Control Priority In The Event Of An Invalid Input Command; Reaction To The Out Of Service Mode - Siemens SITRANS PCS 7 Function Manual

Configurable response using the Feature I/O

4.11 Reaction to the out of service mode

Bit = 0: The function "Bumpless switchover to automatic mode for valves, motors and dosers"
works when switching via the faceplate and switching using interconnectable inputs AutModLi
and ManModLi (ModLiOp = 1).
Bit = 1: The "Bumpless switchover in automatic mode for valves, motors and dosers" function
only works for switching via the faceplate. Bumping switchover can be activated via the inputs
AutModLi and ManModLi (ModLiOp = 1).
4.10

Control priority in the event of an invalid input command

Feature2 Bit
Number of the Feature2 bit: 3
Control priority in the event of an invalid input command
You can use this function to define the control priority in the event of an invalid input command.
Default setting: 0
Bit = 0: In the event of an invalid input command, the control output is retained.
Bit = 1: In the event of an invalid input command, the control output switches to the "neutral
position".
4.11 Reaction to the out of service mode
Feature bit
Number of the Feature bit: 1
Reaction to the Out of service mode
You can use this Feature bit to define the response of the technological block depending on
the connectable input parameter OosLi = 1 or Oos2Li = 1.
The default setting is 0.
● Bit = 0: The symbol for the "In progress" status (see below) appears in the block icon and in
the faceplate of the assigned technologic block. A change 0-1 in the edge of the input
parameter OosLi or Oos2Li has no further influence on the response of the technological
block, the initial status is retained. No switch to the "Out of service" mode is performed.
● Bit = 1: The mode switches to "Out of service" assuming that the block is "On" or "Manual"
mode. If this is not the case, the mode does not change. The symbol for the "In progress"
(see below) status also appears in the block icon and in the faceplate of the assigned
technologic block regardless of the mode change. No message is output to indicate whether
or not the mode change took place.
The status display for "In progress" appears as follows:
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SITRANS Library for PCS 7
Function Manual, 05/2019, A5E35351976-11