WattMaster WCC III part 4 - Manual (Page 123)

WCC III Technical Guide 3-119
WCC3.EXE SCREEN DESCRIPTIONS
PID Tuning Screen
Source Stable Hysteresis:
This tells the PID program how much range the source sample stays
in to consider the source sample as stable. For tuning temperature,
one degree is a good value.
Source Crossing Hysteresis:
This tells the PID program how much beyond the <Source
Setpoint> to be considered crossing the <Source Setpoint>
Total Cycle:
This shows the number of tuning cycles that have occurred. At
least four cycles are needed to get enough tuning data to produce
reasonable PID parameters.
Source Peak Value:
This shows the current peak value of the sampling source.
State Time:
This shows how long the tuning stage has been in its current state.
Stable Time:
This shows how long the sampling value has been considered
stable.
Period Time:
This shows the estimated period of the current tuning cycle.
Tuning Direction:
This shows the direction of the tuning process. The direction can
be <Rise> or <Drop>.
Output Timing:
This shows the output is considered <In Delay> or <Not In
Delay>.