7.10.2 Description of control structure
Image 7.46: Schematic of process controller
7.10.2.1 Control and status word of process controller
The process controller can be activated either with the control word, P 2681[0] -
CON_PRC_CtrlWord, or directly via a digital input (for more information on how to
select a function for the digital inputs, see Section "Digital inputs" on page 303,
"START_PRC(48) = Start process controller” setting).
Bit
Name
Description
0
On
Enabling the process controller
1
Reset
Resets the integral term with a ramp
(
P 2680[1]
)
Table 7.41: Control word P 2681[0]
ID No.: 0842.26B.5-01 Date: 09.2020
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7 Control
The status word, P 2682[0] - CON_PRC_StatWord, indicates the process
controller’s current state.
Bit
Name
Description
0
On
Process controller active
1
ResetIReady
Integral term reset complete
Table 7.42: Status word P 2682[0]
Image 7.47: Process controller state machine
