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Chapter 1. Overview
Constant value operation: Process control uses the LSP or RSP.
Pattern operation:
Process control uses the pattern SP (the SP is generated from the segment setting stored
in the measuring instrument).
RUN:
Control execution status (the three statuses of RUN, RUN-HOLD, and RUN-END in
the case of pattern operation)
READY:
Control stop status
AUTO:
Automatic operation (This controller automatically determines the MV value.)
MANUAL:
Manual operation (The MV value can be operated manually.)
LSP:
Local SP (The control is performed based on the SP stored into the controller.)
RSP:
Remote SP (The analog input from an external device is used as the SP.)
RUN-HOLD:
Control status in which pattern progression is stopped
RUN-END:
Control status in which pattern progression is stopped at the final point
AT:
Auto tuning (The PID constants are set automatically using the limit cycle.)
Handling Precautions
•
In the case of internal cascade control, it is not possible to switch into pattern
operation.
•
With internal cascade control, the master side (Loop 1) in constant value
operation is fixed in LSP mode for RUN + AUTO modes. It cannot be switched
to the READY, MANUAL, or RSP mode.
•
For the function to select RUN or READY at startup, a value stored in EEPROM,
RUN, or READY can be selected by setting "Loop1 Run/Ready at startup" to
"Loop4 Run/Ready at startup" in the basic action bank.
•
If the version of the MAIN block firmware is earlier than 6.x.x (where x stands
for any number), there is no pattern operation function or Run/Ready at
startup selection function.
