Interrupt Function; Overview Of Interrupt Function; Setting Of Unit Body; Configuration Using Tool Software - Panasonic FP7 User Manual

Interrupt Function

6.1 Interrupt Function

6.1.1 Overview of Interrupt Function

• The multi input/output unit can start an interrupt program of the CPU unit using an interrupt
input signal or counter comparison match flag.
• If the activation condition is met, the interrupt program of a corresponding program number
will be activated. Once the execution of the interrupt program is complete, the process
returns to the execution of the main program.
 Interrupt function specifications
Item
No. of interrupt
programs
(Note 1) (Note 2)
Interrupt condition
(Note 1) If interrupts occur many times in one scan, the execution of intterupt program has priority, and the scan time
will be longer.
(Note 2) If more than one interrupt activation request is made from the unit, the process will be carried out from the
smallest slot number or the smallest interrupt program number.
(Note 3):The interrupt program will start when the counter elapsed value agrees with the comparison value when
using the comparison function. On the unit ver.1.1 or later, the following conditions can be set as interrupt
conditions; Comparison match output (OFF->ON / ON->OFF), comparison match output (OFF->ON),
comparison match output (ON->OFF)

6.1.2 Setting of Unit Body

 Setting method
For using the interrupt function, it is necessary to set the switch on the side of the unit. Refer
to "2.1 Names and Functions of Parts".

6.1.3 Configuration Using Tool Software

The settings of the interrupt function are specified in the configuration menu of FPWIN GR7.
 Setting method
The following procedure shows the case that "External interrupt input (OFF -> ON)" is
allocated to the input (X108) of the multi I/O unit registered in the starting word number 10. It
also describes the procedure when the multi I/O unit has been already allocated in the I/O
map.
6-2
Specifications
Per multi I/O unit
Per CPU unit
Any of the following conditions can be selected by one point.
Rising of external input (X8-XF) (OFF -> ON)
Falling of external input (X8-XF) (ON -> OFF)
Comparison match (Note 3)
Max. 8 programs
Max. 64 programs (8 programs x 8 units)