
Reference
:
<9.2 Reference> About time out period of master
<5.7.4 MEWTOCOL communication example>
<5.8 “1:N topology for report” function with I/O type>
■
I/O type, RS485type mixed
RS232C
[RS485]
[I/O]
Master 00
PLC 04(MEWTOCOL)
[I/O]
Slave 03
Flasher
Switch
MEWTOCOL command
Computer
Slave 02
[I/O]
Slave 01
(Repeater)
Drive circuit
・
It is impossible to control I/O of slave by I/O of master. By sending the commands from the
computer or PLC that is connected in the upper level, it controls I/O of master and slaves.
・
For 1:N topology of I/O type, wireless units are located as same as the equipment for
MEWTOCOL. Therefore when the equipment for MEWTOCOL is connected to the slave, it is
necessary to change the unit number.
・
Even if the input signal is input from the upper level to the slave as long as information on the
slave is not inquired, information is not transmitted.
・
In the setting tool, select from the below communication protocols.
Communication protocol
name in the setting tool
Contents
[I/O]MEWTOCOL(Event)
I/O type for MEWTOCOL communication(1:N topology Event) It
supports the mixture with RS485 type
※
Initial [I/O] shows that it is for I/O type.
※
Supported MEWTOCOL-COM commands for I/O type are Read contact area (RC) and Write
contact area (WC).
Note
:
In master setting of setting tool, select communication protocol, but you can’t
use 1:N topology other than above protocols.
Reference:
<9.2 Reference data> About timeout period of master
<5.7.5 MEWTOCOL communication example (I/O type, RS485 type mixed)>
1-7
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