Siemens SITRANS PCS 7, Function Manual

Page: 58 / 850

The configuration may be for example:
● Units
● Scale
● Warning limit, alarm limit, and hysteresis.
● Setpoint and compensation.
Note
The configuration data is read by means of acyclic services. At each Profibus cable only 8
acyclic services can be performed simultaneously. So it is possible that the execution (for
example after a return of the Profibus cable) of the data is done with a noticeable delay, if all
participants read out their configuration data at the same time. So do not set the
Feature
bit
8 if more than 8 participants use acyclic services and update the configuration data after a
change with the parameter view in the faceplate.
Bit = 0: The configuration data is not read out automatically at restart of the control (OB100) and
return of the rack (OB86). Changed data have to be read out using the parameter view in the
faceplate.
Bit = 1: The configuration data is read out automatically at restart of the control (OB100) and
return of the rack (OB86).
4.18 Exiting local mode
Feature bit
Number of the
Feature
bit: 10
Reaction to exiting local mode
Use this
Feature
bit to define how the "Local mode" is to be exited with
LocalSetting = 1
or
LocalSetting = 2
and if the mode is not specified by
AutMod1Li
or
ManMod1Li
or
AutMod2Li
or
ManMod2Li
.
Default setting is 0
Bit = 0: Exiting local mode in manual mode (bumpless because the control signals are
continuously adjusted).
Bit = 1: When local mode is exited, the mode changes back to the last mode that was active
prior to local mode (not bumpless).
For more detailed information, refer to the description of Local mode of the Standard APL
blocks.
Configurable response using the Feature I/O
4.18 Exiting local mode
SITRANS Library for PCS 7
58
Function Manual, 05/2019, A5E35351976-11