Table Of Special Internal Relays For Fp0R - Panasonic FP0R User Manual

15.1.2 Table of Special Internal Relays for FP0R

The special internal relays turn on and off under special conditions. The on and off states are not output
externally. Writing is not possible with a programming tool or an instruction.
WR900 FP0R
Relay No. Name
Self-diagnostic
R9000
error flag
R9001 Not used
R9002 Not used
R9003 Not used
I/O verification
R9004
error flag
R9005 Not used
R9006 Not used
Operation error
R9007
flag (hold)
Operation error
R9008
flag (non-hold)
R9009 Carry flag
R900A > Flag
R900B = Flag
R900C < Flag
Auxiliary timer
R900D
instruction flag
Tool port
R900E communication
error
Constant scan
R900F
error flag
A: Available, N/A: Not available
15-10
Turns on when a self-diagnostic error occurs.
⇒ The content of self-diagnostic error is stored in DT90000.
Turns on when an I/O verification error occurs.
Turns on and keeps the on state shen an operation error occurs.
⇒The address where the error occurred is stored in DT90017.
(indicates the first operation error which occurred).
Turns on for an instant when an operation error occurs.
⇒The address where the operation error occurred is stored in
DT90018. The contents change each time a new error occurs.
This is set if an overflow or underflow occurs in the calculation
results, and as a result of a shift system instruction being executed.
Turns on for an instant when the compared results become larger
in the comparison instructions (F60 to F63).
Turns on for an instant,
when the compared results are equal in the comparison
-
instructions (F60 to F63).
when the calculated results become 0 in the arithmetic
-
instructions.
Turns on for an instant when the compared results become smaller
in the comparison instructions (F60 to F63).
Turns on when the set time elapses (set value reaches 0) in the
timing operation of the F137(STMR)/F183(DSTM) auxiliary timer
instruction. The flag turns off when the trigger for auxiliary timer
instruction turns off.
Turns on when communication error at tool port is occurred.
Turns on when scan time exceeds the time specified in system
register 34 during constant scan execution.
This goes on if 0 has been set using system register 34.
Description