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MELSEC-F

FIXED BUFFER COMMUNICATION (WITH THE PROCEDURE EXIST

CONTROL METHOD)

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6.5.2 Fixed buffer communication program example (with the procedure exist control method)

This section explains the programming method in order to communicate data
(procedure exist control method) with an external device using the fixed buffers.

(1) Execution environment for the program example

(a) Send program (FX

-1st station)

1) Connection No. 1 is used for fixed buffer sending.
2) The unit number specified in the sequence program and

FX Configurator-EN-L is 0.

3) The communication parameter settings are assumed to have been set as

described in Subsection 5.6.1, "Active open processing/close
processing".
(see the table below)

4) Fixed buffer No. 1 send data

: Stored in D1000 to D1031

5) Fixed buffer No. 1 send instruction complete device

: M201

6) Fixed buffer No. 1 send instruction abnormal complete device

: M202

7) Fixed buffer No. 1 send instruction complete status

: D101

[Operational settings]

[Open settings]

Setting name

Settings in FX Configurator-EN-L

Settings in the program

Communication data code setting

Binary code

BFM#24 b1:OFF

Initial timing

Do not wait for OPEN

(Communications impossible at STOP time)

BFM#24 b8:OFF

Local station IP address

10.97.85.222 (0A.61.55.DE

)

BFM#106 to 108

Send frame setting

Ethernet (V2.0)

BFM#24 b5:OFF

TCP Existence confirmation setting Use the Ping

BFM#24 b4:OFF

Setting name

Settings in FX Configurator-EN-L (No.1)

Settings in the program

protocol

TCP

BFM#32 b8:OFF

Open system

Active

BFM#32 b14,b15:00

Fixed buffer

Sending

BFM#32 b0:OFF

Fixed buffer communication

Procedure exist

BFM#32 b9:OFF

Paring open

No pairs

BFM#32 b7:OFF

Existence confirmation

No confirm

BFM#32 b1:OFF

Local station Port No.[Decimal]

4096

BFM#40

Destination IP address

10.97.85.223 (0A.61.55.DF

)

BFM#41,42

Destination Port No.[Decimal]

8192

BFM#43

-1st station

-2nd station