Installation guide

4-2 Hardware Setup
Figure 4-1 Board Configuration
Modbus Plus Expansion Board Catalog No. EXB015A01
All switches shown in ON (Down) position.
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J2
S1
D1 Modbus Plus Status LED
J1
DB9
Connector
Pin Description
1 Chassis Ground
2 TxA
3 TxB
D1
J4
Circuit Board
J3
PB1
PB1 Reset switch (Processor only)
To reset the board, turn control off then on
(cycle power).
D5
D4
D3
D2
D5 Power LED
D2 Error LED
D3 Status LED
D4 Status LED
ON