Diagnostic Messages; Figure A-1 Structure Of Bytes X To X+1 For Channels 0 To 31 - Siemens SIMATIC ET 200SP HA Equipment Manual

Drivers, parameters, diagnostics messages and address space
A.3 Diagnostic messages
x = 12 + (channel number * 2); with channel number = 0...31
All unused bits and the bits or bytes marked as "reserved" must be set to zero.
You activate a channel parameter by setting the corresponding bit to "1" or the corresponding
value.
Figure A-1
A.3

Diagnostic messages

Diagnostic messages
A diagnostics message is generated for each diagnostics event and the DIAG LED on the I/O
module flashes red or the MT LED lights up yellow.
The diagnostics messages can be read in the diagnostics buffer of the CPU, for example.
Diagnostic messages are assigned either channel-specific to an input or assigned as module
messages to all inputs. All channels are switched off for diagnostics messages that affect the
entire module. Only the corresponding digital input is affected by diagnostics messages, which
refer to individual channels.
Diagnostics mes‐ Error code
sage
Wire break 6
H
32
Structure of bytes x to x+1 for channels 0 to 31
Assign‐
ment
Channel Impedance of encoder circuitry is too
high
Wire break between the module and
sensor
Channel not connected (open)
Meaning
Use another type of encoder or wir‐
ing, for example, use conductors
with a larger cross-section
Connect the cable
•
•
•
Equipment Manual, 10/2021, A5E48262828-AB
Remedy
Disable diagnostics
Connect encoder contact with a
15 kΩ to 18 kΩ resistor.
Switch off wire break check
DI 32x24VDC HA