EV/DV300 Series Power Meter
Chapter 3: Operation and Setting
V:2.0 Revised October 2018
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Access code is needed for going into the
parameter setting mode. Only the person
who knows the access code can do the
parameter setting. The access code is 4
digits decimal number. It is from 0000 to
9999. The factory default is 0000. After key
in the right access code, press V/A to go to
the first parameter setting page, otherwise
go back to the metering data display page.
The first screen: Setting address for
communication purpose in this page. It is
any digit number from 1 to 255. As in Fig
3.12, the address is 17. Changing method
is simple, press key to move cursor to the
digit need to change and press E key for
increasing or P key for decreasing. Then
press V/A key for acknowledgment and
go to the next setting page.
Note:
Each meter on the same RS485 net
should has different address according to
the Modbus-RTU protocol.
The second screen: Baud rate setting page.
The communication protocol Modbus. RTU
in meter is based on asynchronous mode: 8
data bit, no parity, 1 start bit and 1 stop bit.
Baud rate could be one of the five, 1200,
2400, 4800, 9600, 19200 bps. As in Fig 3.13,
the baud rate is 9600 bps. Press E key to
select one baud rate. Press V/A key, go to
the next setting page.
Note:
Please use the same baud rate in
meters on the same communication net.
