<Appendix 5. PID Block>
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IM 01E21A02-03EN
A5.12 External-output Tracking (LO)
External tracking is the action of outputting the set value of the operation output (TRK_VAL).
External tracking functions when the block mode is LO.
The flow of the processing is shown below.
TRK_SCALE
OUT_SCALE
TRK_VAL
OUT
TRK_IN_D
LO mode
PID control
computation result
FA0104.EPS
To change the block mode to LO:
Set Track Enable in CONTROL_OPTS.
If TRK_IN_D is set to true, the block mode becomes LO.
However, to change the block mode from Man to LO, both Track Enable and Track in Manual
must also be specified in CONTROL_OPTS.