EV/DV300 Series Power Meter
V:2.0 Revised October 2018
5. Single Phase 2 wire
(Wiring mode set 0)
6. Single Phase 3 wire
(Wiring mode set 0)
2.4 I/O Wiring Method
I/O option for EV/DV300 series meter can be 6 digital input, 2 relay output (or 2DO), 2 analog
output (or 1PO) and a RS485 communication port.
Digital Input
There are 2 digital inputs in the EV300 series meter (can be extended to 6 digital input) can
be used as monitoring switch status and other digital input. DI1, COM1 (17, 18), DI2,
COM2(19,20), DI3, COM3 (21, 23), DI4, COM3 (22, 23), DI5, COM4 (24, 26), DI6, COM4 (25,
26) are the terminal name and number. DI3 and DI4 use COM3 together while DI5 and DI6
use COM4. The simplified digital input diagram is as Fig 2.15: