Delta Din-rail Power Meter DPM- D510 User Manual
3- 10
The following table lists the symbols used in the diagram.
Symbol
Description
Grounding Current transformer
Terminal
block
Voltage transformer Fuse
3.3.2
Communication Characteristics
Communications Specifications:
Max. Communication
Distance
1200 m
Baud Rate
9600, 19200, 38400 bps
Max. Connection
Number
32
Data Length
8-bits
Communication
Protocols
Modbus RTU
Parity
None, Odd, Even
Function Code
03, 06, 10
Stop Bits
1
Use shielded twisted-pair cables for RS485 communication. When connecting multiple devices in series,
use the wiring method in the following diagram.
Connect the D+ communication terminal for all devices on the same twisted pair cable. Connect the D-
terminals on the other twisted pair cable. Ground the cable shield. Install a terminal resistor on the
terminal device as shown.
Use cables with a diameter of 14–20 AW G.
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