2
Presentation,
characteristics,
connections
Presentation
The Uni-Telway bus is a standard means of communication between control system
components (PLCs, HMI terminals, supervisors, variable speed drives, numerical
controllers, etc).
The Uni-Telway bus requires a master station (Premium, TSX Micro PLCs) which
manages the allocation of bus access rights to the various connected slave stations
(HMI terminals, variable speed drives, etc). The slave stations can communicate with
one another without programming the master station.
An industrial HMI terminal (Magelis type) can be connected directly to the bus and
can be used to adjust drives without developing applications specifi c to the PLC.
The Altivar 61 and Altivar 71 variable speed drives can be connected to the
Uni-Telway bus via a communication card VW3 A3 303.
Characteristics
Structure Topology Bus
Physical interface RS 485 isolated
Link Multidrop
Access method Master/slave type
T ransmission mode Asynchronous transmission in baseband
Data rate 4.8…19.2 Kbps
Medium Double shielded twisted pair
Number of stations 28 maximum
Length of bus 1000 m maximum excluding tap links
Tap links 20 m maximum
Services UNI-TE Request/response of up to 240 bytes (1) initiated by any connected station.
Unsolicited point-to-point data of up to 240 bytes (1) without confi rmation report,
initiated by any connected station.
Broadcast messages of up to 240 bytes (1) initiated by the master station.
Other functions T ransparent communication, via the master station, with any X-WAY architecture.
Diagnostics, debugging, adjustment, programming of PLCs.
Security Check character on each frame, acknowledgement and, if required,
repetition of messages ensure security of transmission.
Monitoring The bus status table, transmission error counters and station status
can be accessed on each station.
Uni-T elway bus wiring system
(1) Limited to 128 bytes with the Premium and TSX Micro PLC terminal port.
ATV 71 ATV 61
Magelis XBT
TSX Micro
Premium
Uni-Telway bus
ATV 71 ATV 61
Magelis XBT
TSX Micro
Premium
Uni-Telway bus
8 88 710
11
9
3
6
55
11
11
11 1
4
TSX Micro
(Terminal port)
Premium + TSX SCP 114
ATV 61 ATV 71
Premium + TSX SCY 21601
ATV 71
8 88 710
11
9
3
6
55
11
11
11 1
4
TSX Micro
(Terminal port)
Premium + TSX SCP 114
ATV 61 ATV 71
Premium + TSX SCY 21601
ATV 71
Starters, drives
and communication 3
Communication via Uni-Telway bus
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References
Uni-T elway bus connection elements (1)
Cards, kit and module
Description Used with No. Protocol Reference Weight
kg
Communication card
card equipped with a 9-way
female SUB-D connector
ATV 61
ATV 71
1 Uni-Telway,
Modbus
VW3 A3 303 0.300
RS 485 type III PCMCIA card
(compatible with RS 422)
1.2...19.2 Kbps
Premium, Atrium,
TSX Micro PLCs, or
TSX SCY 21601 module
3 Uni-Telway,
Modbus,
character mode
TSX SCP 114 0.105
Communication module Premium or Atrium PLC
4 Uni-Telway,
Modbus,
character mode
TSX SCY 21601 0.360
Connection accessories
Description Use No. Reference Weight
kg
Subscriber socket
T wo 15-way female
SUB-D connectors
and 2 screw terminals
2-channel junction box, trunk
cable extension and line
terminator
5
TSX SCA 62
0.570
T ap junction
3 screw terminals
Junction box, trunk cable
extension and line terminator
6 TSX SCA 50 0.520
T erminal port
connection box
with integrated cable,
length 1 m
Connection of a TSX Micro or
Premium PLC via the PLC
terminal port and line terminator
7 TSX P ACC 01 0.690
Cables
Description Use No. Length Reference Weight
From To m kg
Uni-T elway double
shielded twisted
pair cables
Junction box
TSX SCA 50,
subscriber
socket
TSX SCA 62,
terminal port
connection box
TSX P ACC 01
Subscriber
socket
TSX SCA 62,
junction box
TSX SCA 50,
terminal port
connection box
TSX P ACC 01
8 100 TSX CSA 100 5.680
200 TSX CSA 200 10.920
500 TSX CSA 500 30.000
Cables for isolated
RS 485 tap link
Card
TSX SCP 114
Junction box
TSX SCA 50
9 3 TSX SCP CU 4030 0.160
Subscriber
socket
TSX SCA 62
9 3 TSX SCP CU 4530 0.180
Integrated
channel
(channel 0) of
TSX SCY 2160
1 module
Junction box
TSX SCA 50
10 3 TSX SCP CU 6030 0.180
Subscriber
socket
TSX SCA 62
10 3 TSX SCY CU 6530 0.200
Cable for Uni-T elway
or Modbus bus
2 male SUB-D connectors
9 and 15-way
ATV 61,
ATV 71
(+ communi -
cation card
VW3 A3 303)
Subscriber
socket
TSX SCA 62
11 3 VW3 A8 306 2 0.150
(1) To order other elements for connection to the Fipio bus, please consult our “Automation platform Modicon
Premium – Unity & PL7 software” and “Automation platform Modicon TSX Micro – PL7 software” specialist catalogues.
TSX SCA 62
533153
TSX SCA 62
533153
TSX SCA 50
535577
TSX SCA 50
535577
TSX P ACC 01
533154
TSX P ACC 01
533154
Starters, drives
and communication 3
Communication via Uni-Telway bus
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