Reset - Siemens PROFIBUS PA SIPART PS2 Manual

Simulation of
readbacks
.
5.2.1.7

Reset

Reset to factory
settings
Re-start
(Warm start)
Reset the
PROFIBUS
address to 126
SIPART PS2 PA Manual
A5E00127926-03
Simulation functions are of assistance during commissioning pieces of
equipment and positioner. Process values can be generated without
output of real positional values. Equally the outputs from the alarm
modules and the position value of the Iy module will not be affected by
them. The value range of the simulated process values can be fully ex-
ploited. Faults can also be simulated.
Perform the following settings:
Open the "Simulation readbacks" register.
S
Set the simulation to "Approved".
S
Enter for the desired simulation value a value between 0 and 100%,
S
quality "Good" and status "OK".
Upload the settings into the positioner.
S
The positioner will now control to the master's setpoint, the feedback of
the readback will however show the simulated value.
NOTE
After concluding the simulation, do not forget to restore the value to
"Blocked" again.
If the positioner settings have been changed set so that it can no longer
fulfill its control task, this function allows the factory settings to be re-
stored. All parameters with the exception of the PROFIBUS address
are restored to the factory settings.
The reset is shown in the diagnostics report as "Restart performed".
After this all parameters must be set afresh and an initialization per-
formed.
Warm start permits the positioner to be switched off and restarted. This
means the communication will be broken off and then re-established.
This re-start will be shown by the diagnostic report "Re-start per-
formed". If no measurement value is yet available, the automation and
control system will show the status "Indeterminate, initial value, value
constant".
If no other device in the system has the pre-set address 126, the
PROFIBUS line can be extended to include this positioner whilst the
automation and control systems are running. Following this, the
address of the newly attached device should be changed to another
value.
Care and Maintenance
125