Mitsubishi LJ61BT11 User Manual page 168

(3) Simulation of the interrupt program
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4) "Start SI No." on the intelligent module side
Set the smallest number for intelligent function module interrupt pointers
specified in "Interrupt (SI) No." of the "Interrupt Setting" in the Network
Parameter setting.
Setting range: 0 to 15
When the event issuance conditions are established in the master station using
GX Works2, the interrupt program is executed even when the corresponding
modules are not connected, and then the interrupt program can be simulated.
(Example) An event is issued when RX01 turns on, and then an interrupt
program is executed.
8 FUNCTIONS
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