MAG 8000 & MAG 8000 CT
10
SFIDK.PS.026.D9.02
3. Electrical connection
3.1 Electrical installation 3.6 V DC battery connector - male and pulse
connection terminals are placed in the right
side of the PCB board - see figure.
Connection for add-on interface modules is
placed on the left side.
HL = Hardware lock key connection
V = Push bottom for verification mode
To configure the outputs please see output
configuration in Flow Tool (PC-software) ID
400 to 425.
Connection diagram
A MODBUS over serial line cable must be
shielded.
At one end of each cable its shield must be
connected to protective ground. If a connector
is used at this end, the shell of the connector is
connected to the shield of the cable.
RS 232 connection
diagram
RS 485 connection
diagram
A RS 485 - MODBUS must use a balanced pair
(for D+ - D−) and a third wire (for the common).
For the balanced pair used in a RS 485-system,
a characteristic impedance with a value bet-
ween 100 and 120 ohms must be used.
The shield must always be connected to the
MAG 8000 or MAG 8000 CT encapsulation
using the cable clamp as shown in the figure
under cable installation.
Bus termination:
All RS 485 based networks must be terminated
correctly to function properly. A termination
must be placed at each end of the segment.
The MODBUS RTU module can add a 120 ohm
termination by placing the jumper beside the
terminals in position "ON".
The termination is set to "ON" from the factory.
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