Rules Governing the Use of the S5-115F
S5-115F Manual
Table 10-9. Meaning of the Signal Group Numbers in the Case of Error Tolerance Variants 1 to 4
(Continued)
Response to I/O Error
Signal Group
Number
I/O Error Tolerance
Variant
a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a
a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a
a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a
a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a
a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a
a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a
a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a
a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a
a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a
a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a
4
Error message from the operating system
and
safety response from the user program
and
organizational measures
(e.g. supervised operation)
Standard values in the case of discrepant two-channel
digital signals are generated by
ANDing the two signals.
In the case of a discrepancy of two analog input modules,
the passivation value specified in FB 250 is taken.
PLC STOP
0
Individual passivation
1
(Group) passivation
2 to 26
Error message from the operating system
and
safety response from the user program
and
organizational measures
(e.g. supervised operation)
Standard values in the case of discrepant two-channel
digital signals are generated by
ORing the two signals.
In the case of a discrepancy of two analog input modules,
the passivation value specified in FB 250 is taken.
27
28
You adapt the S5-115F system response to your process by taking the following measures
•
Define an I/O error tolerance variant for the whole system
•
Assign different signal groups when configuring safety-related I/O modules.
Note
The operating system does
not monitor the intervals between I/O errors and the
second error occurrence time.
•
Please note the following in the case of I/O ETV 2 with signal group no. 2 to 28, I/O
ETV 3 with signal group no. 2 to 27 and I/O ETV 4 with signal group no. 2 to 26:
All I/O modules of the relevant signal group are passivated in the relevant signal
group when an I/O error is detected. The first erroneous bit of the I/O word is
entered in the error stack of the error DB.
•
Please note the following in the case of I/O ETV 3 with signal group no. 28 and I/O
ETV 4 with signal group no. 27 and 28:
The I/O modules are
not passivated when an I/O error is detected. The first
erroneous bit of the I/O word is simply entered in the error stack of the error DB.
The error response must be initiated by the user control program.
•
If more than sixteen I/O errors with different addresses are entered in the error
stack when using I/O ETV 3 and 4, the system responds with a PLC STOP due to
accumulated errors.
10-58
EWA 4NEB 811 6148-02