Interrupt Setting Function; Master Station Duplication Error Canceling Function - Mitsubishi Electric MELSEC iQ-R Series User Manual

1.5

Interrupt Setting Function

An interrupt request is issued to a CPU module when the interrupt conditions that have been set using an engineering tool are
satisfied, and the interrupt program can be executed. This function is used to stop the control and execute an interrupt
program upon an error or for other purposes.
Because the conditions are set using an engineering tool, the number of steps in a program is reduced, shortening the scan
time.
An interrupt request can be issued to all stations.
Setting method
Set the interrupt setting function under "Interrupt Settings" in "Application Settings". ( Page 70 Interrupt Settings)
1.6
Master Station Duplication Error Canceling
Function
When a master station duplication error has been detected, the error can be cleared without resetting the CPU module or
powering off and on the system.
How to cancel the error
1.
Eliminate the cause of a master station duplication error.
Another master station may exist on the same line, or the line may be being influenced by noise.
2.
Turn on 'Master station duplication error cancel request' (SB0007).
Link special relay (SB) areas and link special register (SW) areas
Link special relay (SB) areas and a link special register (SW) areas related to the master station duplication error canceling
function are listed below.
• 'Master station duplication error cancel request' (SB0007)
• 'Master station duplication error cancel acceptance' (SB0057)
• 'Master station duplication error cancel completion' (SB0058)
• 'Master station duplication error cancel result' (SW0057)
Timing chart
The following figure shows the timing chart of the link special relay (SB) areas and link special register(SW) areas.
'Master station duplication error cancel
request' (SB0007)
'Master station duplication error cancel
acceptance' (SB0057)
'Master station duplication error cancel
completion' (SB0058)
'Master station duplication error cancel
result' (SW0057)
ON
OFF
ON
OFF
Line check
OFF
Executed by the master/local module
Executed on the program
ON
Result
1 FUNCTIONS
1.5 Interrupt Setting Function
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