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KYOWA WGI-400A Instruction Manual

Instrumentation amplifier for optional functions rs-232c rs-485 bcd
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Instrumentation Amplifier with Multipurpose Indicator.
Read this Instruction Manual for Optional Functions for the
WGI-400A carefully in order to make full use of the high performance
capabilities of the product.
Do not use the product in methods other than described in this Manual.
Copyright © KYOWA ELECTRONIC INSTRUMENTS CO., LTD. All rights reserved.
This Instruction Manual may not be copied or reproduced, in whole or part, without consent of KYOWA.
The Manual has been complied with great care. However, if the need should arise for more information, contact
KYOWA or our representatives.
The contents of the Manual are subjected to change without prior notice.
INSTRUMENTATION AMPLIFIER
WGI-400A
INSTRUCTION MANUAL
OPTIONAL FUNCTIONS
you
for
purchasing
For
RS-232C
RS-485
BCD
KYOWA's
IM-A-684B April 2022
product
WGI-400A

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Summary of Contents for KYOWA WGI-400A

  • Page 1 Copyright © KYOWA ELECTRONIC INSTRUMENTS CO., LTD. All rights reserved. This Instruction Manual may not be copied or reproduced, in whole or part, without consent of KYOWA. The Manual has been complied with great care. However, if the need should arise for more information, contact KYOWA or our representatives.
  • Page 3 CONTENTS 1. RS-232C/RS-485 CONNECTION METHOD ....................1 1-1 RS-232C OPTION ..................................1 1-2 RS-485 OPTION ..................................2 1-3 SETTING RS-232C OUTPUT & RS-485 OUTPUT ......................... 6 1-4 SETTING HYPERTERMNAL ..............................7 2. CONTROL COMMAND ............................. 9 2-1 CONTROL COMMAND LIST ..............................9 2-2 DETAILS OF VARIOUS CONTROL COMMANDS ......................
  • Page 4 1-1 RS-232C OPTION By using RS-232C interface equipped WGI-400A-02 and WGI-400A-12 Instrumentation Amplifier with Multipurpose Indicator (hereinafter referred to as the WGI-400A), various functions can be set as well as measured values can be read from external devices. 1) Specifications...
  • Page 5 1-2 RS-485 OPTION By using RS-485 interface equipped WGI-400-03 and WGI-400-13, various functions can be set as well as measured values can be read from external devices. 1) Specifications Conforming to RS-485 Initial Set Value Communication method 2-wire half duplex system Transmission speed 2400, 4800, 9600, 19200, or 38400 bps 9600 bps...
  • Page 6 In addition, when the WGI-400A is waiting to receive the signal, outputs between A and B becomes nearly short-circuited. And if transceiver of the external device does not have fail-safe function, the output side of the external devices may not become ‘Hi.’...
  • Page 7 4) Communication Procedures (1) Establishing Communication Since the RS-485 is in a ‘one-to-n’ communication system, the RS-485 communication is established by specifying the ID. Use a software that is capable of sending binary code and input the following commands. Communication establishing command. <ENQ>01<CR>...
  • Page 8 Command transmitted from Command responded by the WGI-400A the PC, sequencer, etc. Transmit command time 2 to 20 ms Response command time 5 ms Figure 2. Command Transmit/Receive Timing...
  • Page 9 (For only RS-485) ‘00’ is invalid. In addition, set the ID different is enabled by connecting in Initial value: ‘0.1.’ from other devices. parallel multiple WGI-400As. Key operation: See “3-9 FUNCTION SELECTING MODE” in the WGI-400A Instruction Manual (Separate Volume)
  • Page 10 1) Startup HyperTerminal. Point to Accessories . Select Communications and then, select Hyperterminal . 2) Set the communication port as shown in the following figure according to the WGI-400A signal specifications. Figure 3. Port Settings Screen 3) For RS-232C Communication is established with the above setting.
  • Page 11 5) Checking Communication State To check whether or not communication is established, input RS line test command. Press the R S - <CR> keys. (Press the Enter key to function as same as the <CR>) If the following response ‘RS-485 <CR><LF> is received, the communication is correctly established. When using the RS-232C, ‘RS-232C <CR><LF>...

  • Page 12: Control Command List

    2. CONTROL COMMAND 2-1 CONTROL COMMAND LIST Type Contents Command Pages Initial Setting 1) RS line test 2 Initialize 3) Output model name, etc. 4) Set transmission mode (Only RS-232C) 5) Setting save command Read 6) Read measured value GDT1 7) Read status 8) Read various set values 9) Display original value...
  • Page 13 3) [SYS] Contents: Output model name, etc. Format: SYS<CR> Parameter: None Return value format: WGI-400A-a, x.xx <CR><LF> CPU version Optionals Model name Description & others: Contents of return value a are as follows. 0: No optional 1: BCD option 2: RS-232C option...
  • Page 14 Spare • To stop the output, set the mode to Mode 10. • If it is not available to set the Mode 10, turn OFF the WGI-400A once and turn ON again. Then, setting the Mode 10 is available.
  • Page 15 • After outputting the indicated value and status, the mode automatically becomes to Mode 10. Contents of the indicated value and status are as same as those of Mode 00. • When the WGI-400A is operating in Mode 00, if the Mode 02 is specified, the following is sent back. ng <CR><LF>...
  • Page 16 2-2-2 Read 6) [GDT1] Contents: Outputs indicated value. Format: GDT1 <CR> Parameter: None Return value format: DI ±xxxxx <CR><LF> Description & others: Return value ±xxxxx is an indicated value with a decimal point. If the indicated value has no decimal point, it is filled with ‘0s’ from the head. Ex.) Return value when the indicated value is ’99.99.’...
  • Page 17 8) [PRRppp] Contents: Outputs set value. Format: PRRppp<CR> Parameter: Sensitivity registering value Smoothing Additional value Analog output set value Hysteresis set value Comparator H set value Comparator L set value Operation pattern Level test Auto-Zero compensation set value 101 RS set value Return value format: None (1) Return value of sensitivity registering value...
  • Page 18 (5) Return value of hysteresis set value xxxxx, yyyyy <CR><LF> Hysteresis set value of comparator L Hysteresis set value of comparator H If the indicated value has no decimal point, it is filled with ‘0s’ from the head. (6) Return value of comparator H ±xxxxx<CR><LF>...
  • Page 19 9) [GOD] Contents: Indicate the original value. (Relevant to panel operation F-01) Format: GOD<CR> Parameter: None Return value format: D0 ±x.xxxx<CR><LF> Description & others: Return value ±x.xxxx is an input value with unit mV/V. 2-2-3 Setting 10) [VCL] Contents: Conduct actual load calibration (Relevant to panel operation F-02) Format: VCL ±xxxxx<CR>...
  • Page 20 13) [SSM] Contents: Set smoothing, moving average and minimum scale. (Relevant to panel operation F-07.) Format: SSM a, b<CR> Parameter: a, b Minimum scale Moving average times 0: 1 0: None 1: 2 1: 2 times 2: 5 2: 4times 3: 10 3: 8 times 4: 20...
  • Page 21 16) [SAO] Contents: Set analog output (Relevant to panel operation F-06) Format: SAOa, ±xxxxx, ±yyyyy<CR> Parameter a, ±xxxxx, ±yyyyy Indicated value in full scale Indicated value when 0 V or 4 mA 0: Voltage output 1: Current output Indicated value with a decimal point. If no decimal point is included, it is filled with ‘0s’...
  • Page 22 19) [LVS] Contents: Set level test (Relevant to panel operation F-25.) Format: LVSa, ±xxxxx <CR> Parameter: a, ±xxxxx Level test value (Setting range: ±9999) Additional function set value 0: Disabled 1: Enabled Indicated value with a decimal point. If no decimal point is included, it is filled with ‘0s’...
  • Page 23 23) [SRS] Contents: Set RS (Relevant to panel operations F-15 and F-16) Format: SRSa, b, c, d, e, f(CR) Contents of parameters are described in the following. a: Baud rate b: Receive delimiter 0: 2400 bps 0: CR/LF 1: 4800 bps 1: CR 2: 9600 bps 3: 19200 bps...
  • Page 24 2-2-5 Others 26) Undefined Command Response Contents: Response responded to undefined command. Return value format: ng<CR><LF> 27) Communication Error Contents: Communication error response is described in the following table. Error Response Framing Error Parity Error Over-Run Error Error A ○ Error B ○...
  • Page 25 2-2-7 Code Table Char Code Char Code Char Code Char Code 0x00 SPACE 0x20 0x40 0x60 0x01 0x21 0x41 0x61 0x02 ” 0x22 0x42 0x62 0x03 0x23 0x43 0x63 0x04 0x24 0x44 0x64 0x05 0x25 0x45 0x65 0x06 & 0x26 0x46 0x66 0x07...

  • Page 26: Bcd Output

    3. BCD OUTPUT By using BCD output equipped WGI-400A-01 (or WGI-400A-11), indicated values can be acquired as BCD coded data. By connecting a sequencer, printer, etc., the WGI-400A can be used for controlling and printing out the acquired data. Pin No. and Signal Name (Connector and Cable)
  • Page 27 3-1 CONNECTING BCD OUTPUT When connecting the WGI-400A to external devices, take care for wiring by referring to aforementioned pin Nos. and signal names as well as the following figure. Max 30 V Inter External ←Max 20 mA Figure 5. Example of Connecting to External Device 3-2 SETTING BCD OUTPUT Function selecting mode F-11 is capable of setting data logic, minus (-) polarity logic, and over logic.

  • Page 28: Signal Timing

    3-3 SIGNAL TIMING When data is read by EOC (End Of Conversion) logic, read BCD data, minus (-) polarity data, and over data within 10 msec from rising (positive) edge (When data changed to Hi from Lo). When the data is read by reversing the EOC logic, read the BCD data, minus (-) polarity data, and over data within 10 msec from falling (negative) edge (When data changed to Lo from Hi).
  • Page 29 Wiring: See Pin No. and Signal Name (Connector and Cable) in “3. BCD OUTPUT.” 2) BCD Printer Cable for WGI-400A N-44 (Optional) This cable is dedicated for connecting a printer 3402-K01 or 3401-K01 to the WGI-400A. It is used by connecting to printer equipped cable.
  • Page 30 Data Data Data Data Data Data Data 1000 Data 2000 Data 4000 Data 8000 OVER Approx.500 mm Figure 9. Wiring Diagram Reference: When connecting printers 3402-K01 or 3401-K01 to the WGI-400A, set all the BCD output logics to negative logic.