FIELDBUS COMMUNICATION
STATUS
Approved
SECURITY LEVEL
Public
DOCUMENT ID.
1SFC132374M0201
REV.
B
LANG.
en
PAGE
7/23
© Copyright 2019 ABB. All rights reserved.
2.3.
Connection Setup
In order for Modbus to function properly the PSE must be connected point-to-point with a
Fieldbus Plug Accessory (PS-FBPA) as seen in Figure 2. Further the PS-FBPA must be con-
nected to one of the ports named X1 to X4 on the MTQ22-FBP. The Modbus master is in turn
connected to one of the Ethernet connections E1 or E2.
Figure 2: Device connections required to enable a Modbus TCP connection between the PSE
and a Modbus master.
The cable connecting the PS-FBPA and the MTQ22-FBP, a CDP19-FBP .100 cable must be pur-
chased separately. A spring terminal block connector must also be installed on the separate
cable and connected according to Figure 3.
Figure 3: MTQ22-FBP port connection specification.
