PROFIBUS DP communication module
9.9 Diagnosis with STEP 7
3RW44 soft starters
178 Manual, 03/2017, NEB535219502000/RS-AB/008
Channel-related diagnostics
Definition
Channel-related diagnostics provides information about channel faults in modules (in this
case: soft starters) and provides details of the identifier-related diagnostics. Channel-related
diagnostics begins after the module status. The maximum length is limited by the maximum
total length of slave diagnostics amounting to 31 bytes. Channel-related diagnostics does not
affect the module status.
Up to 9 channel-related diagnostics messages are possible (see also station status 3, bit 7).
Channel-related diagnostics
Channel-related diagnostics is configured as follows:
Figure 9-7 Configuration of the channel-related diagnostics
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