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CJ1W-SCU31-V1 Omron Programmable Controller CJ1W-SCU31-V1 CPU Serial Communication Unit.
Omron Programmable Controller CJ1W-SCU31-V1 CPU Serial Communication Unit. PLC/Touch Screen Model No: CJ1W-SCU31-V1. The Serial Communications Units That Enable High-speed Connections with External Devices. This unit is available for CJ/NJ controller.
Description
PRODUCT INFORMATION OF Omron Programmable Controller CJ1W-SCU31-V1 CPU Serial Communication Unit.
| Communications mode | Half-duplex (Full-duplex for slave-initiated communications) | ||
|---|---|---|---|
| Synchronous mode | Start-stop synchronization (asynchronous mode) | ||
| Baud rate *1 | RS-232C port and RS-422A/485 ports: 1,200/2,400/4,800/9,600/19,200/38,400/57,600/115,200/230,400 bps *2 Default setting: 9,600 bps |
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| Communications distance *1 | RS-232C port: 15 m max. *3 RS-422A/485 Port: CJ1W-SCU[]1-V1 500 m max. (total cable length: 500 m max., T-branch branch lines: 10 m max.) CJ1W-SCU[]2 1,200 m max. (total cable length: 1,200 m max., Multidrop connections are possible. However, maximum cable length is 500 m if the NT-AL001 is used for RS-422A-485 connections.) |
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| Connection configuration | RS-232C port: 1:1 (1:N (N = 32 Units max.) is possible using an Converting Link Adapters.) RS-422A/485 port: 1:N (N = 32 Units max.) |
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| Number of connected Units | 32 Units max. (unit numbers 0 to 31; unit number 0 is set for 1:1 connection) | ||
| Frame structure | C-mode commands | Header: @, address: (host link unit number) 0 to 31 (BCD), data: header code + text, error check code: FCS, terminator: * +CR |
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| FINS commands | Header: @, address: (host link unit number) 0 to 31 (BCD), data: header code (always “FA”) + FINS header + FINS command + text, error check code: FCS, terminator: * +CR |
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| Error check codes | Vertical parity: Even, odd. or none FCS (horizontal parity converted to ASCII) |
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| Command flow and support | Command flow | Commands | Contents |
| Host computer to Controller |
C-mode commands | 1:1 or 1:N communications with directly connected Controller *4 |
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| FINS commands (in Host Link protocol) |
1:1 or 1:N communications with directly connected Controller. |
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| Controller to host computer |
FINS commands (in Host Link protocol) |
Communications using SEND(090), RECV(098), and CMND(490) from CPU Unit. *5 |
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