Omron CP1L - 12-2007, Operation Manual

Page: 388 / 673

355
Serial Communications
Section 6-3
Example: Polling Unit Link Method, Highest Unit Number: 3
In the following diagram, Polled Unit No. 2 is a PT or a Unit not participating in
the network, so the corresponding area in the Polling Unit is undefined.
Example: Polling Unit Link Method, Number of Link Words: 10
The CPU Unit that is the Polling Unit (either CP1L or CJ1M) sends its data
(CIO 3100 to CIO 3109) to the same words (CIO 3100 to CIO 3109) in all
other CPU Units. The Polled Units send their data (CIO 3110 to CIO 3119) to
consecutive sets of 10 words in the Polling Unit. The Polling Units is a CP1L
CPU Unit in the following example, but it could also be a CJ1M CPU Unit.
(Only the first three Polled Units are shown below.)
Polling Unit Polled Unit No.0 Polled Unit No.1 Polled Unit No.3
Local area Polling Unit Polling Unit Polling Unit
Polled Unit
No.0
Local area Local area Local area
Polled Unit
No.1
(Not used.)
(Not used.)
(Not used.)
(Not used.)
(Not used.)
(Not used.)
(Not used.)
(Not used.)
(Not used.)
(Not used.)
(Not used.)
(Not used.)
(Not used.)
(Not used.)
(Not used.)
(Not used.)
(Not used.)
(Not used.)
(Not used.)
(Not used.)
(Not used.)
Undefined
Polled Unit
No.3
(Not used.)
(Not used.)
(Not used.)
(Not used.)
CP1L CPU Unit
(Polling Unit) CP1L CPU Unit
(Polled Unit No. 0) CP1L CPU Unit
(Polled Unit No. 1)
CJ1M CPU Unit
(Polled Unit No. 2)
No.0
No.1
No.2
No.3
No.4
No.5
No.6
No.7
3100 to 3109
3110 to 3119
3120 to 3129
3130 to 3139
3140 to 3149
3150 to 3159
3160 to 3169
3170 to 3179
3180 to 3189
Serial PLC Link Words
(CIO Area)
Serial PLC Link Words
(CIO Area)
Serial PLC Link Words
(CIO Area)
Serial PLC Link Words
(CIO Area)
3100 to 3109
3110 to 3119
3100 to 3109
3110 to 3119
3100 to 3109
3110 to 3119