Interrupt Function - Mitsubishi Electric MELSEC iQ-R Series User Manual

1.13

Interrupt Function

The D/A converter module executes the interrupt program of the CPU module when an interrupt factor such as a
disconnection or alert output is detected.
For the D/A converter module, the maximum number of interrupt pointers available is 16 per module.
Operation
■Detecting an interrupt factor
When an interrupt factor occurs, an interrupt request is sent to the CPU module at the same time as 'Interrupt factor detection
flag [n]' (Un\G4 to Un\G19) is turned to Interrupt factor (1).
■How to reset an interrupt factor
When Reset request (1) is set to 'Interrupt factor reset request [n]' (Un\G156 to Un\G171) corresponding to the interrupt factor,
the specified interrupt factor is reset and 'Interrupt factor detection flag [n]' (Un\G4 to Un\G19) changes to No interrupt factor
(0).
Setting procedure
To use the interrupt function, set "Condition target setting", "Condition target channel setting", "Interrupt factor transaction
setting", and "Interrupt pointer" in the engineering tool. After completing the settings, write the project to enable the settings.
Navigation window  [Parameter]  [Module Information]  Module name  [Module parameter]  "Interrupt setting"
The following table shows the setting items on the interrupt setting window.
Item
Condition target setting
Condition target channel setting
Interrupt factor transaction setting
Interrupt pointer
■Condition target setting
Select a factor of the condition target setting for the interrupt detection.
For details on the factors to be detected, refer to the following.
Page 142 Condition target setting [n]
■Condition target channel setting
Select a target channel when the condition target setting for the interrupt detection is channel specification.
Item Setting value
Condition target channel 0: All channels
setting
*1 When X signal is specified for the condition target setting, this value is ignored.
■Interrupt factor generation setting
Set an interrupt request for when the same interrupt factor occurs during the interrupt factor detection.
• When Interrupt resend request (0) is set and the same interrupt factor occurs during the interrupt factor detection, an
interrupt request is sent to the CPU module again.
• When No interrupt resend request (1) is set and the same interrupt factor occurs during the interrupt factor detection, an
interrupt request is not sent to the CPU module.
■Interrupt pointer
To the interrupt pointer, specify a number of an interrupt pointer to be activated when an interrupt factor is detected or the
label related to the interrupt pointer. For details on the interrupt pointers, refer to the following.
 MELSEC iQ-R CPU Module User's Manual (Application)
Description
Select a factor of the target for the interrupt detection.
Select a target channel when the condition target setting for the interrupt
detection is channel specification.
Set an interrupt request for when the same interrupt factor occurs during the
interrupt factor detection.
Specify the number of an interrupt pointer that is initiated at the detection of an
interrupt factor.
*1
1: CH1 2: CH2 3: CH3 4: CH4 5: CH5 6: CH6
1.13 Interrupt Function
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7: CH7 8: CH8
1 FUNCTIONS
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