Omron CPM1A operation manual 2 I/O Terminal and IR Bit Allocation, CPU Units, Expansion I/O Units

CPM1A Features and Functions Section 1-1

Expansion Memory Unit The CPM1-EMU01-V1 Expansion Memory Unit is a program loader for small- size or micro PLCs. Using the CPM1-EMU01-V1, simple on-site transfer of user programs and data memory is possible with PLCs.

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1-1-2 I/O Terminal and IR Bit Allocation

The following table shows which IR bits are allocated to the I/O terminals on the

CPM1A’s CPU Units and Expansion I/O Unit.

CPU Units

Number of I/O terminals on			10		20		30		40
the CPU Unit
Power supply			AC	DC	AC	DC	AC	DC	AC	DC
Model	Relay output		CPM1A-	CPM1A-	CPM1A-	CPM1A-	CPM1A-	CPM1A-	CPM1A-	CPM1A-
number			10CDR-A	10CDR-D	20CDR-A	20CDR-D	30CDR-A	30CDR-D	40CDR-A	40CDR-D
	Tran-	Sink	---	CPM1A-	---	CPM1A-	---	CPM1A-	---	CPM1A-
	sistor	type		10CDT-D		20CDT-D		30CDT-D		40CDT-D
	output
		Source	---	CPM1A-	---	CPM1A-	---	CPM1A-	---	CPM1A-
		type		10CDT1-D		20CDT1-D		30CDT1-D		40CDT1-D
CPU Unit		Inputs	6 points:		12 points:		18 points:		24 points:
terminals			00000 to 00005		00000 to 00011		00000 to 00011		00000 to 00011
							00100 to 00105		00100 to 00111
		Outputs	4 points:		8 points:		12 points:		16 points:
			01000 to 01003		01000 to 01007		01000 to 01007		01000 to 01007
							01100 to 01103		01100 to 01107

Expansion I/O Units

Unit	I/O	Relay output		Transistor output
			Sink type		Source type
20 I/O	12 inputs	CPM1A-20EDR	CPM1A-20EDT		CPM1A-20EDT1
points	8 outputs	CPM1A-20EDR1
8 inputs	8 inputs		CPM1A-8ED
8 outputs	8 outputs	CPM1A-8ER	CPM1A-8ET		CPM1A-8ET1

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