Siemens PGC 302 Edition II - Problems and Errors; Faulty communication with the chromatograph

Problems and errors
PROBLEMS AND ERRORS
Faulty communication
with the chromatograph
When an operation is started, a check is carried out to
establish which chromatographs are connected and
switched on. If no chromatographs reply, the message
No analyzer responding appears and the
MS-DOS
prompt.
The selection display appears if at least one chromato-
graph responds. Select the function Select PGC. The dis-
play indicates for each chromatograph whether it is online
or offline. Press the key [
F10: Actual. GC list
].
If the associated chromato-
graph still refuses to re-
spond, the following checks
are useful:
Possible causes:
*
The baud rate or
the interface is
incorrectly set in
the control unit or
the chromatograph
*
The incorrect
participant number
is set on the
chromatograph
Is the chromatograph
switched on?
Press RESET button
on PCPU-2 upwards
briefly
NO
YES
YES
Check the
cable connections
On the chromatograph
*
on interface SER.2
On the control unit
*
on interface :COM1
or :COM2
Remedy:
*
Test PCPU-2
Check communication
*
Boot the control unit
(Reset)
*
Then type:
CD \PCPU-2
[Return]
SCANPGC
[Return]
NO
YES
NO
Possible causes:
*
Connection cable is
faulty or incorrect
*
Switches or jumpers
on the PCPU-2 are
incorrectly set
*
An incorrect
interface driver has
been programmed
*
Faulty interface:
:COM1 or :COM2
SER.1 to SER.4
Remedy:
*
Eliminate fault, see
register
Installation
Remedy:
*
Reinstall operating
software
*
Set participant
number correctly
Does the
chromatograph
respond ?
Does
the green lamp
now flash ?
Does
the green lamp
on the PCPU-2
flash ?
SER.4 SER.3
TIMEOUT
RESET
PROG.
X 16 Station X 1 RUN
SER.4 SER.3 SER.2 SER.1
Problems and errors
18
2PROBLEM.CHP, Stand Dezember 22, 1999