PID lag spec zero [CHECK 177]

PID lag spec zero [CHECK 177]

PID Controller Module 1,01,02 Block 1001 has derivative lag spec S15 zero -- derivative component will be ignored

This message means that a PID Controller block has its derivative lag spec S15 set to zero. The derivative term will be applied directly.

If S15 is 0.0, the value 1.0 will be used internally. Also of S14 is 0.0, S15 is ignored.

Error 177.png

With S15 as 0.0, the value of S14 is divided by 1, and the derivative is applied all at once. Therefore There is no lag in effect.

This message shows a potential error in the system configuration, although most such errors prove to be harmless. It should be reviewed and hidden, unless it shows an issue that should be addressed.

Please contact us for help resolving your error messages.