Deif AGC-3 User Manual

4.1.6 Slot #2, serial communication (option H)
Modbus (option H2)
Term. Function Description
29 DATA + (A) Modbus RTU, RS-485
30 GND
31 DATA - (B)
32 Not used
33 DATA + (A)
34 Not used
35 DATA - (B)
36 Not used
The serial communication line should be terminated between DATA + and DATA - with a resistor equal to the
cable impedance. The terminals 29/33 and 31/35 are internally connected.
Never connect the GND terminal 30 to earth. Only connect it to a third wire in the communica-
tion cable!
Profibus (option H3)
Term. Function Description
29 DATA + (B) Pin 3 on 9 pole sub-D connector
Pin 5 on 9 pole sub-D connector
Pin 8 on 9 pole sub-D connector
30 GND
31 DATA - (A)
32 DATA + (B)
33 GND
34 DATA - (A)
35 Not used
36 Not used
Never connect the GND terminal 30 to earth. Only connect it to a third wire in the communica-
tion cable!
AGC-3 installation instructions 4189340728
UK
Hardware
DEIF A/S Page 25 of 65

Deif AGC-3 Specifications

General

Brand	Deif
Model	AGC-3
Category	Controller
Language	English