Mitsubishi Electric QD62 User Manual page 64

5 BASIC USAGE
5 - 9
3) Intelli. module side "Start I/O No."
Set the start I/O number of the QD62(E/D).
Setting range: 0000 to 0FF0 (H)
4) Intelli. module side "Start SI No."
Set the start interrupt factor (SI) No. of the QD62(E/D).
Setting range: 0 to 3
The following example shows SI 0 to 3 of the QD62(E/D) installed in the slot
where the start I/O is 20 being assigned to interrupt pointers I50 to I53.
(c) The following two methods are available for using only specific SI numbers:
1) Method using the parameter interrupt pointer setting
The interruption factors are used only for the start SI number and the
additional number of pointers, only which are specified in the dialog box
for the "Intelligent function module's interrupt point setting." For example,
if the start SI number is set as 1 and the number of pointers is set as 2,
only SI 1 and 2 are used. Also, the interrupt function cannot be used
when the parameter interrupt pointer setting has not been set.
2) Method using the IMASK command from the sequence program
When the IMASK command is used, interrupt program execution
enable/disable (interrupt mask) can be set for each interrupt pointer
number. Refer to the QCPU (Q Mode)/QnACPU Programming Manual
for details on the IMASK command.
POINT
A coincidence detection interrupt occurs when the counter value coincidence signal
rises (OFF ON). Thus, the next interrupt request does not occur unless the
coincidence signal is reset and the counter value coincidence signal is turned OFF.
MELSEC-Q
5 - 9