Completion Of Execution Of Instruction ("Instruction Execution Complete" Flag, "Instruction Execution Abnormal End" Flag; Pulse Output Monitor" (Busy/Ready) Flag; Positioning Instruction Activation" Flag - Mitsubishi MELSEC-F FX3U Series User Manual

FX /FX Series PLC User's Manual - Positioning Control Edition
3U 3UC
Built-in Positioning Function
4.4.2 Completion of Execution of Instruction ("Instruction execution complete" Flag,
"Instruction execution abnormal end" Flag)
Use "Instruction execution complete" flag or "Instruction execution abnormal end" flag to check whether
execution of the positioning instruction is completed properly.
"Instruction execution complete" flag and "Instruction execution abnormal end" flag can be turned on or off for
each instruction. Use these flags just after execution of each instruction.
• "Instruction execution complete" flag: Will be turned on if the instruction is executed properly.
• "Instruction execution abnormal end" flag: Will be turned on if the instruction is not executed properly.
Caution:
If "Instruction execution complete" flag or "Instruction execution abnormal end" flag is turned on, then the
execution of the instruction (pulse outputting operation, etc.) is completed. However, it is not certain whether
the servo motor is stopped. Check "positioning completion" signal or "servo ready" signal of the servo
amplifier (drive unit) to check whether the servo motor is stopped.
4.4.3

"Pulse Output Monitor" (BUSY/READY) Flag

Use "pulse output monitor" (BUSY/READY) flag to check whether the pulse is being output to the pulse
output destination device. The following table shows "pulse output monitor" (BUSY/READY) flag of each
pulse output destination device (Y000, Y001, Y002, Y003).
Pulse output
destination device
Y000
Y001
Y002
*1
Y003
*1. Devices related to Y003 (pulse output destination) are valid only if two FX
connected to the FX
4.4.4

"Positioning Instruction Activation" Flag

Use "positioning instruction activation" flag of each pulse output destination device to check whether or not
the positioning instruction is being executed for the pulse output destination. Use this flag to prevent
simultaneous activation of two or more positioning instructions in the same pulse output destination device.
Pulse output
destination device
Y000
Y001
Y002
*1
Y003
*1. Devices related to Y003 (pulse output destination) are valid only if two FX
connected to the FX
B - 44
→ For details on programming, refer to Subsection 4.7.4.
"Pulse output monitor"
(BUSY/READY) flag
M8340
M8350
M8360
M8370
PLC.
3U
"Positioning instruction
Activation" flag
M8348
M8358
M8368
M8378
PLC.
3U
4.4 Current Value and Flag for Monitoring of Operation
Statuses of flag and pulse
Outputting pulse (BUSY):Flag = ON
Pulse outputting stopped (READY):Flag = OFF
Statuses of flag and pulse
ON: The positioning instruction is being activated for the
corresponding pulse output destination.
(Even after completing execution of the instruction, if the
instruction is still activated, the flag will not be turned
off.)
OFF: The positioning instruction is not being activated for the
corresponding pulse output destination.
4 Before Programming
-2HSY-ADP adapters are
3U
-2HSY-ADP adapters are
3U