Omron NT631C manual Using the CPU Units Built-in RS-232C Port, Word # Writing Value Settings

Connecting to the RS-232C Port at the Host			Section 4-1
	Using the CPU Unit's Built-in RS-232C Port
	Word #	Writing Value	Settings
	160	8200	NT link (1:N) mode
	161	0000 to 0009 (*1)	Communications baud rate (standard)
	166	000@	@ = The largest model number of the con-
			nected PT (0 – 7)

*1 Set any value between 0000 and 0009 Hex for the communications baud rate. The same baud rate will be used regardless of the value as long as it is between 0000 and 0009 Hex.

Using the CPU Unit's Peripheral Port

Word #	Writing Value	Settings
144	8200	NT link (1:N) mode
145	0000 to 0009 (*1)	Communications baud rate (standard)
150	000@	@ = The largest model number of the con-
		nected PT (0 – 7)

*1 Set any value between 0000 and 0009 Hex for the communications baud rate. The same baud rate will be used regardless of the value as long as it is between 0000 and 0009 Hex.

When connecting PT with its model number 0, 2-5 to the built-in RS-232C port, for example, set the value 8200 Hex to 160 CH, and 0005 Hex to 166CH.

Either set PLC Setup directly from a Programming Device (Programming Con- sole), or transmit the PLC Setup made at a Programming Device (CX-Pro- grammer) to the CPU Unit.

For details on the PLC Setup, refer to the SYSMAC CS Series Operation

Manual (W339) or the SYSMAC CJ Series Operation Manual (W393).

Setting the Front Switches

Set the CPU Unit’s DIP switch to 4 or 5 in accordance with the port NT631/ NT631C is connected to. An example of a CS-series CPU Unit is shown below.

Peripheral port

This is used mainly for connection to the Programming Device. (This also supports the RS-232C unit connection.)

RS-232 port

This is used mainly for connection to the RS-232C unit.

(This also supports the CX-Programmer.)

RUN

ERR/ALM

INH

PRPHL/COMM

SYSMAC CS1G

PROGRAMMABLE CONTROLLER CPU42

OPEN

MCPWR BUSY

OPEN

PERIPHERAL

PORT

DIP switches (inside the battery storage)

•Set SW4 to ON (establishing communications in accordance with PLC Setup) when connecting the NT631/NT631C to a peripheral port.

•Set SW5 to OFF (establishing communications in accordance with PLC Setup) when connecting the NT631/NT631C to a peripheral port.

Connecting to CS-series Serial Communications Board

Serial Communications Board equipped with a RS-232C port for CS1-series CPU Units: CS1W-SCB21(-V1)/41(-V1) (See note.)

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