Omron NT31 NT31C manual Serial Port a, Serial Port B, Wiring for Other Connections

Connecting to the RS-232C Port at the Host Section 4-1

Serial Port A

16

59

NT31/NT31C

	Abbreviation	Pin
		number
	FG	Connector
		hood
		1
	SD	2
RS-232C	RD	3
	RS
interface		4
	CS	5
	+5V	6
		7
		8
	5G	9

(9-pin type)

114

PC (host link unit)

Shielding wire	Pin	Abbreviation
	number
	1	FG
	2	SD
	3	RD
	4	RS	RS-232C
*	5	CS	interface
	6	–
	7	5G
	8	–
	–	–
	–	–
	–	–
	–	ER

(25-pin type)

1325

*For units that have a CTS setting selector switch, RS and CS do not have to be shorted if this switch is set to 0V.

Serial Port B

114

1325

NT31/NT31C

	Abbreviation	Pin
		number
	FG	Connector
		hood
	–	1
	SD	2
	RD	3
RS-232C/ RS		4
422A/485	CS	5
interface
	–	6
	SG	7
	–	8
	TRM	9
	RDB (+)	10
	SDB (+)	11
	–	12
	–	13
	–	14
	SDA (–)	15
	RDA (–)	16
	–
	–	–
	RSB (+)	23
	RSA (–)	24
	–	25

(25-pin type)

PC (host link unit)

Shielding wire	Pin	Abbreviation
	number
	1	FG
	2	SD	1	14
	3	RD
	4	RS	RS-232C
	5	CS	interface
*
	6	–

7SG

8–

––

––

––

––

20 ER

(25-pin type)

1325

Wiring for Other Connections

*For units that have a CTS setting selector switch, RS and CS do not have to be shorted if this switch is set to 0V.

Applicable units :

CV500-LK201 (communication port 2) CS1W-SCU21

CPM1-10CDR-jCPM1-20CDR-j

CPM1A-10CDj-jCPM1A-20CDj-j

CPM1A-30CDj-jCPM1A-40CDj-j

CPM2A-30CDj-jCPM2A-40CDj-jCPM2A-60CDj-j

CPM2C-10jjjjjj-jCPM2C-20jjjjjj-jCQM1-CPU21-E

CQM1-CPU41-EV1 CQM1-CPU42-EV1

CQM1-CPU43-EV1 CQM1-CPU44-EV1

CQM1H-CPU11 CQM1H-CPU21

CQM1H-CPU51 CQM1H-CPU61

CS1G-CPU42-E(V1) CS1G-CPU43-E(V1)

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