Omron CQM1 - Page 69

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Word Allocation Section 4-1
Connect the transmission cables in series from the Master, regardless of the
Unit number settings.
Expansion Masters Mounted Left of the Master
Take care of the allocation of Master, Expansion Master Unit 1 and Unit 2
word addresses.
If one Expansion Master is used for input and another for output, take care
that the Expansion Master Unit numbers and the Unit 1/Unit 2 Slave address
settings are not reversed.
A 4-point Slave cannot be used as a Unit 2 Slave address.
Connect the transmission cables in series from the Master.
I/O Input
Master
Expansion Master Unit 1 Expansion Master Unit 2
Unit
Input word
Output
word
Input
16
points
16
points
CQM1H/CQM1
I/OOutput
Master
Expansion Master Unit 1 Expansion Master Unit 2
Unit
Input word
Output
word
Input
16
points
16
points
CQM1H/CQM1