Communication Characteristics - Delta DPM-C501L Operation Manual

3.3.3 Communication Characteristics


Communications Specifications:
Max. Communication
1200 m
Distance
Max. Connection
32
Number
Communication
MODBUS RTU
Protocols
03, 06, 10,
Function Code
FE (only available for
DPM-C502)

Use two-wire cables for RS-485 communication.

The D+ communication terminal for all devices should be connected on the same twisted pair cable. The
D- terminals should be connected on the other twisted pair cable. The insulation net is grounded. The
device on the end terminal needs to have terminal resistor installed on it.

Use cables with a diameter of 14 to 24 AWG.
C h a p t e r 3 I n s t a l l a t i o n
Baud Rate
9600, 19200, 38400
Data Length
8
Parity
None, Odd, Even
Stop Bit
1
3_
3 - 7