45
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.
System 1
Master (G7M21)
Number inputs: 2 words
Number of outputs: 2 words
Number of output
words setting
Number of input
words setting
Expansion Master (G7N01)
Set as Unit 1
Number of outputs: 1 word
Unit # setting
Number of output
words setting
Expansion Master (G7N11)
Set as Unit 2
Number of inputs: 1 word
Unit # setting
Number of input
words setting
System 2
Master (G7M21)
Number inputs: 2 words
Number of outputs: 1 word
Number of output
words setting
Number of input
words setting
Expansion Master (G7N11)
Set as Unit 1
Number of inputs: 1 word
Unit # setting
Number of input
words setting
CQM1H/CQM1
System 1
I/O Output
System 2
Input
I/O Input
16
points
16
points
Master
Expansion Master
Unit 1
Expansion Master
Unit 2
Master
Expansion Master
Unit 1
Unit
Input word
Output
word
→
→
→
→
→
4-1-2 Precautions
Avoid the following cases, which lead to complex word allocation and wiring con-
nections.
Expansion Master Unit No. Out of Mounting Order
Take care of the allocation of Expansion Master Unit 1 and Unit 2 word address-
es.
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.
Word Allocation
Section 4-1
Содержание CQM1H - 08-2005
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Страница 3: ...CQM1H CQM1Series Dedicated I O Units Operation Manual Revised August 2000 ...
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Страница 74: ...Appendix A Specifications 54 Dimensions Common for Master and Expansion Master Unit mm ...
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