Chapter 7 Temperature Measurement Module AS04/08TC
7- 21
Operand Data type Function Setting range Description
connected and counted and each type
of modules should be included in the
count.
CH DWORD/DINT Channel number
Channel number for PID algorithm, e.g.
channel 1 is number 1 for PID
algorithm and channel 2 is number 2
for PID algorithm and so forth.
UPD ATE BOOL
Update PID
parameters
True：Update PID related parameters
in the module, such as
PID_RUN~CYCLE.
False: After updating is complete, it
refreshes to False.
PID_RUN BOOL
Enabling the PID
algorithm
True: use the PID algorithm.
False: reset the output value (MV) to 0,
and stop using the PID algorithm.
SV DWORD/DINT Target value -32768~32767 Target value
PID_MODE DWORD/DINT PID control mode
0: Automatic control
When PID_MAN switches from True
to False, invoke the output value
(MV) in the automatic algorithm.
1: Auto tuning the parameters for the
temperature control. After tuning is
done, the sysem switches to auto
control mode (PID_MODE is set to
0) and fill in the appropriate
parameters (Kc_Kp, Ti_Ki, Td_Kd,
Tf, ALPHA and BETA)
Note: when the mode is set to 1, auto
tuning the parameter, you cannot
use numerical value to set up.
PID_MAN BOOL PID A/M mode
True: Manual
Output the MV according to
MOUT. This setting has no effect
when PID_MODE is set to 1.
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