Siemens Sinumerik 810T Instruction Manual Page 61

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11.90 11 Alarms
11.11 Alarm list ACKNOWLEDGE
6158
Timeout with I / O transfer
Cause:
Effect:
Explanation:
Remedy:
Central I/O device no longer signalling
PLC STOP
All I/O modules detected on start-up (If the no. of I/O modules changes
in cyclic operation this alarm appears)
No alarm on failure of +24 V supply!
Check bus connections to I/O submodules
6159
Time exceeded STEP 5
Cause:
Effect:
Explanation:
Remedy:
Maximum runtime in PLC MD 1 exceeded
PLC STOP, dependent on PLC MD 2003 bit 1
Evaluate diagnostic DB
Increase MD 1 CPU load increases
Set MD 2003 bit 6 cycle time increases
Time-optimize PLC program
6160
Runtime exceeded OB2
Cause:
Effect:
Explanation:
Remedy:
Maximum runtime in PLC MD 3 exceeded
PLC STOP, dependent on PLC MD 2003 bit 0
Evaluate diagnostic DB
Increase MD 3
Time-optimize OB2
6161
Cycle time exceeded
Cause:
Effect:
Remedy:
Maximum runtime in PLC MD 5 exceeded
PLC STOP
Increase MD 5
Time-optimize PLC program
© Siemens AG 1990 All Rights Reserved 6ZB5 410-0DL02 11–61
SINUMERIK 810 GA3/820 GA3 (IA)
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