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

1.40

Interrupt Function

This function starts an interrupt program of the CPU module when an interrupt factor such as an error, alarm, or a shutoff of
the external power supply is detected.
Up to 16 interrupt pointers per module can be used in the temperature control module.
Operation
■Detection of interrupt factors
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\G5 to Un\G20) is turned to Interrupt factor (1).
■Resetting an interrupt factor
When 'Interrupt factor reset request [n]' (Un\G156 to Un\G171) corresponding to a generated interrupt factor is set to Reset
request (1), the specified interrupt factor is reset and 'Interrupt factor detection flag [n]' (Un\G5 to Un\G20) is set to No
interrupt factor (0).
Setting method
To use the interrupt function, set "Condition target," "Channel specification target," "Interrupt factor transaction setting," and
"Interrupt pointer" with the engineering tool. After configuring the settings, write the project and enable the settings.
[Navigation window]  [Parameter]  Target module  [Interrupt setting]
The following table lists the items in the Interrupt setting window.
Item
Condition target setting
Condition target channel setting
Interrupt factor generation setting
Interrupt pointer
■Condition target setting
Select a condition target factor to detect interrupts.
For details on the detection factors, refer to the following:
Page 222 Condition target setting [n]
■Condition target channel setting
When the condition target to detect interrupts has been set to channels, select a target channel.
For details on the setting, refer to the following:
Page 223 Condition target channel setting [n]
■Interrupt factor generation setting
Configure the interrupt request setting for when an interrupt factor occurs while the same interrupt factor has been detected.
• When Interrupt reissue request has been set and an interrupt factor occurs while the same interrupt factor has been
detected, an interrupt request is sent to the CPU module again.
• When No interrupt reissue request has been set and an interrupt factor occurs while the same interrupt factor has been
detected, no interrupt request is sent to the CPU module.
■Interrupt pointer
Specify an interrupt pointer number to start when an interrupt factor is detected. For details on interrupt pointers, refer to the
following:
MELSEC iQ-R CPU Module User's Manual (Application)
Description
Select a target factor to detect interrupts.
When the condition target to detect interrupts has been set to channels, select a target channel.
Configure the interrupt request setting for when an interrupt factor occurs while the same interrupt factor
has been detected.
Specify an interrupt pointer number to start when an interrupt factor is detected.
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1.40 Interrupt Function
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