Data Link Area - Omron CP1H CPU Operation Manual

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Data Link Area

Forcing Bit Status

Links to C200HX/HG/HE,

C200HS, and C200H PLCs

Link Area Initialization

(bits CIO 1000.00 to CIO 1199.15). Words in the Link Area are used for data

links when LR is set as the data link area for Controller Link Networks. It is

also used for PLC Links. Words in the Link Area can be used in the program

when LR is not set as the data link area for Controller Link Networks and PLC

Links are not used.

Data links can be generated automatically (using the same number of words

for each node) or manually. When a user defines the data links manually, any

number of words can be assigned to each node, and nodes can be made

receive-only or transmit-only. Refer to the Controller Link Units Operation

Manual (W309) for details.

Bits in the Data Link Area can be force-set and force-reset.

Link Area words CIO 1000 to CIO 1063 in CP1H CPU Units correspond to

Link Relay Area words LR 0 to LR 63 for data links created in

C200HX/HG/HE(-Z) PLCs. When converting C200HX/HG/HE(-Z), C200HS,

or C200H programs for use in CP1H CPU Units, change addresses LR 0

through LR 63 to Link Area addresses CIO 1000 through CIO 1063.

The contents of the Link Area will be cleared in the following cases:

1. When the operating mode is changed from PROGRAM mode to

RUN/MONITOR mode or vice-versa and the IOM Hold Bit is OFF

2. When the power is cycled

3. When the Data Link Area is cleared from the CX-Programmer

4. When PLC operation is stopped when a fatal error other than an

FALS(007) error occurs. (The contents of the Link Area will be retained if

FALS(007) is executed.)

Linked words

Controller Link Network

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