Siemens SIMATIC S5-95F Manual page 422

S5-95F
Table 15-2. Evaluating System Events in DB254 (continued)
Error No.
(Decimal)
40 Hardware fault in onboard DI
(Error response specified in
DB1: Soft STOP or reaction in
user program)
41 Hardware fault in onboard DQ
(Error response specified in
DB1: Soft STOP or reaction in
user program)
42 Hardware fault on onboard
hardware interrupts
(Error response specified in
DB1: Soft STOP or reaction in
user program)
43 Hardware fault in onboard
counter
(Error response specified in
DB1: Soft STOP or reaction in
user program)
44 Hardware fault on external DI
module
(Error response specified in
DB1: Soft STOP or reaction in
user program)
45 Hardware fault on external DQ
module
(Error response specified in
DB1: Soft STOP or reaction in
user program)
*
FF or 255 means that the bit number could not be ascertained
H D
EWA 4NEB 812 6210-02
Primary
Information
Auxiliary
Information
Byte 2:
Byte no.
Byte 3:
Bit no.*
Byte 5:
Signal group
Byte 2:
Byte no.
Byte 3:
Bit no.*
Byte 5:
Signal group
Byte 2:
Byte no.
Byte 3:
Bit no.*
Byte 5:
Signal group
Byte 2:
Byte no.
Byte 3:
Bit no.*
Byte 5:
Signal group
Byte 2:
Byte no.
Byte 3:
Bit no.*
Byte 5:
Signal group
Byte 2:
Byte no.
Byte 3:
Bit no.*
Byte 5:
Signal group
Error Diagnosis and Elimination
Corrective
Measures
Check load voltage
Replace basic unit
Check load voltage
(voltage including ripple
20 to 30 V)
Check wiring
Replace basic unit
Check load voltage
Replace basic unit
Check load voltage
Replace basic unit
Check load voltage
Replace DI module
Check load voltage
(voltage including ripple
20 to 30 V)
Check module switch
setting (P/M)
Check wiring
Replace module and/or
bus unit
15-15