Справочник Пользователя для Mitsubishi Electronics FX

FX Series Programmable Controlers

5-96

This instruction is used with the FX parallel link
adapters. It allows source data to be moved into
the bit transmission area. The actual control of the
parallel link communication is by special M flags.

a) Parallel link communications automatically take

place when both systems are ‘linked’ and the
Master station (M8070), Slave station flags
(M8071) have been set ON (there is no need to
have a PRUN instruction for communications).
There can only be one of each type of station as
this system connects only two FX PLC’s. The
programs shown opposite should be inserted
into the appropriate FX PLC’s programs.

b) During automatic communications the following data is ‘swapped’ between the Master and

Slave PLC’s.

Continued...

PRUN
FNC 81
(Parallel run)

Used to control
the FX parallel
link adapters:
FX2-40AW/AP

KnX, KnM 

KnY, KnY

PRUN,
PRUNP:
5 steps
DPRUN,
DPRUNP:
9 steps

Note:
n = 1 to 8
For ease and convenience, the head address 
bit
should be a multiple of ‘10’, e.g. X10, M100, 
Y30 etc.

Communication

direction

M8070 =
ON

Bit Data

Bit Data

M8071 =
ON

M800 to M899 (100 points) 

→

M800 to M899 (100 points)

M900 to M999 (100 points)

←

M900 to M999 (100 points)

Data words 

Data words 

D490 to D499 (10 points)

→

D490 to D499 (10 points)

D500 to D509 (10 points)

←

D500 to D509 (10 points)

FX

0(S)

FX

0N

FX FX

(2C)

FX

2N(C)

FX

(2C)

FX

FX

2N(C)

FX

0N

FX

0(s)

PULSE-P

FX

(2C)

FX

FX

2N(C)

FX

0N

FX

0(s)

16 BIT OPERATION

FX

FX

0N

FX

0(s)

FX

(2C)

FX

2N(C)

32 BIT OPERATION

X6

K2X10

PRUN

[ D ]

[ S ]

K2M810

M8000

M8070

Master FX PC

Slave FX PC

M8000

M8071

Once the station flags have been set, they can only be cleared by either forcibly resetting
them when the FX PLC is in STOP mode or turning the power OFF and ON again.