There are also the following
Feature
bits in the
Feature2
parameter:
Bit
Function
0
1 = Violation of the control deviation is not detected by the block, but rather by Sipart based on
the
LIM
and
TIM
parameters. This requires Sipart to be connected via Profibus PA
1
1 = An alarm module is available whose configuration (
AFct
) and limits (
A1
/
A2
) can be read by
the device
2
Not used
3
1 = The values of
Tim
(monitoring time for control deviation) and
Lim
(trigger threshold for
control deviation) are read out of the Sipart PS2, written into the Sipart PS2, and visualized in the
faceplate
4
Not used
5
Not used
6
1 = Separate evaluation OF bypassed AND simulated interlock signals
For more information about the feature bits please refer to the APL online help.
Displaying auxiliary values
This block provides the standard "Displaying auxiliary values" function that is described in the
APL Online Help.
Alarm delays with two time values per limit pair
This block has the standard alarm delay function "Two time values per limit pair" for limit
monitoring of the feedback and limit monitoring of the manipulated variable difference. This
function is described in the APL Online Help.
The function here relates solely to the limits of the manipulated variable difference.
Digital feedback from the readback value
This block forms a digital position feedback for "Closed" and "Open" from the configured
operating points of the position feedback values
PosDiClose
and
PosDiOpen
.
Operator authorizations
This block provides the standard "Operator authorization" function that is described in the APL
Online Help.
The block has the following permissions for the
OS_Perm
parameter:
Bit
Function
0
1 = Operator may switch to "automatic mode"
1
1 = Operator may switch to "manual mode"
2
1 = Operator may switch to "local mode"
3
1 = Operator can switch to "Out of service" mode
4
1 = Operator can open the valve
5
1 = Operator can close the valve
SIPART PS2 PA
8.1 SipPS2PA
SITRANS Library for PCS 7
276
Function Manual, 05/2019, A5E35351976-11
Summary of Contents for SITRANS PCS 7
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Page 418: ...SITRANS P 10 2 SitraPDr SITRANS Library for PCS 7 418 Function Manual 05 2019 A5E35351976 11 ...
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