Clearing Errors Using User Programs - Panasonic FP7 User Manual

10.1.3 Clearing Errors Using User Programs

• Each error can be cleared by user programs.
• Refer to error codes, correct error factors, and clears the errors.
 Clearing all channels by UCLR instruction
• Executing the dedicated instruction UCLR (error) clears errors occurred in the high-speed
counter unit.
Example) Program to clear errors of the high-speed counter unit installed in the slot No. 1
R100
DF
（ ）
Unit clear
request
 Clearing each channel separately by I/O signals
• Turning on the error clear request flag allocated to the I/O area clears errors in each channel
separately. The program below shows the error clear of channel 0.
• The overflow or underflow annunciation flag can be cleared by each clear signal, reset or
preset operation. However, error states are not cleared.
Example) Program to request for clearing errors of CH0 of the high-speed counter unit
installed in the slot No. 1
R100
DF
（ ）
Error clear
request
Y10F
CH0 error
clear request
 Allocation of I/O signals
Signal name
Overflow clear
Underflow clear
Error clear
Overflow annunciation
Underflow annunciation
Error annunciation
(Note 1): The above I/O numbers are those for the slot number 1 and the starting word number 10. The I/O numbers
actually used vary according to the slot number where the unit is installed and the starting word number.
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X10F
CH0 error
annunciation flag
UCLR U1
Slot No.
Y10F
CH0 error
clear request
CH0 CH1
Y10D Y11D
Y10E Y11E
Y10F Y11F
X10D X12D
X10E X12E
X10F X12F
CH2 CH3
Y12D Y13D
Y12E Y13E
Y12F Y13F
X14D X16D
X14E X16E
X14F X16F