Page 2 - Mexico and; One Omega Drive, River Bend Technology Centre; OMEGAne t
Servicing North America: USA: One Omega Drive, Box 4047 ISO 9001 Certified Stamford, CT 06907-0047Tel: (203) 359-1660 FAX: (203) 359-7700 e-mail: [email protected] Canada: 976 BergarLaval (Quebec) H7L 5A1Tel: (514) 856-6928 FAX: (514) 856-6886 e-mail: [email protected] For immediate technical or applicatio...
Page 3 - PREFACE; Trademarks
1 PREFACE This instruction manual describes the optional RS-422-A communication function forthe VR200 view recorder. For details concerning the operations of the recorder, refer tothe instruction manual for the VR200. Trademarks • “IBM” is a trademark of International Business Machines Corporation.•...
Page 4 - CONTENTS; Chapter 1 INSTALLING THE RS-422-A INTERFACE
2 CONTENTS PREFACE Chapter 1 INSTALLING THE RS-422-A INTERFACE 1.1 Interface Specifications ................................................................................................................ 1-11.2 Interface Terminal ........................................................................
Page 5 - Program to Read Parameter Settings from VR200, Display Them
3 CONTENTS Chapter 1 Chapter 2 Chapter 3 Chapter 4 Chapter 5 Chapter 6 Chapter 7 INDEX APPENDIX 2.4 Escape Sequence ......................................................................................................................... 2-13 2.4.1 Execution of Trigger .................................
Page 6 - INTERFACE; Interface Specifications
1 - 1 1 INST ALLING THE RS-422-A INTERF ACE 1.1 Interface Specifications Chapter 1 INSTALLING THE RS-422-A INTERFACE The option /C3 provides the VR200 view recorder with the EIA (Electronic IndustriesAssociation) RS-422-A communication interface to allow a host computer to do thefollowing: • read me...
Page 7 - Interface Terminal
1 - 2 1.2 Interface Terminal 1.2.1 Terminal Assignment MEMORY SD A SD B SG G (signal ground) RD A RD B FG G (frame ground) Connect RD to TD of the host computer.Connect SD to RD of the host computer. Option terminal Indication of RS-422-A terminals Figure 1.1 Terminal Assignment 1.2.2 Cable Terminat...
Page 8 - Data Configuration
1 - 3 1 INST ALLING THE RS-422-A INTERF ACE 1.3 Communication Wiring If the host PC is equipped with an RS-422-A interface, the VR200 can be connecteddirectly. If the host PC is equipped with only an RS-232-C interface, the VR200 can beconnected using a converter (SHARP model Z-101HE or equivalent)....
Page 12 - Chapter 2 RECEIVING FUNCTIONS
2 - 1 2 RECEIVING FUNCTIONS Chapter 2 RECEIVING FUNCTIONS This chapter describes the program set commands and program control commands.Remember first to open a device by invoking the ESC O command before the set orcontrol commands can be sent. 2.1 General Rules for Commands A command is represented ...
Page 13 - Program Set Commands
2 - 2 2.2 Program Set Commands 2.2.1 List of Program Set Commands Command Type Command Function Set SR SASN SW SDSY SZ SP SK STSL SF SG SC SM SHSX MD Sets the input range and display scale.Sets the alarms.Sets the engineering unit.Sets the waveform span rate.Sets the date and time.Copies the channel...
Page 17 - Setting the Partial Expanded Display; with style number 1 or lower)
2 - 6 2.2.8 Setting the Discrete (ZONE) Display (See Section 4.7.1 of the instruction manual for the VR200.) Format: SZp1, p2, p3 p1: Channel number (CC) p2: Lower display boundary value (0 to 95) p3: Upper display boundary value (5 to 100) Example: SZ02, 30,50 This example results in the display fo...
Page 19 - 8 Setting of the Number of Divisions of the Bar Graph Scale
2 - 8 2.2.15 Setting the LCD Brightness and LCD Saver (LCD) (See Section 4.8 of the instruction manual for the VR200.) Format: SCp1, p2, p3 p1: LCD brightness level. 0 to 15 p2: Sets the LCD saver function “ON” or “OFF.” p3: Timer setting to activate the LCD saver. Select from 1, 2, 5, 10,30, and 60...
Page 20 - with style number 2 or higher)
2 - 9 2 RECEIVING FUNCTIONS If your model has -3M option, add the parameter p3. p3: Select the methods when saving measurement data to the floppy disk: ALL (default) save all measurement data from the VR200 internal memory. UNSAVED: Save only the meansurement data newly loaded to the VR200 internal ...
Page 21 - Program Control Commands
2 - 10 2.3 Program Control Commands 2.3.1 List of Program Control Commands Command Type Command Function Control UDAK MI EVBO TS FM LF LO LI ME UM Returns the screen to the standard screen.Acknowledges the alarm(s).Initializes the data memory.Writes a time-axis mark or raises a manual trigger.Specif...
Page 22 - Selecting the Output Format for Measured Data; Information; 0 Loading the SET Configuration File
2 - 11 2 RECEIVING FUNCTIONS 2.3.7 Selecting the Output Data Command Function TS0 Requests the measured values. TS1 Requests the parameter set values. TS2 Requests unit and decimal point information. 2.3.8 Selecting the Output Format for Measured Data Command Function FM0, p1, p2 Selects the channel...
Page 26 - TRANSMITTING FUNCTIONS; Chapter 3 TRANSMITTING FUNCTIONS; This chapter describes the different output formats.; Introduction to Output Data Formats
3 - 1 3 TRANSMITTING FUNCTIONS 3.1 Introduction to Output Data Formats Chapter 3 TRANSMITTING FUNCTIONS This chapter describes the different output formats. 3.1 Introduction to Output Data Formats The type of data to be sent from the VR200 recorder is specified by the TS command(TS0, TS1, or TS2: se...
Page 27 - Output Data Formats; There are four formats in which data can be output.; Output Format of Measured Values in ASCII Mode
3 - 2 3.2 Output Data Formats There are four formats in which data can be output. • TS0 + ESC T + FM0 (outputs measured values in ASCII mode)• TS0 + ESC T + FM1 (outputs measured values in Binary mode)• TS1 + ESC T + LF (outputs parameter setting values)• TS2 + ESC T + LF (outputs information on eng...
Page 28 - Output Format of Measured Values in Binary Mode; Number of bytes sent = 5
3 - 3 3 TRANSMITTING FUNCTIONS 3.2.2 Output Format of Measured Values in Binary Mode When the TS0, ESC T and FM1 commands are received, the measured values andcomputed results are output in binary. Output format: (1) Sequence of transfer 1 2 3 4 5 6 Byte Number of bytessent (2 bytes) Date and time (...
Page 29 - Output Format of Parameter Settings
3 - 4 (4) Measured data 1 2 3 4 5 Byte A2 A1 A4 A3 Alarm status(for each level)A1 to An correspond to statuses for levels 1 to 4. Alarm status Description 1 2 3 4 5 6 0 No alarm or the alarm function is set to OFF Channel number (1 to 4) Measured value * H (occurrence of high limit alarm) L (occurre...
Page 30 - Output Format of Unit and Decimal Point Information
3 - 5 3 TRANSMITTING FUNCTIONS 3.2.4 Output Format of Unit and Decimal Point Information When receiving the TS2, ESC T, and LF commands, the VR200 recorder sends theinformation on the unit and decimal point in the following format. The channelnumbers can be specified with the LF command. C R L F , N...
Page 31 - TIME CHAR; Chapter 4 TIME CHART
4 - 1 4 TIME CHAR T Chapter 4 TIME CHART One sampling (125 ms) ;; ;;;; ;;;; When outputting binary data * A/D and primarycomputation ESC T command from host Output of data * If the ESC T command is received to output data before the data is updated, the previous sample data will be output.
Page 32 - Chapter 5 INITIAL STATUS; The initial status after power on is as follows.
5 - 1 5 INITIAL ST A T US Chapter 5 INITIAL STATUS The initial status after power on is as follows. TS0 Output data type is the measured values. FM0, 01, 04 Measured values are output as ASCII codes. From channel 01To channel 04 (All channels are specified.) LF 01, 04 The channels for which the set ...
Page 33 - Chapter 6; Preventing Errors
6 - 1 6 ERRORS DURING RS-422-A OUTPUT 6.1 Preventing Errors Chapter 6 ERRORS DURING RS-422- A OUTPUT 6.1 Preventing Errors Do not send an FM or LF command from the host PC until the measured data or setpoint data in all the channels specified by the last command have been output. If an FMor LF comma...
Page 34 - How to Request Error Message Output; (2) Error message sent from VR200 in reply to ESC S command
6 - 2 6.2 How to Request Error Message Output If an error occurs when the host sends a setting or control command to a VR200recorder via the RS-422-A communication interface, the host can request the VR200 tooutput an error message. (1) Error message (error number) request command ESC S (C R ) (L F ...
Page 35 - Timing of Resetting the Error Status
6 - 3 6 ERRORS DURING RS-422-A OUTPUT 6.3 Timing of Resetting the Error Status 6.3 Timing of Resetting the Error Status When the VR200 receives an ESC S command after an error occurred, the recorderoutputs the corresponding error message and the error status is reset at the same time. Error occurred...
Page 36 - PROGRAM EXAMPLES; Chapter 7 PROGRAM EXAMPLES; Examples of application programs for an IBM PC are shown below.; Environment; None; Program to Read Parameter Settings from VR200, Display Them
7 - 1 7 PROGRAM EXAMPLES Chapter 7 PROGRAM EXAMPLES Examples of application programs for an IBM PC are shown below. Environment Computer used: IBM PCMode: Character length = 8 bits, parity = none, stop bit = 1, baud rate =1200 bps Handshake: None The file name used for writing to and reading from th...
Page 37 - :’ For protect receive buffer overflow
7 - 2 7.2 Program to Read Parameter Settings from Disk, Display Them on Screen, and Set up VR200 100 ‘************************************************************ 110 ‘** RS422A Example Program for IBM PC ** 120 ‘** ** 130 ‘** To read setting information ** 140 ‘** ** 150 ‘**************************...
Page 38 - Program to Read Unit and Decimal Point Information from VR200,
7 - 3 7 PROGRAM EXAMPLES 7.3 Program to Read Unit and Decimal Point Information from VR200, Display It on Screen, and Write It to Disk 100 ‘********************************************************** 110 ‘** RS422A Example Program for IBM PC ** 120 ‘** ** 130 ‘** To input and save point and unit info...
Page 40 - Program to Output Measured Data (in Binary Code) from VR200; PRINT A
7 - 5 7 PROGRAM EXAMPLES 7.5 Program to Output Measured Data (in Binary Code) from VR200 and Write to Disk 100 ‘************************************************************ 110 ‘** RS422A Example Program for IBM PC ** 120 ‘** ** 130 ‘** To input and save measured data ** 140 ‘** (ASCII code) ** 150 ...
Page 41 - Appendix 1 ASCII Code Table
App. - 1 IM 4N1A1-11E APPENDIX Appendix 1 ASCII Code Table APPENDIX Appendix 1 ASCII Code Table Note • Select the degree symbol ( ° ) of ° C or ° F as follows: (a) In case of measured values output (TS0), and unit and decimal point output (TS2): ° = space (20H) (b) In case of setting parameter outpu...
Page 42 - Appendix 2 File Naming Rules; File Name Length; Up to seven alphanumeric characters; Lowercase/Uppercase Letters
App. - 2 IM 4N1A1-11E Appendix 2 File Naming Rules File Name Length Data file: Up to seven alphanumeric characters Configuration (parameter settings) file: Up to eight alphanumeric characters Lowercase/Uppercase Letters All lowercase letters are processed as uppercase letters for file names, based o...
Page 43 - INDEX
Index - 1 INDEX INDEX A alarms acknowledgment ............................................. 2-10setting ................................................................ 2-4 ASCII codes ....................................................... App-1 C channel selection ....................................
Page 44 - Index for Command Reference
Index - 2 range settings DELT ........................................................... 2-2DI (Digital Input) ........................................ 2-3RTD ............................................................. 2-2SCL (Scaling) .............................................. 2-3SKIP .........
Page 45 - WARRANT Y/ DISCLAIMER; r a n t y; RETURN REQUEST S / INQUIRIES; WARRANTY
WARRANT Y/ DISCLAIMER OMEGA ENGINEERING, INC. warrants this unit to be free of defects in materials and workmanship for aperiod of 25 months f rom date of purchase. OMEGA Warranty adds an additional one (1) month grace period to the normal t wo (2) year product war r a n t y to cover handling and sh...
