E-Mon E-PS-A-RTU-N - Manual (Page 128)

Appendix A Technical Specifications
128 PowerSmart+ Advanced Power Quality Meter
Communication Ports
COM1 (Optional modules)
Serial EIA RS-232 optically isolated port
Isolation: 2,000 V RMS
Connector type: DB9 female.
Baud rate: up to 115.2 kbps.
Supported protocols: Modbus RTU and Modbus ASCII, DNP3 (with firmware V25.2.01 and
later).
RS-422/RS-485 optically isolated port
Isolation: 2,000 V RMS
Connector type: DB9 female.
Baud rate: up to 115.2 kbps.
Supported protocols: Modbus RTU and Modbus ASCII, DNP3 (with firmware V25.2.01 and
later).
Ethernet Port
Transformer-isolated 10/100BaseT Ethernet port.
Connector type: RJ45 modular.
Supported protocols: Modbus/TCP on Port 502, DNP3/TCP on Port 20000 (with firmware
V25.2.01 and later).
Number of simultaneous connections: 4 (4 Modbus/TCP or 2 Modbus/TCP + 2
DNP3/TCP).
Dial-up Modem
Transformer-isolated internal 56K modem.
Connector type: RJ11.
Supported protocols: Modbus RTU and Modbus ASCII.
COM2
RS-422/RS-485 optically isolated port
Isolation: 2,000 V RMS
Connector type: removable, 5 pins.
Wire size: up to 14 AWG (up to 1.5 mm
2
).
Baud rate: up to 115.2 kbps.
Supported protocols: Modbus RTU and Modbus ASCII, DNP3 (with firmware V25.2.01 and
later).
Real-time Clock
Accuracy: typical error 30 seconds per month @ 25°C
Log Memory
Onboard memory with battery backup: 1 Mbytes.
Display Module
Display: high-brightness seven-segment digital LEDs, two 4-digit + one 6-digit windows
Keypad: 6 push buttons
Communication: EIA RS-485 port with 12V supply voltage
Connector type: DB15, 15 pins
Wires size: up to 14 AWG (up to 1.5 mm 2 )