
2-5
2 Initial Settings and Allocations of Device Variable for CJ-series Unit
CJ-series Serial Communications Units Operation Manual for NJ-series CPU Unit(W494)
2-1 Com
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Precautions for Safe Use
Do not connect the Pin 6 (+5-V power supply) of the RS-232C port on the Unit to any external
device other than an NT-AL001 Link Adapter. Otherwise, the external device and the Serial Com-
munications Unit may be damaged.
Use the OMRON Cables specified in this manual or make your own cables. Do not use commer-
cially available RS-232C cables sold for personal computers. Otherwise, the external device and
the Serial Communications Unit may be damaged.
The following cables are provided for connection to NT-AL001 Link Adapters. We recommend that
you use these cables.
NT-AL001 connecting cables:
XW2Z-070T-1 (0.7 m)
XW2Z-200T-1 (2 m)
Applicable Connectors
Plug: XM2A-0901 (manufactured by OMRON) or equivalent
Hood: XM2S-0911-E (manufactured by OMRON) or equivalent
One plug and one hood are provided for each port.
Recommended Cables
UL2464 AWG28
×
5P IFS-RVV-SB
AWG28
×
5P IFVV-SB
UL2464-SB (MA) 5P
×
28AWG (7/0.127)
CO-MA-VV-SB 5P
×
28AWG (7/0.127)
Cable length: 15 m max.
z
RS-422A/485 Port
Protocol
Protocol macro
Communications
method
Full-duplex or half-duplex
Synchronous mode
Start-stop synchronization (asynchronous mode)
Baud rate
1200/2400/4800/9600/
19200/38400/57600/115200/230400 bps
Connection
configuration
1:N (N: 32 Units max.)
Communications
distance
500 m max. (The total combined cable length is 500m
max. T-branch lines must be a maximum of 10m long.)
Interface
Complies with EIA RS-485
Protocol
No-proto-
col
Serial Gateway
Modbus-RTU
Communications
method
Full-duplex
---
---
Synchronous mode
---
---
---
Baud rate
1200/2400/4800/9600/19200/38400/57600/115200/230400 bps
Connection
configuration
1:N (N: 32 Units max.)
Communications
distance
500 m max. (The total combined cable length is 500m max. T-branch lines must be a
maximum of 10m long.)
Interface
Complies with EIA RS-485
Содержание CJ1W-SCU22
Страница 192: ...4 Using Protocol Macros 4 56 CJ series Serial Communications Units Operation Manual for NJ series CPU Unit W494...
Страница 250: ...6 No protocol Mode 6 22 CJ series Serial Communications Units Operation Manual for NJ series CPU Unit W494...
Страница 460: ...A Standard System Protocol R 126 CJ series Serial Communications Units Operation Manual for NJ series CPU Unit W494...
Страница 473: ...Index 1 CJ series Serial Communications Units Operation Manual for NJ series CPU Unit W494 I Index...