Siemens SIMATIC S7 Functional Safety Manual page 121

SM 1226 F-DI 16 x 24 VDC
Table 6- 2
Module hardware fault
Inconsistent firmware
versions between Bus-
24 VDC module supply
24 VDC module supply
voltage too high / too
Sensor supply fault:
For inputs affected by
Sensor supply fault:
For inputs not affected
Module successfully
configured; no errors
Channel deactivated
Channel fault; passiv-
Awaiting reintegration,
Awaiting reintegration,
S7-1200 Functional Safety Manual
Manual, 02/2015, A5E03470344-AA
Module DIAG and 1oo1 input channel LEDs
Description
LED color
I/O bus power off
1
PROFIsafe error
ASIC and F-μCs
voltage off
low
the fault
by the fault
Not configured
ated
module fault
Flashing red and green
channel fault
DIAG LED
Green / red
Off
Flashing red
Flashing red
Flashing red
Flashing red
Flashing red
Flashing red
Flashing red
On green
Flashing green
On green
Flashing red
2
Flashing red
Fail-Safe signal module (SM) diagnostics
6.2 Fault diagnostics
Input
Fault LED
Red
Off
On
Unaffected
Flashing
Off
On
On
Unaffected
Off
Off
Off
On
3
Flashing
3
Flashing
Status LED
Green
Off
Off
Unaffected
Off
Off
Off
Off
Input state 0
Input state 1
Input state 0
Input state 1
Input state 0
Input state 1
Input state 0
Input state 1
Off
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