Siemens S5-135U/155U appendix Maximum cycle monitoring time has been exceeded, Cause

Models: S5-135U/155U

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CPUs, Memory Cards, Memory Submodules, Interface Submodules

ADF LED

on

The user program has referenced an I/O address in the process image under which no module is inserted.

ZYK LED

on

The maximum cycle monitoring time has been exceeded.

BASP LED

on

Command output is inhibited and the digital outputs will be directly switched to the safe state.

A detailed description of interrupt and error handling can be found in the CPU 928B -3UB21 Programming Guide.

LED SI1

LED SI2

Cause

on

on

off

off

on

off

on

off

No communication possible at both interfaces. Internal error.

SI1:

No communication possible.

Internal error.

SI2:

If used, interface is initialized and ready.

SI1:

Interface is initialized and ready.

SI2:

No communication possible.

Wrong interface submodule inserted or wrong parameters for interface or internal error.

First interface and, if used, second interface are initialized and ready.

5-38

System Manual

C79000-G8576-C199-06

Page 178
Image 178
Siemens S5-135U/155U appendix Maximum cycle monitoring time has been exceeded, Cause