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MAN0922-01-EN
TROUBLESHOOTING THE CONNECTION
1. There are several status registers that can be assigned to give an indication of
the health of the Network and of individual Modbus Nodes (SmartMods)
2. In Cscape/Protocol Configuration/Network settings, assign a register as in
Fig. 12. The registers are defined below.
Update interval Exceeded Count [%R1000+%R1001] (32 bit) – Number of
times that the actual transaction scan time to complete all transactions exceeded
specified update interval. Generally used as an indicator that an excessive
number of triggered transfers or failed communication retries are occurring that is
lengthening the expected transaction scan time. If the Update interval is set to
zero (update as fast as possible), this 32-bit register alternately specifies the
actual transaction scan time in mSec resolution.
No Response Count [%R1002+%R1003] (32 bit) – Number of times that a
device(s) did not respond to a transaction. This includes ALL failed transaction,
not just those after the retry count is exceeded.
Corrupt Response Count [%R1004+%R1005] (32 bit) – Number of times that a
device(s) returned an invalid or failed response to a transaction. This includes
ALL failed transaction, not just those after the retry count is exceeded.
Valid Response Count [%R1006+%R1007] (32 bit) – Total number of valid
responses.
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Fig. 12
SmarMod Quick Start Guide
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