ABB XIO-08 - Wire Serial Communication Ports

28 | XIO USER MANUAL | 2106424MNAA
Figure 3-1: XCORE enclosure top mounting tabs and interior view
3.4.4 Wire serial communication ports
Wire the XIO serial communication (COM) ports to communicate with and power external devices. Wire for
communication according to the type of serial interface with the external device. Wire for power if there is
no external supply powering the external device.
IMPORTANT NOTE
: The max amount of current to all devices, inclusive and the controller, is 5 A
maximum.
This section provides wire length specifications per serial interface type, tables for port pinouts and
generic instructions for field wiring. There are also two examples of serial communication in the following
table.
Table 3-2: Serial communications specifications
Communication
type
Maximum wire
length
Termination
RS-232
50 ft (15 m)
Removable Terminal connector (8 POS), spring-cage
termination. Wire Gauge 16 AWG to 24 AWG. Use ferrules
without insulating collar, according to DIN 46228‑1 as
specified in
Table 3-3.
RS-485 or RS-422
4000 ft (1220 m)
Table 3-3: Ferrule specifications
Cross section
Length
0.25 mm²
5 mm to 7 mm
0.5 mm²
8 mm to 10 mm
0.75 mm²
8 mm to 10 mm
1 mm²
8 mm to 10 mm
1.5 mm²
10 mm