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MELSEC-F
7 FIXED BUFFER COMMUNICATION (WITH THE NO PROCEDURE
CONTROL METHOD)
7.5.2 Fixed buffer communication program example (with the no procedure control method)
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
3U
-1 side
FX
3U
-2 side
(1) Execution environment for the program example
(a) Send program (FX
3U
-1st station side)
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
3U
-2nd station side)
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
: Do not wait for OPEN (Communications
impossible at STOP time) (BFM#24 b8 : OFF)
IP address
: 10.97.85.223 (0A.61.55.DF
H
)
Содержание FX3U-ENET
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