User`s manual

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4.6.3 Configuring details of protocols
4 PREDEFINED PROTOCOL SUPPORT FUNCTION
GX Works2
Screen button
●
Displays the Communication Parameter Batch Setting
screen. ( Section 4.6.4)
Send Setting
Number of
Retries
Set the number of times the Q series C24N/L series C24 module retries to send
when the sending from the Q series C24N/L series C24 module has not been
completed within the set time of "Monitoring Time".
The Q series C24N/L series C24 module determines an error if the sending has not
been completed despite the specified number of times of sending retries.
Retry Interval
Set the interval between the failure of sending from the Q series C24N/L series C24
module and the retry when the sending from the Q series C24N/L series C24
module has not been completed within the set time of "Monitoring Time".
Standby Time
Set standby time between when a protocol set to the Q series C24N/L series C24
module turns to the execution status and when it actually sends the data. By setting
this item, the send timing of the Q series C24N/L series C24 module can be
adjusted to readiness of other devices to receive data.
Monitoring Time
Set waiting time between when the Q series C24N/L series C24 module turns to the
'sending' status and when the sending is completed.
If the communication with other devices is not available due to a cable
disconnection etc. and the sending cannot be completed within the set time, the Q
series C24N/L series C24 module determines an error and cancels the 'sending'
status.
*1 : For a protocol selected from the predefined protocol library, "Connected Device Information" and
"Protocol Setting Information" cannot be modified.
● Example of when the data cannot be sent
When the set value of "Number of Retries" is 2, the Q series C24N/L series C24 module determines an error at the
following timing if it cannot send the data.
Item Description
Standby time Monitoring time Retry interval Monitoring time Monitoring time
Monitoring
timeout
Q series C24N/L series C24
Monitoring
timeout
Monitoring
timeout
CPRTCL instruction
abnormal completion
CPRTCL instruction execution
Data sending First retry Second retry
Retry interval
Standby time Monitoring time Retry interval Monitoring time Monitoring time
Monitoring
timeout
Q series C24N/L series C24
Monitoring
timeout
Monitoring
timeout
CPRTCL instruction
abnormal completion
CPRTCL instruction execution
Data sending First retry Second retry
Retry interval