5 basic rs485 operation, 1 hook-up, Basic rs485 operation – Bronkhorst IQ+FLOW (from 01-07-2013) User Manual
Page 17: Hook-up, Section 3.5, Flow-bus setup, Modbus setup, Rs232 stand alone setup, Flow® instrument with a master device. iq, Fem al e rj- 45 f em al e rj- 45
Bronkhorst High-Tech B.V.
IQ+FLOW
17
9.17.045
3.5
Basic RS485 operation
This section is limited to the description of the interface between the IQ
+
FLOW® instrument with a master device. IQ
+
FLOW®
instruments always serve as slaves in a Modbus system. There is no mutual communication between Modbus slaves; only between
master and slave. The master device is for example a pc.
i
www
More detailed information about Modbus can be found at or any website of the (local)
Modbus organisation of your country (when available).
3.5.1
Hook-up
The illustrations below show examples of a number of IQ
+
FLOW® instruments in an RS485 bus-system. When the power
consumption is more than 15W, two seperated power networks are required due to the maximum power supply of
15 W for one PiPS.
FLOW-BUS setup
Male
RJ-45
Male
RJ-45
Male
RJ-45
Male
RJ-45
Y-Adapter cable
RJ-45 | 7.03.241
Male
End
Termin.
Female
9pin SubD
Male
Begin
Termin.
Male
RS-485
Multiport connector
RJ-45 | 7.03.299
0.5m patch cable
RJ-45 | 7.03.236
RS232 - USB2.0 adapter
RS232/USB | 9.09.122
RS232 cable
RS232 | 7.03.234
Male
RJ-45
Male
RJ-45
Male
RJ-45
Male
RJ-45
Male
RJ-45
Male
RJ-45
Female
RJ-45
Female
RJ-45
Male
RS-485
Male
RJ-45
Female
RJ-45
Female
RJ-45
9pin SubD
Female
FLOW-BUS interface
RS232 | 7.09.128
Y-Adapter cable
RJ-45 | 7.03.241
E-7000-05 PS
7.09.108 | 7.09.164
RS-485 kabel
RJ-45|7.03.467
End Terminator
RJ45 | 7.03.298
Begin Terminator
RJ45 | 7.03.298
Modbus setup
Male
RJ-45
Male
RJ-45
Male
RJ-45
Male
RJ-45
Y-Adapter cable
RJ-45 | 7.03.241
End Terminator
RJ45 |
Male
End
Termin.
Male
Begin
Termin.
Male
RS-485
Multiport connector
RJ-45 | 7
RS-485 kabel
RJ-45|7.03.467
.03.299
RS485 - USB2.0 adapter
RJ-45/USB | 7.03.470
Male
RJ-45
Male
RJ-45
Male
RJ-45
Male
RJ-45
Male
RJ-45
Male
RJ-45
Female
RJ-45
Female
RJ-45
Male
RJ-45
Female
RJ-45
Female
RJ-45
Y-Adapter cable
RJ-45 | 7.03.241
E-7000-05 PS
7.09.108 | 7.09.164
Begin Terminator
RJ45 | 7.03.297
7.03.298
RS232 stand alone setup
M
al
e
RJ-
45
M
al
e
R
S-
4
85
Male
RJ-45
F
em
al
e
RJ-
45
F
em
al
e
RJ-
45
Y-Adapter cable
RJ-45 | 7.03.241
Power Supply
PiPS-MV | 7.03.424
Adapter cable
RS232 - RJ45 | 7.03.426
9p
in
S
ub
D
F
em
al
e
RS232 - USB2.0 adapter
RS232 - USB | 9.09.122