User`s manual

INP-TN5A0202-E 5-15
5.3 PLC Communication Setting
PLC communication fault detection setting
Setting the retry operation when no programless communication module response from the PLC.
Refer to the parameters below.
Parameter Setting Range Unit
Factory-set
value
Attribute
MODBUS register No.
(Relative Address)
PLC response monitoring
time
10 to 10000 (Unit: 10msec.) ms 200 R/W 40006 (0005h)
Number of retry times 0 to 10 times 0 R/W 40007 (0006h)
In the case the response from the PLC does not end even the time set by the “PLC response monitoring time” parameter has
passed, it retries the times set for the “Number of retry times” parameter.
Programless communication module Sending frame Sending frame
PLC Responding frame
PLC communication fault detecting time
Even if no response after retry set for the “The number of retry times” parameter, the operation set for the “Operation setting
when a programless communication fault occurs” parameter
5-4
is executed.
Note
“PLC response monitoring time” is judged in units of 10ms. (The fraction less than units of 1ms are rounded off)
When using 1:N connection, the settings of every connected programless communication modules should be the same
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