Omron CQM1 Operation Manual page 59

Switch Settings
CQM1-G7N11 Input Expansion Master
All pins are factory-set
to OFF
OFF ON
Pins 3 and 4
Pin 2
Pin 1
CQM1-G7N01 Output Expansion Master
All pins are factory-set
to OFF
OFF ON
Pins 3 and 4
Pin 2
40
2. Disconnection between Slaves:
HOLD operative for Slaves connected to Master. Inoperative for output
Slaves after the discontinuity. These statuses determined by the output
Slave HOLD/HOLD OFF setting.
Not used (set to OFF).
Expansion Master Unit # Setting:
Sets the Expansion Master Unit Number
Setting
ON Expansion Master is Unit 2
OFF Expansion Master is Unit 1
Input Word Setting:
Sets the number of input words (points) occupied at the Expansion Master.
Setting
ON One word (16 points) of inputs.
OFF Two words (32 points) of inputs.
Note 1. Turn the CQM1H/CQM1 power off before setting the DIP switch. The
switch settings are enabled when the CQM1H/CQM1 power is turned on.
2. Use a different Unit number for each of the two Expansion Masters used
with a single Master.
3. 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.
Not used (set to OFF).
Expansion Master Unit # Setting:
Sets the Expansion Master Unit Number
Setting
ON Expansion Master is Unit 2
OFF Expansion Master is Unit 1
Description
Description
Description
Section 2-2