Omron CQM1 User Manual

12
Nomenclature Section 2-1
2-1 Nomenclature
CQM1-B7A21
Front View
Indicators
Indicators (see following table)
B7A Link Terminal connection terminals 1
For connection of a 16-point output B7A Link Terminal.
External power terminals
Required for transmission with the B7A Link Terminal. Con-
nect a 12- to-24 VDC power supply.
Terminal screws: M3
(Optimum tightening torque: 0.5 N • m)
B7A Link Terminal connection terminals 2
For connection of a 16-point Input B7A Link Terminal.
Name Color Function
RDY Unit ready Green Lit while the CQM1H/CQM1 is supplied with
power.
ERR Input
transmission
error
Red Lit if the B7A Link Terminal for input is mal-
functioning or the B7A Link Terminal for
input is disconnected.
3ms Transmission
delay time
Orange Lit while transmission delay time is set to
RAPID (3 ms). Not lit when set to STAN-
DARD (19.2 ms).
LOAD
OFF
Transmission
error
processing
Orange Lit while transmission error processing is
set to LOAD OFF. Not lit when set to HOLD.
15IN+ERR Input mode Orange Lit while input mode is set to 15IN+ERR.
Not lit when set to 16IN.

Omron CQM1 Specifications

General

Model	CQM1
I/O Capacity	Up to 256 I/O points
Programming Language	Ladder Logic
Timer/Counter	128 timers/counters
Operating Temperature	0 to 55°C
Humidity	10 to 90% RH (non-condensing)
Power Supply	24 VDC or 100-240 VAC
Communication Ports	RS-232C
Memory Capacity	3.2K words
Instruction Set	Basic and advanced instructions
Memory	RAM (battery-backed)
Program Memory	3.2K words
Storage Temperature	-20 to 75°C