Yaskawa MP2300S Basic Module - Manual (Page 238)

6.2 Communication with Other MP Series
6.2.4 When the MP2300S Acts as Master (ladder program which uses a MSG-SND function)
6-49
Built-in Ethernet Communications
6.2.4 When the MP2300S Acts as Master (ladder program which uses a MSG-SND
function)
The I/O message communication function cannot operate any registers other than the holding register (M register).
Note that it can communicate with only one slave.
To communicate with more than one slave, use a ladder program with a message transmit function (MSG-SND) on the
MP2300S side. You can use the message transmit (MSG-SND) function as well as the I/O message communication
function by keeping connections separate from each other.
This section explains how to communicate with the MP2300 message receive function (MSG-RCV) using the
MP2300S message transmit function (MSG-SND).
Fig. 6.8 Message Flow with MP2300 when Message Transmit Function (MSG-SND) Is Used
MP
/
E thernet
LINK
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DC24V
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MP2300
YASKAWA
TEST
ޓ
ޓ
ޓ
RDY
ALM
TX
RUN
ERR
BAT
MON
CNFG
INT SUP
STOP
SW1
OFF ON
BATTERY
CPU I/O
218IF-01
ERR
COL
RX
RUN
STRX
TX
INIT
TEST
ON OFF
PORT
10Base-T
Slave Master
MP2300S
(Local station) (Remote station)
MP2300
MP2300 MP2300S
Ethernet
Communication Protocol
Type
Connection Type
Data Code Type
Extended MEMOBUS
protocol
Ethernet
TCP / UDP
BIN / ASCII
218IFA
Extended MEMOBUS protocol
MSG-SND function
(ladder application)
MSG-RCV function
(ladder application)
Option Module
(218IF-01)