Connecting to the RS-232C Port at the Host

Section 4-1

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 PC Setup) when connecting the NT631/NT631C to a peripheral port.

Set SW5 to OFF (establishing communications in accordance with PC 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 CS-series CPU Units: CS1W-SCB21(-V1)/41(-V1) (See note.)

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

Allocation DM Area Settings for CPU Unit

Settings are written from the Programming Device (a Programming Console or CX-Programmer) directly into the allocation DM area (system setting area) of the CPU Unit. After the settings are written, they become effective by turn- ing the power ON, restarting the Unit, restarting the communications port, or execution of the STUP command.

In the following, the channel numbers of the allocation DM area and the set- tings are shown.

Allocation DM area (words)

Writing Value

Settings

 

 

 

 

Port 1

Port 2

 

 

 

 

 

 

DM32000

DM32010

8000

Host link mode, 2 stop bits, even parity, data

 

 

 

length 7 bits

 

 

 

 

DM32001

DM32011

0000

Communications speed 9600 bps.

 

 

 

 

 

 

0007

Communications speed 19200 bps.

 

 

 

 

DM32002

DM32012

0000

Transmit delay time 0 ms.

 

 

 

 

DM32003

DM32013

0000

No CTS control Unit No.0 for host link

 

 

 

 

Connecting to a CS/CJ- series Serial Communications Unit

CS/CJ-series Rack-mounting Unit:

CS1W-SCU21(-V1)

CJ1W-SCU21(-V1)/41(-V1)

Setting the Front-panel Switches

Set the unit number of the Serial Communications Unit by using the rotary switch located on the front panel. Set each switch with a flat blade screwdriver so that the values or symbols in the setting value window agree with the fol- lowing.

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Omron NT631C manual Connecting to CS-series Serial Communications Board, Allocation DM Area Settings for CPU Unit