Abnormality Judgement And Operation - Panasonic FP7 User Manual

Control Data

8.3 Abnormality Judgement and Operation

Abnormality judgement is performed on the following contents.
Abnormality judgement
Connection timeout period
Cyclic communication start
wait time
(Abnormality judgement
when starting cyclic
communication)
Cyclic communication
abnormality judgement time
(Abnormality judgement after
connection)
8-6
Details
The timeout period when FP7 sends a forward open
command and connects to adapter devices.
When a response to the forward open command is not
returned within the set time, it determines that the timeout
occurs.
By setting this period short, it is possible to make the
reconnection time shorter when the power is turned on
again.
If connection is not established when starting the cyclic
communication, the operation is retried after the connection
timeout period, however, the communication abnormal
node flag is set after the elapse of this time.
The abnormality judgement is not performed before this
time passes.
The reconnection is retried automatically even after the
determination of the communication abnormal node.
When the timeout occurs during the transmission from an
adapter while the cyclic communication is performed
properly, the reconnection is retried automatically, however,
it judges as a communication error when the reconnection
is not established within this set time.
The reconnection is retried automatically even after the
determination of the communication abnormal node.
By setting this time short, it is possible to judge
communication errors quickly.