Omron CJ - PROGRAMMING MANUAL 12-2009 Programming Manual page 349

Serial Communications
Allocated Words
Complete Link Method
Address
CIO 3100
Serial PLC
Link Words
CIO 3199
accessed using common ladder programming. The areas allocated for the
unit numbers of the PT or Polled Units not present in the network are unde-
fined in the Polling Unit only.
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.
Polling Unit Polled Unit No.0
Local area
Polled Unit
No.0
Polled Unit
No.1
Undefined
Polled Unit
No.3
(Not used.)
(Not used.)
(Not used.)
(Not used.)
Link words 1 word
Polling Unit CIO 3100
Polled Unit No. 0 CIO 3101
Polled Unit No. 1 CIO 3102
Polled Unit No. 2 CIO 3103
Polled Unit No. 3 CIO 3104
Polled Unit No. 4 CIO 3105
Polled Unit No. 5 CIO 3106
Polled Unit No. 6 CIO 3107
Polled Unit No. 7 CIO 3108
Not used. CIO 3109
to
CIO 3199
Polled Unit No.1
Polling Unit Polling Unit
Local area Local area
(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.)
2 words 3 words
CIO 3100 to CIO 3100 to
CIO 3101 CIO 3102
CIO 3102 to CIO 3103 to
CIO 3103 CIO 3105
CIO 3104 to CIO 3106 to
CIO 3105 CIO 3108
CIO 3106 to CIO 3109 to
CIO 3107 CIO 3111
CIO 3108 to CIO 3112 to
CIO 3109 CIO 3114
CIO 3110 to CIO 3115 to
CIO 3111 CIO 3117
CIO 3112 to CIO 3118 to
CIO 3113 CIO 3120
CIO 3114 to CIO 3121 to
CIO 3115 CIO 3123
CIO 3116 to CIO 3124 to
CIO 3117 CIO 3126
CIO 3118 to CIO 3127 to
CIO 3199 CIO 3199
Section 6-3
Polled Unit No.3
Polling Unit
Local area
(Not used.)
(Not used.)
(Not used.)
(Not used.)
(Not used.)
(Not used.)
(Not used.)
to 10 words
CIO 3100 to
CIO 3109
CIO 3110 to
CIO 3119
CIO 3120 to
CIO 3129
CIO 3130 to
CIO 3139
CIO 3140 to
CIO 3149
CIO 3150 to
CIO 3159
CIO 3160 to
CIO 3169
CIO 3170 to
CIO 3179
CIO 3180 to
CIO 3189
CIO 3190 to
CIO 3199
309