Power failure recovery – Watlow ANASOFT User Manual
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74 ANASOFT User’s Guide
Appendix C: ANASOFT-RS
The only r/s parameter you can edit in the loop face plate is the r/s
status. You can edit it in the Overview Edit screen or the Loop Setup
screen. The status is only displayed and can be edited if a profile has
been assigned to the loop. The status you can select depends on the
current status as described below:
Power Failure Recovery
You can set ANASOFT-RS to recover automatically from system
power failures, and continue any previously running r/s cycles, by
setting the power failure recovery action to upload the last running job.
The 8LS controllers, when powering up, automatically continue with
any previously running cycle as recorded in the battery backed memory,
and ANASOFT-RS will display the current cycle information if the job
is uploaded at start up. If the last running job is downloaded at start up,
any previously running cycles will be terminated and set to the Start
state.
Status
Description
Start
The loop is ready to start running a cycle.
Run
The loop is in cycle and the cycle clock is running.
Hold
The loop is in cycle but the clock isn’t running. You must con-
tinue the cycle to start the clock.
Tol Wait
The loop is in cycle but the clock isn’t running because the pro-
cess variable is out of setpoint tolerance.
Trg Wait
The loop is in cycle but the clock isn’t running because the trig-
ger’s conditions are not being met.
Current Status
Selectable Status
Start
Run
Run
Hold, Start
Hold
Continue, Start
Tol Hold, Trg Wait
Start, Hold