Micromod MOD: 1800P - MOD 30ML Identity Module (Version 2) PID and Ramp/Soak Functions User Manual
Page 33
Continuous Control Functions
PID CONTROL BLOCK
2-27
67
Control Mode (CMS) ..........................................................................................................CWR
This is the active controller mode. The controller mode can be represented as a separate
output and setpoint mode, or singly as a controller mode. If controller mode is used, the
following conditions are checked:
•
A remote setpoint source must be configured
•
Allowed output modes and allowed setpoint are set to M.A and L.R by the configurator
•
Setpoint and output modes, restart modes and allowed modes may not be entered by the
user
•
Setpoint and output modes and restart modes take on values based on the user entered
value for controller mode/restart mode. These values are:
Controller Mode
Output Mode
Setpoint Mode
CASCADE
AUTO
REMOTE
AUTO
AUTO
LOCAL
MANUAL
MANUAL
Don’t Care
TRACK
TRACK
Don’t Care
The control mode states are:
MANUAL
0
The active control mode is manual.
AUTO
1
The active control mode is auto.
CASCADE
2
The active control mode is cascade.
TRACK
3
The active control mode is track (track input signal is asserted and
track value is copied to the output).
FAULT
5
A FAULT mode is entered when the block mode cannot be
determined (e.g., when track command input quality is bad), and can
only be cleared by an operator command.
N/A
15
Configurator entry when setting mode model to SP/OP MODE only.
68
Control Mode Status Quality (CMSQ)............................................................................. – WR
Control mode status quality is determined by the block state and the mode model.
GOOD
0
Quality when the block is RUN or HOLD and the mode model is
control mode.
BAD
1
Quality when the block is OFF or the mode model is setpoint/output
mode.
69
Control Mode Command (CMC) .......................................................................................– – R
The control mode command is the mode to which the controller returns after leaving TRACK.
If you are in Track and want to return to a control mode other than the value indicated here,
you must write to the Controller Mode (CMS) whose value will then be reflected here.
MANUAL
0
Controller returns to MANUAL after leaving TRACK.
AUTO
1
Controller returns to AUTO after leaving TRACK.
CASCADE
2
Controller returns to CASCADE after leaving TRACK.