Fixed Buffer Communication Program Example (With The No Procedure Control Method) - Mitsubishi MELSEC-F User Manual

7 FIXED BUFFER COMMUNICATION (WITH THE NO PROCEDURE
CONTROL METHOD)

7.5.2 Fixed buffer communication program example (with the no procedure control method)

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This section explains the programming method in order to communication data (through
the no procedure control method) with an external device using the fixed buffers.
FX -1 side
3U
(1) Execution environment for the program example
(a) Send program (FX
1) Connection No. 1 is used for fixed buffer sending.
2) The communication parameters settings are assumed to have been set
as described in Section 5.6.1, "Active open processing/close
processing" except the "Fixed buffer communication" parameter.
The "Fixed buffer communication" setting should be changed from
"Procedure exist" to "No procedure".
3) Fixed buffer No. 1 send data
: Stored in D1000 to D1015
4) Fixed buffer No. 1 send Send instruction complete device
: M201
5) Fixed buffer No. 1 send Send instruction abnormal complete device
: M202
6) Fixed buffer No. 1 send Send instruction complete status
: D101
(b) Receive program (FX
1) Connection No. 2 is used to process the fixed buffer receiving.
2) The Ethernet module is mounted as the second special module.
3) The unit number specified at the sequence program and FX
Configurator-EN (GX Developer) is 1.
4) Make Operation settings in the following manner.
Communication data code : Binary code (BFM#24 b1 : OFF)
Initial timing
IP address
FX -2 side
3U
-1st station side)
3U
-2nd station side)
3U
: Do not wait for OPEN (Communications
impossible at STOP time) (BFM#24 b8 : OFF)
: 10.97.85.223 (0A.61.55.DF
MELSEC-F
)
H
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