Toshiba AS311- Manuals

4 ASCII Interface Module (AS311) Contents Contents Safety Precautions .................................................................................. 1 About This Manual .................................................................................. 2 1. AS311 Overview ...........................

User’s Manual 5 Contents 6. RAS Information ......................................................................... 51 6.1 LED indication .................................................................................. 52 6.2 Buffer memory information ...............................................

User’s Manual 7 Section 1 AS311 Overview 1.1 Introduction 1.2 AS311 functions 1.3 External features

8 ASCII Interface Module (AS311) 1. AS311 Overview 1.1 Introduction The ASCII interface module AS311 (hereafter called AS311) is a general purpose data communication module for Toshiba’s Programmable Controller PROSEC-T3 (hereafter called T3). By using the AS311, T3 can communicate with external dev...

10 ASCII Interface Module (AS311) 1. AS311 Overview 1.3 External features Status LEDs AS311 • RUN • TX1 • RX1 • TX2 • RX2 8 7 6 5 4 3 2 1 SW3 SW2 SW1 ON → ON → 1 2 3 → ↓ RSW 2 RSW 1 8 7 6 5 4 3 2 1 RESET CH2 CH1 Channel 1 transmission parameter setting switches Channel 2 transmission parameter setti...

12 ASCII Interface Module (AS311) 1. AS311 Overview SW3     RS-232C/RS-422 selection switches (for channel 1) RSW1/RSW2     Optional rotary switches SW3 ON → 3 2 1 Used to select the interface of the channel 1 either RS-232C or RS-422. No.1 OFF ON Interface RS-232C RS-422 Used to connect the...

User’s Manual 15 Section 2 Specifications 2.1 General specifications 2.2 Functional specifications 2.3 Transmission specifications

User’s Manual 17 2. Specifications 2.3 Transmission specifications Item Channel 1 Channel 2 Interface RS-232C or RS-422 RS-232C Transmission mode Full-duplex Synchronizing Start-stop method (asynchronous) Transmission speed 300, 600, 1200, 2400, 4800, 9600, 19200 bps Frame format Start bit Data Pari...

User’s Manual 19 Section 3 Cable Connections 3.1 RS-232C connection 3.2 RS-422 connection

20 ASCII Interface Module (AS311) 3. Cable Connections 3.1 RS-232C connection The following figure shows the RS-232C connection. AS311 Shielded cable RS-232C device (1) DSR is supported only on the channel 2. (2) Connect SG each other. (3) Use shielded cable. The cable shield should be connected to ...

User’s Manual 23 Section 4 Register Configuration 4.1 I/O allocation and I/O registers 4.2 AS311 buffer memory

24 ASCII Interface Module (AS311) 4. Register Configuration 4.1 I/O allocation and I/O registers The AS311 has the I/O type ‘ i X+Y 4W ’ for I/O allocation. When the automatic I/O allocation is performed with mounting the AS311, the following I/O allocation table will be created in the T3. (T-PDS sc...

26 ASCII Interface Module (AS311) 4. Register Configuration 4.2 AS311 buffer memory As explained in the previous section, the I/O registers that are assigned to AS311 are used to control the reading and writing timings (handshake) between T3 and AS311. On the other hand, for exchanging the transmiss...

User’s Manual 27 4. Register Configuration 4.2.2 Buffer memory access T3 can read the AS311’s buffer memory contents by using READ instruction (FUN237). Also, T3 can write data into the buffer memory by using WRITE instruction (FUN238). READ instruction (FUN237) Expression:  [ (A) READ (B) → (C) ] ...

User’s Manual 29 4. Register Configuration 4.2.3 Parameter area The parameter area of the buffer memory contains the following contents. Address Address 0 CH1 status 64 1 CH2 status Status and 65 2 CH1 command command 66 3 CH2 command 67 4 Status 1 68 5 RSW1/2 information 69 6 SW1 information 70 7 S...

36 ASCII Interface Module (AS311) 4. Register Configuration 4.2.4 Receiving and transmitting data area The receiving and transmitting data area is provided to exchange the communication characters between T3 and AS311. The address ranges in the AS311 buffer memory are as follows. Address Word data 1...

User’s Manual 37 Section 5 Operation Procedure 5.1 Transmission message format 5.2 Received message read sequence 5.3 Write sequence for message transmitting 5.4 Checking the AS311 operation status 5.5 Resetting the AS311 by software 5.6 Setting the trailing code 5.7 Setting the time-out check time

38 ASCII Interface Module (AS311) 5. Operation Procedure 5.1 Transmission message format The transmission message is composed by ASCII characters and a specified trailing code. The default setting of the trailing code is CR (carriage return code = H0D). Refer to section 5.6 for setting the trailing ...

User’s Manual 39 5. Operation Procedure 5.2 Received message read sequence 5.2.1 Flag control timing In case of receiving a message, the following flags are used for handshaking between T3 and AS311. These flags are the bits of the I/O registers assigned to the AS311. Refer to section 4.1. Read read...

40 ASCII Interface Module (AS311) 5. Operation Procedure 5.2.2 T3 sample program for message receiving A sample program for the “received message read sequence” is shown below. This sample program is for the channel 1 of the AS311 that is allocated to XW000 - YW003. (Main program) Operation for rece...

User’s Manual 43 5. Operation Procedure 5.3 Write sequence for message transmitting 5.3.1 Flag control timing In case of transmitting a message, the following flags are used for handshaking between T3 and AS311. These flags are the bits of the I/O registers assigned to the AS311. Refer to section 4....

44 ASCII Interface Module (AS311) 5. Operation Procedure 5.3.2 T3 sample program for message transmitting A sample program for the “write sequence for message transmitting” is shown below. This sample program is for the channel 1 of the AS311 that is allocated to XW000 - YW003. (Main program) Set th...

User’s Manual 47 5. Operation Procedure 5.4 Checking the AS311 operation status AS311 operation status information is stored in the AS311’s buffer memory address 4 (Status 1). T3 can read this information by using READ instruction. A sample program is shown below. This sample program is for the AS31...

48 ASCII Interface Module (AS311) 5. Operation Procedure 5.5 Resetting the AS311 by software AS311 can be reset by T3 program. Two types of resetting are available, cold reset and hot reset. The cold reset is used to reset the AS311 error state. When the cold reset is executed, the AS311 will be ini...

User’s Manual 49 5. Operation Procedure 5.6 Setting the trailing code The default setting of the trailing code is CR (carriage return code = H0D). The trailing code can be changed by T3 program. To do this, write desired trailing code into the AS311’s buffer memory address 24 (CH1 trailing code) and...

User’s Manual 51 Section 6 RAS Information 6.1 LED indication 6.2 Buffer memory information 6.3 Trouble shooting

54 ASCII Interface Module (AS311) 6. RAS Information 6.2.2 Switch setting status Addresses 5, 6 and 7 of the buffer memory store the switches setting status. Check that the information agrees with the physical setting status if some abnormality has occurred. F E D C B A 9 8 7 6 5 4 3 2 1 0 5 0 0 0 0...

User’s Manual 55 6. RAS Information 6.2.3 Error information for data receiving Address 16 for channel 1 and address 80 for channel 2 store the error information for data receiving. F E D C B A 9 8 7 6 5 4 3 2 1 0 16 or 80 0 0 0 0 BRK PE FE OE Receive error code Bit B BRK (Break) 1 = break detected 0...

56 ASCII Interface Module (AS311) 6. RAS Information 6.2.4 Error information for data transmitting Address 17 for channel 1 and address 81 for channel 2 store the error information for data transmitting. F E D C B A 9 8 7 6 5 4 3 2 1 0 17 or 81 0 0 0 0 0 0 0 0 Transmit error code Bit 7-0 Transmit er...

User’s Manual 57 6. RAS Information 6.3 Trouble shooting When AS311 does not work properly, check the following points. When AS311’s RUN Does the POWER LED on If no, check the power LED does not light; the T3 power supply module voltage/connection. light ? If no, check the internal 5 Vdc current con...

User’s Manual 59 Appendix A.1 Specification of the READ instruction A.2 Specification of the WRITE instruction

60 ASCII Interface Module (AS311) Appendix A.1 Specification of the READ instruction FUN 237 Special module data read (READ) Reads designated range of data from the special module. Input Execution output [ A READ B → C ] Function • This instruction reads data from the buffer memory of the special mo...

62 ASCII Interface Module (AS311) Appendix A.2 Specification of the WRITE instruction FUN 238 Special module data write (WRITE) Writes designated range of data into the special module. Input Execution output [ A WRITE B → C ] Function • This instruction transfers data stored in T3’s registers starti...

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