Siemens PROFIBUS PA SIPART PS2 Manual page 140

Care and Maintenance
Byte Bit Meaning for "1"
4 Memory error
5 --
6 Device not initialized
7 Initialization fault
Byte 1 0 --
1 Compressed air supply fault
2 --
3 Restart executed
(after 10 s goes to "0")
4 Restart executed
(after 10 s goes to "0")
5 Maintenance required
6 Invalid characteristic curve
7 Identity number changed
Table 6-2 Diagnostics
.
138
Cause
During operation the memory is
continually checked for check
sum errors and read / write errors.
If an error occurs, this report is
generated.
The initialization run required for
the device to function has not yet
been successfully performed.
The values obtained from the in-
itialization run are unusable
A response time fault has been
detected. Most probably the
compressed air supply has failed
Electrical power connection made
to the device, or a warm start has
been triggered using SIMATIC
PDM or the internal Watchdog
has operated.
The device will be restored to its
factory settings.
The travel integral limit value has
been exceeded by the absolute
travel integral
The parameterized characteristic
curve lacks the necessary mono-
ticity, number of support points, or
the x--values are not at 5% inter-
vals etc., the original characteri-
stic curve will continue to be used.
The parameter "PROFIBUS Iden-
tity Number" has been changed
during cyclic operation. The de-
vice reports the infringement of
the Identity Number and displays
a warning of imminent failure. If
re--started without changing the
equipment configuration the de-
vice will not longer be included in
the cyclic operating data traffic.
NOTE
The device status can be simulated using the SIMATIC PDM (chapter
5.2.1 page 119). This allows the reaction of the automation in the
event of a fault to be checked.
Action
Exchange the electronics.
Perform initialization.
Perform initialization again.
Check relevant parameter
settings.
Check the compressed air
supply, check the supply
connections.
Check the cabling and the
power source.
Perform maintenance and
reset the reports using
SIMATIC PDM.
Check the support points.
Make a change to the equip-
ment configuration data
(change the GSD), so that it is
consistent with the Identity
Number held in the device.
SIPART PS2 PA Manual
A5E00127926-03