ABB UNITROL 1020 - Page 26

Chapter 3 - Device Overview 
18 3BHS335648 E82 UNITROL 1020 User Manual
Analog
IO Term
.
48
BI3
Analog Input 3 –
49
AI3
Analog Input 3 +
50
BI2
Analog Input 2 –
51
AI2
Analog Input 2 +
52
BI1
Analog Input 1 –
53
AI1
Analog Input 1 +
X1300
77757371
76747270
X1302
CAN
RS-485
Remark:
The jumpers must be
plugged as shown in
the drawing on the left.
Ref.
Label
Signal Description
RS
-485 / CAN Terminal
70
RH
RS-485 +
71
CH
CAN High
72
RS
RS-485 shield
73
CS
CAN Shield
74
RL
RS-485 -
75
CL
CAN Low
76
CV
CAN Power 5V
77
CG
CAN GND