28
Installation
3.8 Modbus Card Connections
Refer to the documentation supplied with the Modbus Card for more information.
1.
Remove power from the instrument.
2.
Make the connections as shown in
. Make sure that the shield
is connected to a threaded spacer on the board.
3.
Refer to
Configuring New Components on page 54
for operation setup instructions
Figure 25
Modbus Card Connections
1.
Jumpers
3.
Jumper setting for network termination with full duplex
2.
Terminal Block
–
Refer to
for terminal assignments.
4.
Jumper setting for network termination with half duplex
Table 11 Modbus (RS485) Card Terminal Assignments
Terminal Modus
RS485
Designation
1
Not Used
2
Not Used
3
Output –
4
5
Input –
6
Input +
7
PE (Protective Earth)
1
2
3
4
5
6
7
1
2
3
4
5
6
7
2
1
3
4
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