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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
Diagnostics alarms
Diagnostics messages
A diagnostics message is generated for every fault identified. The DIAG LED on the module
flashes.
There is additionally a channel-specific display of the diagnostics through the corresponding
channel fault LEDs
The diagnostic messages can, for example, be read from the diagnostic buffer of the CPU.
Diagnostic messages are either assigned to an input for specific channels or assigned to all inputs
as a module alarm. For diagnostic messages which affect the entire module, all channels are
DI 8x24...125VDC HA
Equipment Manual, 10/2021, A5E39288633-AD
Structure byte x to x+1 for the channels 0 to 7
Parameters, diagnostics messages and address space
A.3 Diagnostics alarms
37
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