Omron CS1W-LC001 Operation Manual page 133

Exchanging Data with the CPU Unit
Example
Example
To perform processing on the Loop Control Unit according to the run
status of the CPU Unit
To perform specific processing on the Loop Control Unit according to the run
status of the CPU Unit, use the Step Ladder Program block to perform the
required processing taking the following run status (ITEM007 to ITEM011,
ITEM013) of the System Common block as the input conditions.
To indicate stop when the CPU Unit is in the PROGRAM mode
To forcibly stop running of the Loop Control Unit when the CPU Unit is in the
PROGRAM mode, input ITEM013 (PROGRAM mode) of the System
Common block (Block Model 000) as the run status of the CPU Unit, and set
ITEM014 (run/stop command) of the System Common block to 0 (stop) by
the Step Ladder Program block (Block Model 301) and the ITEM Setting
blocks (Block Models 171 and 172).
System Common
blocks
013
Note When ITEM014 (run/stop command) of the System Common block is set to
0, the Loop Control Unit will not start to run as it is even if the CPU Unit
operation mode is set to RUN or MONITOR. To resume running of the Loop
Control Unit, ITEM014 (run/stop command) of the System Common block
must be set to either 1 (hot start) or 0 (cold start).
To indicate switching to the preset MV value of PID control or MV hold in the
System Common block
Likewise, to forcibly set the MV (manipulated variable) to a specific value
from the Advanced PID block when the CPU Unit is in the PROGRAM mode,
input ITEM013 (PROGRAM mode) of the System Common block as the run
status of the CPU Unit, and set the preset MV switch (ITEM080) or the MV
hold switch (ITEM082) of the Advanced PID block to ON.
System Common
block
013
Step Ladder ITEM Setting block
Program block
Step Ladder Advanced PID
Program block block
080/082
Section 3-3
System Common
blocks
014 014
115