Omron CQM1 User Manual

38
Nomenclature Section 2-1
CQM1-G7N01 Output Master
Front View
Indicators
Note The positive and negative terminals of the transmission terminals 1 and 2 are
shorted internally.
Transmission terminals 1 and 2 can be connected in any order.
Terminal screws: M3
(Optimum tightening torque: 0.5 N • m)
Indicators (see following table)
+
–
+
–
Transmission terminal 1
For connection of transmission cable from
Master or Expansion Master.
Transmission terminal 2
For connection of transmission cable to next
Expansion Master or Slave.
(see page 44)
(see page 44)
Name Color Function
RDY Unit Ready Green Lit when power is on and if CQM1H/
CQM1 recognizes a Master.
OUT 1CH OUT Mode Orange Lit while number of outputs set to 1
word (16 points). Not lit when set to 2
words (32 points).
ADR No.2 Unit 2 Orange Lit when Unit 2 set. Not lit when Unit 1
set.
T/R Transmitting Red Flashes during transmission with power
turned on. Lit when there is a transmis-
sion error. Not lit when there is an error
in the Expansion Master.

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