PID Controller Module 1,01,02 Block 1001 has all active tuning constants zero

A controller has its gain constants all zero, which will force the output to be 0.0.

• APID: Advanced PID Controller [FC156]
  • S11 is the overall gain multiplier K and must never be 0.
  • S12, S13 and S14 are the KP, KI and KD constants and must never all be 0 (unless one or more of these specs are adapted, in which case there will be no message).
  • S12 must never be 0 if the algorithm is "classical", not "noninteracting", that is, if S18 ends in 0 or 2.
• PID: PID Error Input [FC18] and DEL PID: PID Control (PV and SP) [FC19]
  • S5 is the overall gain multiplier K and must never be 0.
  • S6, S7 and S8 are the KP, KI and KD constants and must never all be 0 (unless one or more of these specs are adapted, in which case there will be no message).

The effect of either of the above sets of conditions is that the output is 0.00.

This message is likely to show an error in the system configuration. It should be reviewed. The issue raised may be in unused logic or graphics, or have other realities that make it a non-issue.

Please contact us for help resolving your error messages.