Mitsubishi Electric MELSEC iQ-R RD75P4, Руководство пользователя

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7 CONTROL SUB FUNCTIONS
7.9 Other Functions
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7
Detecting interrupt factors
To send an interrupt request to the CPU module when an interrupt factor is detected, clear the interrupt mask by setting
[Cd.50] Interrupt factor mask beforehand.
*1 n: 0 (setting 1) to 15 (setting 16)
If an interrupt factor occurs, the value in [Md.65] Interrupt factor detection flag changes as follows.
*2 n: 0 (setting 1) to 15 (setting 16)
Resetting interrupt factors
When [Cd.51] Interrupt factor reset request is set to 1: Reset request, the interrupt factor is reset and 0: Interrupt factor not
detected is stored in [Md.65] Interrupt factor detection flag.
*1 n: 0 (setting 1) to 15 (setting 16)
The following figure shows an example of the interrupt factor reset processing.
Setting item Setting
value Setting detail Buffer memory address
*1
[Cd.50] Interrupt factor mask 0, 1 Set the mask for the interrupt factor used.
0: Mask (disable interruption)
1: Clear mask (enable interruption) 55064+n
Monitor item Monitor
value Monitor details Buffer memory address
*2
[Md.65] Interrupt factor detection
flag 0, 1 Stores the detecting status of an interrupt factor.
0: Interrupt factor not detected
1: Interrupt factor detected 55000+n
Setting item Setting
value Setting detail Buffer memory address
*1
[Cd.51] Interrupt factor reset
request 0, 1 The interrupt factor is reset.
0: No reset request
1: Reset request
When the interrupt factor reset request is accepted, 0 is
stored. 55128+n
(1) In the interrupt program, set [Cd.51] Interrupt factor reset request to 1: Reset request.
(2) When [Cd.51] Interrupt factor reset request is accepted, [Md.65] Interrupt factor detection flag and [Cd.51] Interrupt factor reset request are cleared to 0.
Cd.51
Md.65
(1)
(2)
0 1 0 1 0
0 1 0 1 0
Interrupt
program
Normal control
program
If an interrupt factor is
detected again after
interrupt factor reset, the
interrupt is requested.
CPU module
(scan execution type program)
CPU module
(interrupt program)
Interrupt factor detection flag
Interrupt factor
Interrupt factor reset request
Normal control
program Normal control
program
Interrupt
program
If an interrupt factor is
detected again before
interrupt factor reset, the
interrupt is not requested.