User`s manual

260
8.4.3 When an coincidence detection interrupt does not occur
Check item Corrective action
Has the following CPU module been used?
• Q00J/Q00/Q01CPU(function version A)
• Redundant CPU
Change to the CPU module applicable to the intelligent function module
interrupt pointer setting.
Have the coincidence output 1 to 8 in Coincidence
detection interrupt setting (Un\G2) been set to Use (1)?
Set the coincidence output 1 to 8 in Coincidence detection interrupt setting
(Un\G2) to Use (1), and switch Operating condition settings batch-change
command (Y01) as follows; OFF, ON, and OFF.
Is the intelligent function module interrupt pointer setting
in PLC Parameter correct?
Review the intelligent function module interrupt pointer setting.
Are the program operation control instructions, such as
IMASK, used correctly?
Review the sequence program.
Have the coincidence output 1 to 8 (X10 to X17) been
kept on if the coincidence output function is set for the
comparison output setting, and coincidence output is
selected as the comparison condition?
Reset (off) the coincidence output 1 to 8 (X10 to X17) by Reset command
(coincidence output 1 to 8) (Y10 to Y17).
When doing so, set the ON time of Reset command (coincidence output 1 to
8) (Y10 to Y17) 2ms or longer.
Have the intervals between interrupts been kept 2.5ms or
longer if the coincidence output function is set for the
comparison output setting, and in-range output or not-in-
range output is set for Coincidence output condition
setting (Un\G0)?
Have an interval of 2.5ms or longer between interrupts.