Fujitronic Programmable Operation Display UG520H-x - Manual (Page 47)

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Signal
FG
RDA
RDB
SDA
SDB
SG
Link unit
Signal
FG
RDA
RDB
SDA
SDB
SG
Link unit
SD/RD terminal resistance
(ON)
Signal Pin No.
FG
+SD
-SD
+RD
-RD
SG
1
12
13
24
25
7
* Use twist shielded cable.
Signal
FG
RDA
RDB
SDA
SDB
SG
Link unit POD (CN1)
Multi-drop Communication (RS-485)
Refer to the PLC manual of each manufacturer for connection.
<E.g.>
The following example describes how one POD is connected to three PLCs made by MITSUBISHI.
See MITSUBISHI’s manual for further details.
n : 1 Link Communication (Multi-link 2)
Up to 4 units can be connected to one PLC.
* Between a PLC and the POD master station is the same as those for 1:1 connection.
Available PLCs for multi-link2.
As of October 2002, the PLCs supported are as follows. All the PLCs which are usable for 1:1 communi-
cation will be supported.
For the I/F driver, the Multi-Link 2 is supported by the version of 1.100 or later (screen development
software: version of 2.1.4.0 or later) and as for a POD master station, make sure the hardware version of
the unit is as follows.
As for UG221/UG220, any version can be used.
UG520H-V 4, UG520H-S 3, UG420H-V 5, UG420H-T 5, UG420H-S 4, UG320H 7
* The Multi-Link 2 cannot be used with a communication interface unit such as UG03I-T, J, E, C, S, P,
UG02I-T, J, S.
* The Multi-Link 2 cannot be used with Temperature controll network.
15 Connection
CN1
(a)
(c) (b) (e) (d)
MJ2 CN1 CN1 CN1
PLC
Terminal
block
Communication between the stations : RS-485 (2-wire system), maximum length = 500 m
POD Master
(local Port No. 1)
POD Slave
(local Port No. 2)
POD Slave
(local Port No. 3)
POD Slave
(local Port No. 4)