Diagnostic Byte For Battery And Load Voltage - Siemens SIMATIC S5-95F Manual

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Error Diagnosis and Elimination
Erasing Cycle Time Statistics Data
Cycle time statistics data is erased
by an overall reset
by setting bit 6 in the control byte
Starting the Recording of Cycle Time Statistics Data
The recording of cycle time statistics data is started or resumed
when the S5-95F is set to RUN
by resetting bit 7 in the control byte with the programmer's "Output Address" function
Stopping the Recording of Cycle Time Statistics Data
The recording of cycle time statistics data is stopped
when a counter reaches its maximum value of FF00
by setting bit 7 in the control byte with the programmer's "Output Address" function
Note
In safety and quasi-safety mode, you cannot control the cycle time statistic when the S5-
95F is at RUN. The operating system starts the recording of cycle time statistics data in
its RESTART routine, and the function remains active.
15.8

Diagnostic Byte for Battery and Load Voltage

You can evaluate the following by querying diagnostic byte IB 35:
The state of the backup battery
The state of the load voltage for onboard DIs/DQs
The state of the load voltage for counters and interrupt inputs
Diagnostic Byte IB 35
7
6
5
4
15-22
3
2
1
0
H
0: Voltage for counters/interrupts OK
1: Voltage for counters/interrupts failed
0: Voltage for onboard connectors OK
1: Voltage for onboard connectors failed
0: No battery backup
1: Battery backup OK
S5-95F
EWA 4NEB 812 6210-02

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