4-8
IM XL100C-E
3. When the XL100 disconnects the slave device that is not responding for a
period equal to 10 times the timeout value and makes a normal recovery at the
retrial
(1) Disconnect slave device 2 that is not responding (when the retry count is 1)
Read cycle
Data dropout
(Slave 2 and 3)
Data dropout
(Slave 2 and 3)
Slave device 1
Slave device 2
Slave device 3
Timeout value
Timeout value
Time during which slave 2
is disconnected:
10 times the specified timeout
Retry
1st time
Disconnect slave 2
1
(2) Disconnect slave device 2 for a period equal to 10 times the timeout value
and recover through retry at the first read cycle
Slave device 1
Slave device 2
Slave device 3
Normal
recovery
Time during which slave 2 is disconnected:
10 times the specified timeout
1
4.5 Data Dropout Handling of the Modbus Master
