2.4 Communications with MP-series Controllers
Using I/O Message Communications with the MP3000 as the Master
2-42
Using I/O Message Communications with the MP3000 as the
Master
This section describes how to communicate with an MP2300-series Controller by using I/O message com-
munications.
Note: 1. I/O message communications use 1-to-1 communications.
2. When using the Extended MEMOBUS protocol to communicate with an MP-series Controller, you can only
read and write hold registers.
3. When communicating with multiple remote devices or when you need to perform any operations other than
reading or writing to hold registers, use the Send Message function (MSG-SNDE).
MP2300MP3000
218IFD
EthernetEthernet
DC24V
DC 0V
MP2300
YASKAWA
TEST
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
ONOFF
PORT
10Base-T
MP3000
(local station)
Master
Communications Protocol
Connect Type
Data Code
TCP or UDP
Binary or ASCII
I/O message communications
(no ladder programming)
218IF-01
Optional
Module
MSG-RCV function
(ladder application)
Extended MEMOBUS protocol
Extended MEMOBUS protocol
Slave
MP2300
(remote station)