Siemens SIMATIC TIWAY 1 - Manuals

THE UNILINK HOST ADAPTER UNILINK HOST ADAPTER 1–5 USER MANUAL The adapter is configurable for a variety of applications needs andincludes multiple host computer support, allowing several hostcomputers to communicate with the secondary devices on the sameTIWAY I network. The adapter provides transact...

THE UNILINK HOST ADAPTER UNILINK HOST ADAPTER 1–6 USER MANUAL The flexibility of the UNILINK Host Adapter also provides for multiple hosts asillustrated in Figure 1–6. In addition to the process control application, yourmain plant system can link to the same network to track work-in-progress,adjust ...

THE UNILINK HOST ADAPTER UNILINK HOST ADAPTER 1–7 USER MANUAL 1.4 TIWAY I SYSTEM CHARACTERISTICS TIWAY I is a bus structure Local Area Network (LAN) designed for industrialenvironments. The TIWAY I network connects a series of Texas InstrumentsProgrammable Controllers (P/Cs) and other devices to one...

THE UNILINK HOST ADAPTER UNILINK HOST ADAPTER 1–8 USER MANUAL With appropriate host software, an operator can program, monitor, and controlany P/C or other intelligent device on the TIWAY I network from a singlelocation. The importance of the UNILINK Host Adapter is that it provides acommunication l...

THE UNILINK HOST ADAPTER UNILINK HOST ADAPTER 1–9 USER MANUAL 1.5 INSTALLATION Instructions for installing the UNILINK Adapter and the UNILINK HostAdapter PIM are given in the UNILINK Adapter Installation and OperationManual (PPX:TIWAY–8106). It provides the electrical and mechanicalinstallation ins...

UNILINK HOST ADAPTER 2–1 USER MANUAL CHAPTER 2 OPERATION AND APPLICATION 2.1 INTRODUCTION This chapter provides an introduction to the UNILINK Host Adapter operationand how it can be used in typical applications. You should refer to Chapter 5 forthe complete command syntax and to the Glossary for he...

OPERATION AND APPLICATION UNILINK HOST ADAPTER 2–2 USER MANUAL Performance and ApplicationsFlexibility Basic HIU Commands Mode Independent Commands Configure Adapter Commands Extended HIU Commands Network ManagerCommands NUMBER OF COMMANDS Figure 2–2 Performance vs Commands Communications between th...

OPERATION AND APPLICATION UNILINK HOST ADAPTER 2–3 USER MANUAL Host Computer UNILINKHost Adapter Commands Responses Secondary Secondary Figure 2–3 Host Computer To UNILINK Host Adapter Communications Commands are checked for errors before they are executed. The ERRORRESPONSE is a special response th...

OPERATION AND APPLICATION UNILINK HOST ADAPTER 2–4 USER MANUAL 2.3 FUNCTIONAL ORGANIZATION AND OPERATING MODES The UNILINK Host Adapter is organized into two primary functions; the HostInterface Unit (HIU) function and the Network Manager (NM) function. Anadapter can be configured with one of these ...

OPERATION AND APPLICATION UNILINK HOST ADAPTER 2–5 USER MANUAL HIU Establishes communications Uses memory for: Macro Buffers between the host computerand the secondary devices. (Dynamically allocated) Host–to–Secondary Statistics Figure 2–4 Host Interface Unit Function Part of the statistics memory ...

OPERATION AND APPLICATION UNILINK HOST ADAPTER 2–6 USER MANUAL 2.3.2 Network Manager Function Acting as the network primary, the Network Manager function is responsiblefor controlling the message traffic on the TIWAY I network as shown in Figure2–5. It receives the requests from HIUs and stores them...

OPERATION AND APPLICATION UNILINK HOST ADAPTER 2–7 USER MANUAL The following operational modes include the NM function. However, theMHIU/EHA mode does not provide access to the NM command set. Master Host Interface Unit (MHIU) Network Manager (NM) Standalone Network Manager (SANM) Master Host Interf...

OPERATION AND APPLICATION UNILINK HOST ADAPTER 2–8 USER MANUAL 2.3.4 Typical Network Applications Both single and multiple host networks are supported by the UNILINK HostAdapter. Figure 2–7 illustrates a typical single host network which uses anMHIU as the host interface and network manager. HostCom...

OPERATION AND APPLICATION UNILINK HOST ADAPTER 2–9 USER MANUAL HostCom-puter UNILINK UniLink HostAdapter (MHU) HostCom-puter UNILINK UniLink HostAdapter (MHU) Figure 2–8 Typical Multiple Host Network HostCom-puter UNILINK (HIU) HostCom-puter UNILINK (HIU) UNILINK HostCom-puter Figure 2–9 NM Network

OPERATION AND APPLICATION UNILINK HOST ADAPTER 2–10 USER MANUAL 2.3.5 The Emulate Host Adapter Modes There are two modes available that provide an emulation of the TIWAY I HostAdapter; the MHIU/EHA and the HIU/EHA. These modes are limited to thebase command codes 01 through 08, 20, 21, and FC throug...

OPERATION AND APPLICATION UNILINK HOST ADAPTER 2–12 USER MANUAL 2.5 SETTING THE OPERATING MODE Each adapter must be configured for one of the six possible operating modes.The mode is configured with the CONFIGURE ADAPTER command with theexception of the Standalone NM mode, which is chosen by setting...

OPERATION AND APPLICATION UNILINK HOST ADAPTER 2–15 USER MANUAL 2.5.5 Configuring the Standalone Network Manager The Standalone Network Manager (SANM) mode is configured completely withdipswitch settings. The definition for some of the dipswitch positions is differentfor this operating mode as shown...

OPERATION AND APPLICATION UNILINK HOST ADAPTER 2–17 USER MANUAL 2.6 SPECIAL NETWORK MANAGER FEATURES The adapter provides two special features in the MHIU and NM operatingmodes. First is the redundant media channels with selectable automatic mediachannel switching. Second is the background monitor t...

OPERATION AND APPLICATION UNILINK HOST ADAPTER 2–20 USER MANUAL 2.7 THE HIU AS A SECONDARY The HIU function appears as a special secondary device to the NM function. Inaddition to queuing network requests for the NM function to process, the HIUfunction will respond to TIWAY I Primitives 02 — Machine...

OPERATION AND APPLICATION UNILINK HOST ADAPTER 2–22 USER MANUAL 2.8 MODE INDEPENDENT OPERATIONS The mode independent commands perform hardware and software resets, andexternal I/O point operations regardless of the operating modes. 2.8.1 Reset Commands There are two reset commands that can be sent t...

OPERATION AND APPLICATION UNILINK HOST ADAPTER 2–23 USER MANUAL 2.8.2 The External Input/Output Points The UNILINK Adapter provides a single external input point and a singleexternal output point. These two points operate independently and can be usedin a variety of applications like a remote “Adapt...

OPERATION AND APPLICATION UNILINK HOST ADAPTER 2–25 USER MANUAL 2.9 BASIC NETWORK OPERATIONS The simplest network operations, in either a single or multiple host network,are performed using the Base HIU commands, codes 1–8. These commandsallow you to bring secondary devices online and offline, send ...

OPERATION AND APPLICATION UNILINK HOST ADAPTER 2–27 USER MANUAL The BROADCAST NETWORK DATA TRANSFER command will send thePrimitive to all logically connected secondary devices on the network and isprovided for backward compatibility with the original TIWAY I Host Adapter.The Broadcast/Poll sequence ...

OPERATION AND APPLICATION UNILINK HOST ADAPTER 2–28 USER MANUAL 02 0002 11 00 02 03 01 03 01 0002 11 01 03 02 03 02 0002 11 01 03 03 Issue Broadcast command Accepted response Poll address #1 Address #1 response Poll address #2 Address #2 response Poll remaining addresses Example 2–1 BROADCAST/POLL E...

OPERATION AND APPLICATION UNILINK HOST ADAPTER 2–30 USER MANUAL 2.10 EXTENDED NETWORK OPERATIONS The Extended HIU (EHIU) commands provide several performanceimprovement benefits through macros and bandwidth adjustments. 2.10.1 What Are Macros? Normally, when the host computer issues a network reques...

OPERATION AND APPLICATION UNILINK HOST ADAPTER 2–32 USER MANUAL 2.10.2 The Parts of a Macro MACRO HEADER MACRO COMMAND BUFFER MACRO RESPONSE BUFFER Figure 2–14 The Parts of a Macro Each macro is stored in a variable length buffer. The macro buffer is referencedby a unique buffer number assigned by t...

OPERATION AND APPLICATION UNILINK HOST ADAPTER 2–33 USER MANUAL The total macro memory requirements can be calculated by summing thememory for each individual macro. For example, suppose that you use onemacro to connect secondary #7, another macro to issue a Primitive 45 bytes longexpecting a respon...

OPERATION AND APPLICATION UNILINK HOST ADAPTER 2–35 USER MANUAL 2.10.4 Setting Up A Macro Figure 2–16 flowcharts the steps for setting up macros. Commands for checkingavailable memory are not included in the flowchart, but are described in thesections that follow. Allocate ASource ID Allocate AMacro...

OPERATION AND APPLICATION UNILINK HOST ADAPTER 2–36 USER MANUAL 2.10.4.1 Allocate A Source Identification Number Use the ALLOCATE SOURCE ID command, code 10, to specify a SourceIdentification number which can range from 1 to 254 (01 to FE hex). Onlythirty-two unique Source Identification numbers can...

OPERATION AND APPLICATION UNILINK HOST ADAPTER 2–37 USER MANUAL If this command is accepted, the UNILINK Host Adapter will echo back thissame command string, otherwise the ERROR RESPONSE will be returned.Source Ids can also be used to group network responses, such as the status ofeach device. Only o...

OPERATION AND APPLICATION UNILINK HOST ADAPTER 2–38 USER MANUAL 2.10.4.3 Define The Macro Use the DEFINE MACRO command, code 14, to define the macro and the macrooptions. Figure 2–18 shows the DEFINE MACRO command frame. Macros canconnect a secondary, disconnect a secondary, or send a Primitive to a...

OPERATION AND APPLICATION UNILINK HOST ADAPTER 2–40 USER MANUAL MSB LSB Byte ACTIONS (hex) 0 0 0 0 0 0 0 0 = 00 Non-repetitive, must be explicitlyenabled, 1 1 0 0 0 0 0 0 = C0 Repetitive, auto enabled, will notfreeze exception 0 1 1 1 0 0 0 0 = 70 Repetitive, must be explicitly enabled,will freeze e...

OPERATION AND APPLICATION UNILINK HOST ADAPTER 2–41 USER MANUAL You can request more than one buffer at a time; however, be sure that the totalcombined length of each buffer response does not exceed the maximum messagelength, or the ERROR RESPONSE will be returned. The Primitive data must fitinto on...

OPERATION AND APPLICATION UNILINK HOST ADAPTER 2–44 USER MANUAL UNILINK Host Adapter Macro Response Buffer #A Macro Response Buffer #B Secondary#1 Secondary#2 Data Packet Data Packet Figure 2–19 Link Macro Store and Forward Operation Both macros must be disabled before the LINK MACRO command will be...

OPERATION AND APPLICATION UNILINK HOST ADAPTER 2–45 USER MANUAL Once the action macro has successfully completed, the trigger macro behaves asthough the link never existed. If it is a repetitive macro, it will be enabled. Thetrigger macro’s exception flag is also set as though the link never existed...

UNILINK HOST ADAPTER 3–1 USER MANUAL CHAPTER 3 CONFIGURING THE HOST COMPUTER PORT 3.1 THE HOST COMPUTER INTERFACE The UNILINK Host Adapter communicates with a wide range of host computerdevices through a serial binary data interface using EIA RS–232–C controlsignals and EIA RS–423–A drivers as illus...

CONFIGURING THE HOST COMPUTER PORT UNILINK HOST ADAPTER 3–2 USER MANUAL 3.2 RS–232–C/RS–423–A PHYSICAL INTERFACE Port 3 on the UNILINK Host Adapter, shown in Figure 3–2, is a serialcommunications interface which implements a subset of RS–232–C control,data, and timing signals using RS–423–A drivers ...

CONFIGURING THE HOST COMPUTER PORT UNILINK HOST ADAPTER 3–3 USER MANUAL Table 3–1 RS–232–C/RS–423–A “D” Connector Pin Assignment Interchange Circuit Connector Pin No. CCITT Description AA 1 101 Protective GroundSignal GroundTransmitted DataRecieve DataRequest To SendClear To SendData Set ReadyData T...

CONFIGURING THE HOST COMPUTER PORT UNILINK HOST ADAPTER 3–6 USER MANUAL 3.2.3 Multidrop Host Interface Circuit You can multidrop up to 32 adapters using modems in a multipoint circuit asshown in Figure 3–6. This allows the host computer to control multiple TIWAY Inetworks; however, each adapter must...

CONFIGURING THE HOST COMPUTER PORT UNILINK HOST ADAPTER 3–8 USER MANUAL 3.3 HOST PORT COMMUNICATIONS The UNILINK Host Adapter provides a choice of two data link layer protocolsfor ensuring data integrity through the physical link; the Byte–oriented DataLink Control (BDLC) protocol and the Non–Intell...

CONFIGURING THE HOST COMPUTER PORT UNILINK HOST ADAPTER 3–9 USER MANUAL The host computer must wait for the adapter response for the commandissued, before another command can be issued. This command/responsesequence, illustrated in Figure 3–8, ensures that the response matchesthe command. It is desi...

CONFIGURING THE HOST COMPUTER PORT UNILINK HOST ADAPTER 3–11 USER MANUAL BDLC Host Command BDLC Host Command RR, “Poll” RR, “Poll” RR, “Message Received” RR, “Message Received” First Network Response Second Network Response Host Computer UNILINK Host Adapter Figure 3–9 BDLC Multiple Outstanding Tran...

CONFIGURING THE HOST COMPUTER PORT UNILINK HOST ADAPTER 3–12 USER MANUAL The host port communication parameters are configured with two 10-positiondipswitches located at the front of the adapter as shown in Figure 3–3. To selectNITP as the operating protocol, set position 1 of Dipswitch 1 up as show...

CONFIGURING THE HOST COMPUTER PORT UNILINK HOST ADAPTER 3–13 USER MANUAL Next set the positions on Dipswitch 2 to correspond with the communicationparameters set for the host computer. The adapter always communicates withthe host computer using seven data bits, one start bit, and one stop bit. The b...

CONFIGURING THE HOST COMPUTER PORT UNILINK HOST ADAPTER 3–14 USER MANUAL Position 9 on Dipswitch 2 is for selecting the adapter ’s operational mode and willbe discussed in more detail in Chapter 2. Position 10 should be down for normaloperation. The other switch positions on Dipswitch 1 define the T...

CONFIGURING THE HOST COMPUTER PORT UNILINK HOST ADAPTER 3–15 USER MANUAL Table 3–3 BDLC Protocol Address Dipswitch 1 Positions Address 0123456789 10 11 1213141516171819202122232425262728293031 0 0 0 0 0 4 5 6 7 8 0000000000000001111111111111111 0000001111111100000000111111111 00011110000111100001111...

CONFIGURING THE HOST COMPUTER PORT UNILINK HOST ADAPTER 3–16 USER MANUAL 3.4 HOST COMMAND TIMEOUT The Host Command Timeout is the user-selectable time period that guaranteesa response from the adapter will be returned within that limit. If the adapterhas not received a response from the secondary de...

UNILINK HOST ADAPTER 4–1 USER MANUAL CHAPTER 4 THE TIWAY I NETWORK PORTS 4.1 NETWORK PORTS The UNILINK Adapter offers a choice of two physical interfaces for networkcommunications; the Local Line or Modem interfaces. The following table liststhe model numbers and the type of interfaces in each. Tabl...

THE TIWAY I NETWORK PORTS UNILINK HOST ADAPTER 4-2 USER MANUAL 4.1.1 Local Line Interface Port 1 Port 2 Port 3 Port 4 Local Line Interface Ports I/O 12345 Figure 4–1 Local Line Interface Ports The Local Line interface to TIWAY I is a female 9-pin “D” connector shown asPorts 1 and 2 in Figure 4–1. Po...

THE TIWAY I NETWORK PORTS UNILINK HOST ADAPTER 4–3 USER MANUAL The TIWAY I Local Line interface has the advantage of being more economicalthan the modem interface since the media is shielded twisted pair cable, such asBelden  9860 or Belden 9271. Figure 4–2 shows the TIWAY I bus structure with the ...

THE TIWAY I NETWORK PORTS UNILINK HOST ADAPTER 4-4 USER MANUAL 30 25 20 15 10 8 5 4 3 2 1 6 7 10 50 100 250 Cable Unit Loading (Number of Stations) 19.2 k bps 38.4 k bps 57.6 k bps 115.2 k bps 115.2 k bps or lower Belden 9860 Belden 9271 Cable Distance (1000’ s of feet) 20 5 I003648 Figure 4–3 Numbe...

THE TIWAY I NETWORK PORTS UNILINK HOST ADAPTER 4-6 USER MANUAL Table 4–3 RS–232–C/RS–423–A “D” Connector Pin Assignment Interchange Circuit Connector Pin No. CCITT Description AA 1 101 Protective GroundSignal GroundTransmitted DataReceive DataRequest To SendClear To SendData Set ReadyData Terminal R...

THE TIWAY I NETWORK PORTS UNILINK HOST ADAPTER 4-8 USER MANUAL 4.2 REDUNDANT MEDIA TRANSMISSION Most TIWAY I conformant devices support a redundant media scheme whichprovides active access to a device over one of two independent media channels.Should access to a device fail on one channel, communica...

THE TIWAY I NETWORK PORTS UNILINK HOST ADAPTER 4–9 USER MANUAL 4.3 TIWAY I HDLC NETWORK PROTOCOL The TIWAY I network uses the HDLC protocol in the unbalanced, normalresponse mode (UNRM) for transmission of commands and responses. In thismode a single Network Manager (primary) controls the flow of me...

THE TIWAY I NETWORK PORTS UNILINK HOST ADAPTER 4-10 USER MANUAL 4.4 SETTING THE NETWORK PORTS PARAMETERS The network ports must be explicitly enabled with the CONFIGURE HIU andCONFIGURE NETWORK MANAGER commands. The syntax for thesecommands is given in Chapter 5. The network parameters specified exp...

THE TIWAY I NETWORK PORTS UNILINK HOST ADAPTER 4–11 USER MANUAL 1 2 3 4 5 6 7 8 9 10 U P DIPSWITCH 1 HOST COMMAND TIWAY I BAUD RATE MSB LSB UP = SYNCHRONOUSDOWN = ASYNCHRONOUS UP = FULL DUPLEX DOWN = HALF DUPLEX UP = NRZIDOWN = NRZ UP = NITP TIWAY I TIWAY I TIWAY I TIMEOUT Figure 4–7 Network Port Di...

UNILINK HOST ADAPTER 5–1 USER MANUAL CHAPTER 5 HOST COMMAND SET REFERENCE 5.1 INTRODUCTION This chapter presents the syntax for each command. The command syntaxdescriptions begin in Paragraph 5.2 and are listed in numerical order (startingat 00 to FE hexadecimal). The command syntax conventions are ...

HOST COMMAND SET REFERENCE UNILINK HOST ADAPTER 5–4 USER MANUAL The cycle at power-up or reset is shown in Figure 5–2. Configuration Initiation Operation Performance Termination Figure 5–2 Command Usage Cycle 5.1.3 Secondary Addresses Secondary addresses are one byte in length and range from 1 to 25...

HOST COMMAND SET REFERENCE UNILINK HOST ADAPTER 5–5 USER MANUAL Table 5–1 Secondary Addresses Decimal Address 0 1–254 255 Hexadecimal Address 00 01–FE FF Usage Reserved for special functions,refer to individual commands. Available for secondary deviceaddresses. Reserved for special functions,normall...

HOST COMMAND SET REFERENCE UNILINK HOST ADAPTER 5–6 USER MANUAL 5.2 ERROR RESPONSE An ERROR RESPONSE, rather than the normal command response, will bereturned when the host request is invalid. Response: 00 dddd (aa) Parameters: dddd Error codes. All error codes and corrective actions are given inCha...

HOST COMMAND SET REFERENCE UNILINK HOST ADAPTER 5–7 USER MANUAL 5.3 BASE HIU COMMANDS The Base HIU commands are backward compatible with the original commandsfor the TIWAY I Host Adapter. These commands cause a direct network requestto be issued to connect and disconnect secondaries, send data to an...

HOST COMMAND SET REFERENCE UNILINK HOST ADAPTER 5–19 USER MANUAL 5.4 THE EXTENDED HIU COMMANDS The Extended HIU commands enhance the original TIWAY I Host Adaptercommand set by providing improved performance and operation. Some of thefunctions provided by these commands are the definition and operat...

HOST COMMAND SET REFERENCE UNILINK HOST ADAPTER 5–22 USER MANUAL 0 0 = Asynchronous, 1 = Synchronous 0 = Half Duplex, 1 = Full Duplex 1 0 = NRZ, 1 = NRZI 2 Not Used 3 Baud Rate (Bit 4 is MSB) 4 5 6 7 8 Not Used 9 10 12 13 14 15 MSB LSB Figure 5–4 CONFIGURE HIU Command — Option 01 Bit Map Table 5–2 B...

HOST COMMAND SET REFERENCE UNILINK HOST ADAPTER 5–24 USER MANUAL 5.4.3 Report HIU Configuration — 12 The REPORT HIU CONFIGURATION command reports the values for theHIU options specified with the CONFIGURE HIU command. Command: 12 Response: 12 dddddddd ff 01 vvvv 02 vvvv 03 vvvv Usage: CONFIGURATION ...

HOST COMMAND SET REFERENCE UNILINK HOST ADAPTER 5–25 USER MANUAL 5.4.4 Allocate Macro Storage Buffers — 13 The ALLOCATE MACRO STORAGE BUFFERS command allocates buffers formacro storage. This command can be repeatedly issued, and the HIU willcontinue to add buffers until the HIU memory is either used...

HOST COMMAND SET REFERENCE UNILINK HOST ADAPTER 5–29 USER MANUAL oo The macro options byte, which is bit mapped as follows: 0 1 = Automatically Enable For Execution 1 = Repetitive Macro 1 1 = Freeze Macro and Response On Exception 2 0 = Set Exception Flag On First Response 3 Bits 4–7 Are Unused 4 5 ...

HOST COMMAND SET REFERENCE UNILINK HOST ADAPTER 5–32 USER MANUAL Table 5–3 MRSW Values MRSW Values (hex) Description This macro has not been executedsince the last time it was The number of times a repetitivemacro response has been updated. Termination Code – the macro isdisabled due to either an er...

HOST COMMAND SET REFERENCE UNILINK HOST ADAPTER 5–35 USER MANUAL Example: Byte 1, Command Code – ENABLE/ 16 Byte 2, Source Identification Number 0F Bytes 3–4, Enable Buffer #03 03 Bytes 5–6, Disable Buffer #C3 01 C3 00 3E 01 Bytes 7 & 8, Enable Buffer #3E DISABLE MACRO EXECUTION Example 5-1 ENAB...

HOST COMMAND SET REFERENCE UNILINK HOST ADAPTER 5–46 USER MANUAL 5.5 ADAPTER CONFIGURATION COMMANDS The following commands explicitly define the adapter ’s operating mode and willreport the configuration status back to the host computer. Configure Adapter Report Adapter Configuration

HOST COMMAND SET REFERENCE UNILINK HOST ADAPTER 5–49 USER MANUAL 5.5.2 Report Adapter Configuration — 21 The REPORT ADAPTER CONFIGURATION command returns the valuesspecified in the CONFIGURE ADAPTER command. All parameters will bereturned, even the defaults. Command: 21 Response: 21 dddddddd ff 01 v...

HOST COMMAND SET REFERENCE UNILINK HOST ADAPTER 5–50 USER MANUAL 5.6 NETWORK MANAGER COMMANDS The Network Manager commands define and operate the Network Managerfunction of an MHIU or a Network Manager. Additional commands returnstatistical data as a diagnostic aid. Configure Network Manager Report ...

HOST COMMAND SET REFERENCE UNILINK HOST ADAPTER 5–52 USER MANUAL The adapter will automatically recognize which media type isinstalled. The parameters are bit mapped as shown in Table 5–4with the baud rate selections given in Table 5–5. Table 5–4 Option Code 01 Bit Map Channel B Baud Rate 0 1 2 3 4 ...

HOST COMMAND SET REFERENCE UNILINK HOST ADAPTER 5–53 USER MANUAL Table 5–5 Baud Rates 0000000011 0 0 0 MSB LSB 000111100 011001100 101010101 110 150300600 1200240048009600 1920038400 Baud Rate 11 00 11 01 57600 115200 ** * Not available on host port. Option–02 = This parameter defines the Channel A ...

HOST COMMAND SET REFERENCE UNILINK HOST ADAPTER 5–55 USER MANUAL Option–09 = This parameter defines the number of Network Manager buffers to allocate to an HIU that is brought online after beingdetected by the background monitor feature. Bits 1 to 15represent the binary value for the number of Netwo...

HOST COMMAND SET REFERENCE UNILINK HOST ADAPTER 5–57 USER MANUAL 5.6.2 Report Network Manager Configuration — 31 The REPORT NETWORK MANAGER CONFIGURATION command returnsthe values for all the options specified in the CONFIGURE NETWORKMANAGER command, including default values. Command: 31 Response: 3...

HOST COMMAND SET REFERENCE UNILINK HOST ADAPTER 5–59 USER MANUAL 0 1 2 3 4 5 6 7 Not used 1 = HIU Allocated NM Buffers 1 = Secondary Is An HIU 1 = Secondary Has Been Identified0 = Secondary Has Not Been Identified 1 = Secondary Is On–Line 1 = Current Channel Is B 1 = Channel B Available 1 = Channel ...

HOST COMMAND SET REFERENCE UNILINK HOST ADAPTER 5–67 USER MANUAL 5.7 MODE INDEPENDENT COMMANDS The following commands may be issued at any time to a UNILINK Host Adapterconfigured in any of the operating modes, except the Standalone NetworkManager mode. These commands control miscellaneous aspects o...

HOST COMMAND SET REFERENCE UNILINK HOST ADAPTER 5–72 USER MANUAL 5.8 COMMAND SYNTAX QUICK REFERENCE ERROR RESPONSE Response: 00 dddd (aa) BASE HIU COMMANDS Send Network Data Command: 01 aa pppp...Response: 01 aa pppp... Broadcast Network Data Transfer Command: 02 pppp...Response: 02 Poll Secondary C...

HOST COMMAND SET REFERENCE UNILINK HOST ADAPTER 5–76 USER MANUAL 5.9 COMMAND CODES REFERENCE (NUMERICAL ORDER) Command Code Description 00 Error Response 01 Send Network Data 02 Broadcast Network Data Transfer 03 Poll Secondary 04 Connect Secondaries 05 Disconnect Secondaries 06 Read Secondary Log 0...

HOST COMMAND SET REFERENCE UNILINK HOST ADAPTER 5–78 USER MANUAL 36 Report Network Bandwidth Allocation 37 Report Network Manager Secondary Statistics 38 Report Network Manager Network Statistics Input Point/Output Point Commands FC Modify External Output StatusFD Report External Input Status

UNILINK HOST ADAPTER 6–1 USER MANUAL CHAPTER 6 ERROR CODES AND DIAGNOSTICS 6.1 ERROR RESPONSE CODES The following lists the possible error codes that will be returned with theERROR RESPONSE when an error occurs. Macro response errors are listed inParagraph 6.3. CODE DESCRIPTION AND SOLUTION 0001 The...

ERROR CODES AND DIAGNOSTICS UNILINK HOST ADAPTER 6–6 USER MANUAL 6.2 PRIMITIVE ERRORS The HIU function will respond to the 02, 03, and 04 TIWAY I Primitives, just likeNetwork Interface Modules (NIMs). The following Primitive response errorswill be returned to any device sending an invalid Primitive....

ERROR CODES AND DIAGNOSTICS UNILINK HOST ADAPTER 6–7 USER MANUAL 6.3 MRSW TERMINATION CODES The following lists the Macro Response Status Word (MRSW) termination codesthat will be set when a macro has completed execution either successfully or byan exception. The adapter will optionally return the M...

ERROR CODES AND DIAGNOSTICS UNILINK HOST ADAPTER 6–9 USER MANUAL 6.4 DIAGNOSTIC TESTS The UNILINK Host Adapter provides both selectable and continuousdiagnostic tests to insure proper operation. The pattern shown on the six LEDs,shown in Figure 6–1, will indicate whether the adapter is operating nor...

ERROR CODES AND DIAGNOSTICS UNILINK HOST ADAPTER 6–10 USER MANUAL 6.4.1 The LEDs Only the Adapter Good LED is visible through the door during normaloperation. The Adapter Good LED will remain lit when the adapter is operatingproperly. The remaining LEDs assume the meanings shown in Figure 6–2during ...

ERROR CODES AND DIAGNOSTICS UNILINK HOST ADAPTER 6–11 USER MANUAL 1 2 3 4 5 6 7 8 9 10 UP UP = TEST MODEDOWN = RUN MODE UP = HIU/EHA–IO LOOP TESDOWN = MHIU/EHA Figure 6–3 Test Mode Dipswitch When Position 10 of Dipswitch 2 is up, the test mode is selected. The test modeperforms all of the diagnostic...

ERROR CODES AND DIAGNOSTICS UNILINK HOST ADAPTER 6–12 USER MANUAL 6.4.3 LED Error Codes Figure 6–4 shows the pattern that can be displayed on the LEDs when you runany of the diagnostic tests. If an error does occur, the Adapter Good LED willflash two times each second and one of the error codes show...

ERROR CODES AND DIAGNOSTICS UNILINK HOST ADAPTER 6–13 USER MANUAL 6.4.4 External I/O Loopback Test There is a special diagnostic test for the Input/Output Points. This test is activewhen Positions 9 and 10 of Dipswitch 2 are up. To run this test, perform thefollowing steps. 1. Install a 20.0 to 30.0...

UNILINK HOST ADAPTER A–1 USER MANUAL APPENDIX A USING THE NON-INTELLIGENT TERMINAL PROTOCOL A.1 CHARACTERISTICS OF THE NON–INTELLIGENT TERMINAL PROTOCOL The Non-Intelligent Terminal Protocol (NITP) is a simple, character-orientedmethod of data link communications using standard 7-bit ASCII codes. Bo...

USING THE NON-INTELLIGENT TERMINAL PROTOCOL UNILINK HOST ADAPTER A-2 USER MANUAL Table A–1 NITP Character Set 303132333435363738393A3B414243444546 0123456789:;ABCDEF 7–bit ASCII Code DisplayedCharacter NOTE ASCII characters other than those in the NITPcharacter set, such as a carriage return or line...

USING THE NON-INTELLIGENT TERMINAL PROTOCOL UNILINK HOST ADAPTER A–5 USER MANUAL Then insert the character count at the beginning of the message body as“00182001000202000E”. The ECC is given by: Two’s complementof (0018 + 2001 + 0002 + 0200 + 0E00) = CFE5 (ECC) Fill Characters so that the complete m...

USING THE NON-INTELLIGENT TERMINAL PROTOCOL UNILINK HOST ADAPTER A-6 USER MANUAL Figure A–2 illustrates how a TIWAY I Primitive is enclosed in the adaptercommand string which is enclosed in the NITP message structure. Length Primitive Code Descriptor Field(s) Data Unit Field(s) Command Code Secondar...

USING THE NON-INTELLIGENT TERMINAL PROTOCOL UNILINK HOST ADAPTER A–7 USER MANUAL A.2 NITP Protocol Operation Setting Position 1 of Dipswitch 1 up selects NITP as the communication protocolbetween the host computer and the adapter. Messages in the form of adaptercommands are composed and framed by th...

USING THE NON-INTELLIGENT TERMINAL PROTOCOL UNILINK HOST ADAPTER A-8 USER MANUAL A.2.1 Errors and Error Recovery The following ERROR RESPONSE codes from Chapter 6 relate to NITP datalink errors: 0086 HOST FRAME TOO LONG — the frame exceeded 590 bytes in totallength. Remember that the message body is...

UNILINK HOST ADAPTER B–1 USER MANUAL APPENDIX B USING THE BDLC PROTOCOL The BDLC protocol is a subset of the ANSI X3.66–1979 Advanced DataCommunication Control Procedure (ADCCP). BDLC provides a data linkbetween the host computer and one or more UNILINK Host Adapters. The datalink is responsible for...

USING THE BDLC PROTOCOL UNILINK HOST ADAPTER B–2 USER MANUAL B.1 BDLC CONFIGURATION BDLC is an unbalanced configuration meaning that there is one primarystation (the host computer) and one or more secondary stations (UNILINK HostAdapters) as illustrated in Figure B–1. The primary is responsible for ...

USING THE BDLC PROTOCOL UNILINK HOST ADAPTER B–3 USER MANUAL B.2 BDLC PROTOCOL FRAME STRUCTURE Information is transferred in single frames without any blocking. Each frameincludes the destination address, the BDLC control field, the information, andthe block checksum as shown in Figure B–2. Rather t...

USING THE BDLC PROTOCOL UNILINK HOST ADAPTER B–4 USER MANUAL B.2.2 Address Field The address field is eight bits in length and specifies the address of theUNILINK Host Adapter which is to receive the message. Up to 32 adapters maybe multidropped on the same host network as discussed in Paragraph 3.2...

USING THE BDLC PROTOCOL UNILINK HOST ADAPTER B–5 USER MANUAL B.2.5 Block Checksum Field This two-byte field is the Block Checksum (BCS) calculated by the transmitterand checked by the receiver to detect transmission errors. The calculation is a16-bit one’s complement Fletcher Checksum. The BCS is ca...

USING THE BDLC PROTOCOL UNILINK HOST ADAPTER B–6 USER MANUAL B.3 BDLC PROTOCOL CONTROL FIELD STRUCTURES P/F N(S) 0 N(R) P/F 1 N(R) P/F 1 N 0 1 2 3 4 5 6 7 MSB LSB 0 1 S M I–Frame Format Supervisoty Frame Unnumbered Frame Format Format First bit transmitted Where: N(S) is the transmitting station sen...

USING THE BDLC PROTOCOL UNILINK HOST ADAPTER B–8 USER MANUAL B.4 COMMANDS AND RESPONSES The following subset of the ANSI X3.66 standard is supported by the UNILINKHost Adapter: SNRM — The Set Normal Response Mode command is issued by thehost computer to logically activate the adapter ’s host interfa...

USING THE BDLC PROTOCOL UNILINK HOST ADAPTER B–10 USER MANUAL B.5 ERRORS AND ERROR RECOVERY BDLCs design includes methods for detecting and correcting transmissionerrors so that message integrity is assured. Methods are provided for busycondition, N(S) and N(R) sequence errors, BCS errors, invalid c...

USING THE BDLC PROTOCOL UNILINK HOST ADAPTER B–12 USER MANUAL B.5.7 FRMR Recovery The FRMR response is returned by the adapter when it receives a frame with aninvalid command, a frame of excessive length, or when the N(R) does not match.This response includes a three-byte information field in the fo...

USING THE BDLC PROTOCOL UNILINK HOST ADAPTER B–13 USER MANUAL B.6 ILLUSTRATIVE BDLC SEQUENCES Example B–1 illustrates an error-free BDLC sequence between the hostcomputer and the adapter. This sequence shows how information is efficientlytransferred, since acknowledgements are part of the control su...

USING THE BDLC PROTOCOL UNILINK HOST ADAPTER B–16 USER MANUAL B.7 BLOCK CHECKSUM GENERATION AND CHECKING To calculate the BCS: 1. Zero both BCS field bytes. 2. Begin with the address field byte. 3. Add the byte to the most significant BCS byte including any carry bitgenerated. (Use only eight bit ar...

USING THE BDLC PROTOCOL UNILINK HOST ADAPTER B–18 USER MANUAL The receiver checks the BCS by adding all the received frame bytes excludingthe starting and ending flags, and any inserted DLEs. The procedure is: 1. Zero the two calculation registers. 2. Begin with the address field byte. 3. Add the by...

19 Appendices C and D not available in electronic form.

UNILINK HOST ADAPTER E–1 USER MANUAL APPENDIX E CONFIGURATION WORKSHEET Network Name Location Cable DiagramReference Adapter Configuration Parameters Adapter Mode MHIUMHIU/EHA NM HIUHIU/EHASANM HIU Address MaximumSecondaryAddress Macro MemoryRequirements 16 kbytes 24 kbytes As much as possible

CONFIGURATION WORKSHEET UNILINK HOST ADAPTER E–2 USER MANUAL Host Computer Port Parameters Baud Rate 110 150300600 1200 240048009600 19,200 38,400 Synchronous Asynchronous Full Duplex Half Duplex Parity EnabledDisabled Protocol BDLC NITP BDLC Address Network Ports Parameters Baud 110 150300600 1200 ...

UNILINK HOST ADAPTER F–1 USER MANUAL APPENDIX F MACRO DEFINITIONS FORM Table F–1 is a worksheet for planning macro buffer requirements. The labels atthe top match the macro definitions with the particular network and adapter.They are: Network Enter the name used to describe the network with this Nam...