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Component Location
Front View of BDFB (typical)
Wiring Diagram
VIM1EC meter is connected via RS485 daisy-chain network either to a GPS system equipped with Millennium® I
or Pulsar Plus controller or to a Gateway Assembly.
RS485 Network:
1.
RS485 connection to previous RS485 device
First VIM1EC connects to either a Gateway or to a GPS system RS485 network.
•
Additional VIM1EC connects to either the previous RS485 device in a network
•
mastered by either a Gateway Assembly or by a GPS system controller.
2.
Gateway Assembly connection for terminating resistor
Gateway Assembly with one BDFB - install the terminating resistor (TR 450050642)
•
In Position 1 of the RJ485 adapter on the bracket.
3.
RS485 connection to next RS485 device or terminating resistor
Gateway Assembly multiple BDFBs or GPS system - install the terminating
•
resistor in the last RS485 device of the chain, into the RS485 port for the
next RS485 device
LAN Ethernet
Gateway Card
LED
Terminating
Resistor
ABB Device
Comm Cables
Page 2
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Gateway Assembly - if Present
Pre-Wired
Position 1
Pre-Wired
Position 2
Position 3
To DC Bus Bars
Left Branch
ABB Device Comm Cables
(RS485 devices are also known as ABB Device Comm devices)
H569445 G101 and G103
GPS or Gateway
RS232
(Craft Part)
Bracket
Right Branch
Controller of
Gateway
ABB Device Comm Cables
RS485 Daisy Chain
BDFB Gateway_QSG
Gateway Assembly
H569445 G7 and G8
VIM1/VIM1EC meter)
480 PNG 63k
GPS system—if Present
RS485
To next RS485 device
(VIM1EC , etc.)
VIM1EC
Maximum 16
VIM1ECs
First VIM1EC
Terminating
Resistor
Rev. 2.0
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