Omron NT31 NT31C manual Before making a connection, Below

Connecting to the Host’s RS-422A/485 Port				Section 5-2
		function built in. With the CS1-series and CQM1H, the host link method can be
		used by installing a serial communication board. In addition, some C200HX/HG/
		HE(-Z)E devices have an integral CPU that can be connected in the host link
		method by installing a communication board.
		With the CPM2A and CPM2C, an RS-422A type of 1:1 NT Link can be created
		through a CPM1-CIF11 RS-422A Adapter.
		Check the model and series of the PC and the type of the installed Board or Unit
		before making a connection.
		The host units featuring the RS-422A/485 type host link function and can be con-
		nected to the RS-422A/485 port of the NT31/NT31C are indicated in the table
		below.
	Units with Built-in Host Link Function			CPUs Connectable with	Connectable
PC Series
	Host Link Unit /			Host Link Units or Expansion
			CPU		to
	Communication Board			Communication Board
CS1 series	CS1W-SCB41-E			CS1G-CPU42/43/44/45-EV1	CS1G
				CS1H-CPU63/64/65/66/67-EV1	CS1H
	3G2A6-LK202-EV1			C1000H-CPU01-EV1	C1000H
				C2000H-CPU01-EV1	C2000H
				C200HS-CPU01/03/21/23/31/33-E	C200HS
				C200HS-CPU01/21-EC
					C200HE
				C200HE-CPU11/32/42-E
					C200HE-ZE
	C200H-LK202-V1			C200HE-CPU11/32/42-ZE
					C200HG
				C200HG-CPU33/43/53/63-E
					C200HG-ZE
				C200HG-CPU33/43/53/63-ZE
					C200HX
				C200HX-CPU34/44/54/64-E
					C200HX-ZE
				C200HX-CPU34/44/54/64/65/85-ZE
				C200HE-CPU32/42-E	C200HE
				C200HE-CPU32/42-ZE	C200HE-ZE
	C200HW-COM03/06-EV1			C200HG-CPU33/43/53/63-E	C200HG
				C200HG-CPU33/43/53/63-ZE	C200HG-ZE
C series				C200HX-CPU34/44/54/64-E	C200HX
				C200HX-CPU34/44/54/64/65/85-ZE	C200HX-ZE
	3G2A5-LK201-EV1			C1000H-CPU01-EV1	C1000H
				C2000H-CPU01-EV1	C2000H
	C500-LK203			C1000H-CPU01-EV1	C1000H
				C2000H-CPU01-EV1	C2000H
			CPM1-10/20/30CDR-j
			+CPM1-CIF11		CPM1
			CPM1A-10/20/30/40CDj-j
			+CPM1-CIF11
			CPM2A-30/40/60CDj-j
			+CPM1-CIF11		CPM2A
			(Peripheral port connection)
			CPM2C-10/20jjjjjj-j(*1)		CPM2C
	CQM1H-SCB41			CQM1H-CPU51/61	CQM1H
CV series			CV500-CPU01-EV1	CV500-CPU01-EV1	CV500
	CV500-LK201		CV1000-CPU01-EV1	CV1000-CPU01-EV1	CV1000
(*2)
			CV2000-CPU01-EV1	CV2000-CPU01-EV1	CV2000
CVM1 se-			CVM1-CPU01-EV2	CVM1-CPU01-EV2
	CV500-LK201		CVM1-CPU11-EV2	CVM1-CPU11-EV2	CVM1
ries (*2)
			CVM1-CPU21-EV2	CVM1-CPU21-EV2
SRM1			SRM1-C02-V1+CPM1-CIF11		SRM1

*1: Use a CPM2C-CN111 or CS1W-CN114/118 Connecting Cable, CPM1-CIF01 RS-232C Adapter, or CPM1-CIF11 RS-422A Adapter to connect.

*2: CPUs of CVM1/CV-series PCs without the suffix -EVjcannot be connected.

The host link method cannot be used when an NT31/NT31C is connected using

RS-485. To use the host link method, connect by RS-422A.

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