Micromod RetroPAK: SLC Configuration Manual - Manual (Page 303)

Command Series Migration to MOD 30ML
Function Code 156 – PID with Local SP
To change the value of the Derivative Lag Constant (S15):
Open the PID block and open the Control tab. Change the Input Filter Type to Pre-act,
User. Type a value in floating point units in the Input Filter Time field.
See figure below:
Figure 156 .7.
Function Code
156
PID with Local SP
The filter time in minutes (floating point value) when USER is specified as the filter type.
Otherwise, it is 0.0.
0.0 = no filtering (last sampled value is the input value)
1.0 = 1 minute
1000.0 = 1000 minutes (maximum value)
Note that exceptionally large values tend to maintain the previous value whereas very
small values tend to maintain the most recent sampled value.
156 - 9