Sharp JW-50FL Manual de usuario Pagina 41

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Signal
FG
RDA
RDB
SDA
SDB
SG
Link module
Signal
FG
RDA
RDB
SDA
SDB
SG
Link module
SD/RD terminal resistance
(ON)
Signal
Pin No.
FG
+SD
-SD
+RD
-RD
SG
1
12
13
24
25
7
ZM-
**
(CN1)
* Use twist shielded cable.
Signal
FG
RDA
RDB
SDA
SDB
SG
Link module
Multi-drop Communication (RS-485)
Refer to the PLC manual of each manufacturer for connection.
<E.g.>
The following example describes how one ZM-
**
is connected to three PLCs made by MITSUBISHI.
See MITSUBISHIs manual for further details.
1 Connection
[3] n : 1 Link Communication (Multi-link 2)
(1) Multi-link 2
Up to 4 units can be connected to one PLC.
* Between a PLC and the ZM-
**
master station is the same as those for 1:1 communication.
Available PLCs for multi-link 2.
As of January 2001, the PLCs supported are as follows. All the PLCs which are usable for 1:1
communication will be supported.
For the I/F driver, the Multi-Link 2 is supported by the version of 1.100 or later and as for a ZM-
**
master station, make sure the hardware version of the unit is as follows.
As for ZM-42/43 series, any version can be used.
· ZM-82T series: D, ZM-82D series: C, ZM-72TS series:D, ZM-72T series: D, ZM-72D series: C,
ZM-52D series: F
* The Multi-Link 2 cannot be used with a Network module ZM-80NU.
PLC
ZM-
**
master
(Local Port 1)
ZM-
**
slave
(Local Port 2)
ZM-
**
slave
(Local Port 3)
ZM-
**
slave
(Local Port 4)
CN1CN1CN1CN1 MJ2
terminal
Communication between the ZM-
**
: RS-485 (2-wire system) Maximum length: 500 m
(a)
(b)
(c)
(d) (e)
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