Siemens M7-400 Manuel D’Utilisation
Analog Modules
5-64
S7-400, M7-400 Programmable Controllers Module Specifications
A5E00069467-07
Diagnostic Messages of the Analog Input Modules
The table below gives an overview of the diagnostic messages for the analog input
modules with diagnostics capability.
modules with diagnostics capability.
You can find out which diagnostic messages are possible with which modules in
the Appendix entitled “Diagnostic Data of the Signal Modules”.
the Appendix entitled “Diagnostic Data of the Signal Modules”.
Table 5-46 Diagnostic Messages of the Analog Input Modules
Diagnostic Message
LED
Diagnostics
Effective for
Parameters Can
Be Assigned
Module problem
INTF/EXTF
Module
No
Internal malfunction
INTF
Module
No
External malfunction
EXTF
Module
No
Channel error present
INTF/EXTF
Module
No
External auxiliary supply missing
EXTF
Module
No
Front connector missing
EXTF
Module
No
Module not parameterized.
INTF
Module
No
Wrong parameters
INTF
Module
No
Channel information available
INTF/EXTF
Module
No
Coding key incorrect or missing
INTF
Module
No
Thermocouple connection fault
EXTF
Module
No
STOP operating mode
–
Module
No
EPROM error
INTF
Module
No
RAM error
INTF
Module
No
ADC/DAC error
INTF
Module
No
Hardware interrupt lost
INTF
Module
No
Configuring/parameter
assignment error
assignment error
INTF
Channel
No
Short-circuit to M
EXTF
Channel
Yes
Wire break
EXTF
Channel
Yes
Reference channel error
EXTF
Channel
Yes
Underflow
EXTF
Channel
Yes
Overflow
EXTF
Channel
Yes
User connection not wired
EXTF
Channel
No
Open conductor in + direction
EXTF
Channel
No
Open conductor in – direction
EXTF
Channel
No
Run time calibration error
EXTF
Channel
No
Underrange or overrange
EXTF
Channel
No
Open conductor in the current
source
source
EXTF
Channel
No
User calibration doesn’t
correspond to the parameter
assignment
correspond to the parameter
assignment
EXTF
Channel
No