Omron NT631C manual Connecting to a CS-series Serial Communications Board

Connecting to the RS-232C Port at the Host			Section 4-1
	Using the CPU Unit's Built-in RS-232C Port
	Word #	Setting	Setting Contents
	160	8200	1:N NT Link Mode
	161	000A	Baud rate (standard)
	166	000@	@ = The highest unit number of the connected
			PTs (0 to 7)
	Using the CPU Unit's Peripheral Port
	Word #	Setting	Setting Contents
	144	8200	1:N NT Link Mode
	145	000A	Baud rate (standard)
	150	000@	@ = The highest unit number of the connected
			PTs (0 to 7)

When connecting PTs with model numbers 0, 2, 3, 4, and 5 to the built-in RS- 232C port, for example, set the value 8200 hex to word 160, 000A hex to word 161, and 0005 hex to word 166.

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).

Reference: When using the CX-Programmer to set the high-speed 1:N NT Link, set the communications baud rate to 115,200 bps.

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 connection of RS-232C devices.)

RS-232 port

This is used mainly for connection of RS-232C devices.

(This also supports connection of 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 the peripheral port.

•Set SW5 to OFF (establishing communications in accordance with PLC Setup) when connecting the NT631/NT631C to the RS-232C port.

Connecting to a CS-series Serial Communications Board

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

Note Cannot be used with the CS1D-CPU65H/67H.

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