The setting is made with the
SafePos
parameter for the control valve.
●
SafePos
= 0 means that the control valve closes in the de-energized state (
MV
is set
to
MV_OpScale
.
Low
)
●
SafePos
= 1 means that the control valve opens in the de-energized state (
MV
is set
to
MV_OpScale
.
High
)
●
SafePos
= 2 means that the control valve retains its position in the de-energized state (
MV
remains unchanged)
● The control valve is brought to the neutral position when the auxiliary valve is
closed
FbkAuxVCloseOut
= 1.
Generating instance-specific messages
This block provides the standard "Generate instance-specific messages" function that is
described in the APL Online Help.
Configurable reactions using the
Feature
/
Feature2
parameter
An overview of all the reactions that are provided by the
Feature
parameter is available in
section "Configurable response using the
Feature
I/O" in the APL Online Help. The following
reactions are available for this block at the relevant bits:
Bit
Function
0
Setting the startup characteristics (Page 50)
1
Reaction to the out of service mode (Page 54)
2
Resetting the commands for changing the mode (Page 55)
3
Enabling resetting of commands for the control settings (Page 55)
4
Set switch or button mode (Page 56)
5
Control via auxiliary valve (Page 51)
6
Disabling opening and closing (Page 51)
8
Separate delay times for each alarm (Page 52)
9
Resetting interlock via automatic input signals in automatic mode
10
11
Activating the run time of feedback signals (Page 52)
15
Neutral position manipulated variable takes effect with "out of service" operating mode
16
Neutral position manipulated variable takes effect at startup
17
Enabling bumpless switchover to automatic mode for valves, motors, and dosers (Page 52)
21
Enabling bumpless switchover to automatic mode for valves, motors, and dosers (Page 52)
22
Update acknowledgment and error status of the message call (Page 60)
24
Enabling local operating permission (Page 60)
25
Suppress all messages if MsgLock = 1
26
Reaction of the switching points in "Out of service" mode
27
Interlock display with LocalSetting 2 or 4
28
Disabling operating points (Page 61)
29
Signaling limit violation (Page 62)
SIPART PS2 HART
7.1 SipPS2HA
SITRANS Library for PCS 7
Function Manual, 05/2019, A5E35351976-11
205
Summary of Contents for SITRANS PCS 7
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