Omron CQM1 Operation Manual page 51

System Configuration
Configuration as a Single System with Expansion Masters
CQM1H/CQM1
RS-485, 200 m max.
G730-VI (input model)
Switch Sensor
32
Master (32 input points/32 output points max.)
Expansion Master Unit 1 (max. 32 input points or 32 output points)
Expansion Master Unit 2 (max. 32 input points or 32 output points)
G730-VO (output model)
Lamp
Note 1. Use one Master in any system. The systems must be separated if multiple
Masters are used. (See page 33)
2. Up to two Expansion Masters can be connected to each Master.
3. When two Expansion Masters are used, set one as Unit 1 and the other as
Unit 2. The Slave address for Unit 2 can only be used for an 8-point or 16-
point Slave. It cannot be used for a 4-point Slave.
4. The combination of one Master with two Expansion Masters allows control
of up to 128 points.
5. The maximum number of connectable Slaves is 24 4-point Slaves and 4
8-point Slaves, making a total or 28 Units.
G730-RI (input model) G730-RO (output model)
Switch
Section 1-2
Valve