Status And Error Codes - Mitsubishi FX-1PG User Manual

FX-1PG/FX
5
5.6

Status and Error Codes

The status information to notify the PC of the PGU status
is automatically saved in the BFM #28. Read it into the
PC using the FROM instruction.
[ BFM #28] Status information (b0 to b8)
[b0] When b0 = 0: BUSY
When b0 = 1: READY
This bit is set to BUSY while the PGU is
generating pulses.
[b1] When b1 = 0: Reverse rotation
When b1 = 1: Forward rotation
This bit is set to 1 when operation is started
with forward pulse.
[b2] When b2 = 0: Home position return unexecuted
When b2 = 1: Home position return completed
When returning to the home position is
completed, b2 is set to 1, and continues to be 1
until the power is turned off. To reset b2, use
the program.
[ In the FX-1PG manufactured in November,
1993 or later (Serial No. 3Y**** or later), b2 can
be reset by the program.
In every FX
2N
program. ]
Connect b2 in series to the start command.
(Program example to reset b2)
Write "K0" to the BFM #28 (status information)
using the TO (P) instruction.
By this program, b2 (home position return
completed) only in the BFM #28 is reset and
rewritten to 0.
-1PG PULSE GENERATOR UNIT
2N
-1PG, b2 can be reset by the
"Home position
return completed"
bit reset input
TO P K 0
BLK No. BFM No. Written
[b3] When b3 = 0: STOP input OFF
When b3 = 1: STOP input ON
[b4] When b4 = 0: DOG input OFF
When b4 = 1: DOG input ON
[b5] When b5 = 0: PG0 input OFF
When b5 = 1: PG0 input ON
Any of them represents the ON/OFF status of
the PGU input as it is.
[b6] When b6 = 1: Current position value overflow
The 32-bit data saved in the BFMs (#27 and
#26) has overflown. This bit is reset when
returning to the home position is completed or
the power is turned off.
[b7] When b7 = 1:Error flag
b7 becomes 1 when an error has occurred in
the PGU, and the contents of the error are
saved in the BFM #29.
This error flag is reset when the BFM #25 b0
becomes 1 or the power is turned off.
[b8] When b8 = 0: Positioning started
When b8 = 1: Positioning completed
b8 is cleared when positioning is started home
position return start, or error reset (only when
error occurs), and set when positioning is
completed. b8 is also set when returning to the
home position is completed.
BFM LIST
K 28 K 0 K 1
Number of
value transfer points
5-13