Mitsubishi Electronics FX3G User Manual

FX

3S

/FX

3G

/FX

3GC

/FX

3U

/FX

3UC

 Series

Programming Manual - Basic & Applied Instruction Edition

37 Operation of Special Devices (M8000 -, D8000 -)

[M]8370

[Y003] Pulse output monitor 
(ON: BUSY/ OFF: READY)

–

–

–

*2

–

–

–

–

–

–

–

 M 8371

*1

[Y003] Clear signal output function enable

–

–

–

*2

–

–

–

–

–

–

–

 M 8372

*1

[Y003] Zero return direction specification

–

–

–

*2

–

–

–

–

–

–

–

 M 8373

[Y003] Forward limit

–

–

–

*2

–

–

–

–

–

–

–

 M 8374

[Y003] Reverse limit

–

–

–

*2

–

–

–

–

–

–

–

 M 8375

*1

[Y003] DOG signal logic reverse

–

–

–

*2

–

–

–

–

–

–

–

 M 8376

*1

[Y003] Zero point signal logic reverse

–

–

–

*2

–

–

–

–

–

–

–

 M 8377

*1

[Y003] Interrupt signal logic reverse

–

–

–

*2

–

–

–

–

–

–

–

[M]8378

[Y003] Positioning instruction activation

–

–

–

*2

–

–

–

–

–

–

–

 M 8379

*1

[Y003] Pulse output stop command

–

–

–

*2

–

–

–

–

–

–

–

[M]8370

Not used

–

–

–

–

–

–

–

–

–

–

–

[M]8371

*1

RS2 (FNC 87) [ch0] instruction: Send wait flag

–

–

–

–

–

–

–

–

–

 M 8372

*1

RS2 (FNC 87) [ch0] instruction: Send request

–

–

–

D8372

–

–

–

–

–

 M 8373

*1

RS2 (FNC 87) [ch0] instruction: 
Receive complete flag

–

–

–

D8373

–

–

–

–

–

[M]8374 to [M]8378 Not used

–

–

–

–

–

–

–

–

–

–

–

 M 8379

RS2 (FNC 87) [ch0] instruction: Time-out check 
flag

–

–

–

–

–

–

–

–

–

*1.

These devices are cleared when the PLC mode switches from RUN to STOP or when the RS2 instruction
[ch0] turns OFF.

*2.

Available only when two FX

3U

-2HSY-ADP units are connected to an FX

3U

 PLC.

[M]8380

*3

Operation status of C235, C241, C244, C246,
C247, C249, C251, C252, and C254

–

–

–

–

–

–

–

–

–

[M]8381

*3

Operation status of C236

–

–

–

–

–

–

–

–

–

[M]8382

*3

Operation status of C237, C242, and C245

–

–

–

–

–

–

–

–

–

[M]8383

*3

Operation status of C238, C248, C248 (OP),
C250, C253, and C255

–

–

–

–

–

–

–

–

–

[M]8384

*3

Operation status of C239 and C243

–

–

–

–

–

–

–

–

–

[M]8385

*3

Operation status of C240

–

–

–

–

–

–

–

–

–

[M]8386

*3

Operation status of C244 (OP)

–

–

–

–

–

–

–

–

–

[M]8387

*3

Operation status of C245 (OP)

–

–

–

–

–

–

–

–

–

[M]8388

Contact for high-speed counter function change

–

–

–

–

–

–

 M 8389

External reset input logic reverse

–

–

–

–

–

–

–

–

–

 M 8390

Function changeover device for C244

–

–

–

–

–

–

–

–

–

 M 8391

Function changeover device for C245

–

–

–

–

–

–

–

–

–

 M 8392

Function changeover device for C248 and
C253

–

–

–

–

–

–

*3.

Cleared when PLC switches from STOP to RUN.

[M]8393

Contact for delay time setting

–

–

–

D8393

–

–

–

–

–

[M]8394

HCMOV (FNC189): Drive contact for interrupt
program

–

–

–

–

–

–

–

–

–

[M]8395

Function changeover device for C254

–

–

–

–

–

–

–

–

–

[M]8396

Not used

–

–

–

–

–

–

–

–

–

–

–

[M]8397

–

–

–

–

–

–

–

–

–

–

–

 M 8398

Ring counter operation 
(in units of 1ms, 32 bits)

*4

D8398,

D8399

–

–

–

–

–

[M]8399

Not used

–

–

–

–

–

–

–

–

–

–

–

*4.

1ms ring counter (D8399, D8398) will operate after M8398 turns ON.