A.9 real-time clock, A.10 display – SATEC PM135 Manual User Manual

Page 144

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‎Appendix A Technical Specifications

144

PM135 Powermeter Series

Connector type: removable, 3 pins.

Wire size: up to 14 AWG (up to 1.5 mm2).

COM2 (Optional module)

Ethernet Port

Transformer-isolated 10/100BaseT Ethernet port

Supported protocols: MODBUS/TCP (Port 502), DNP3/TCP (Port 20000), IEC
60870-5-104

Number of simultaneous connections: 4 (2 MODBUS/TCP + 2 DNP3/TCP).

Connector type: RJ45 modular.

PROFIBUS DP (IEC 61158)

RS-485 optically isolated PROFIBUS interface.

Connector type: removable, 5 pins.

Baud rate: 9600 bit/s – 12 Mbit/s (auto detection).

32 bytes input, 32 bytes output.

Supported protocols: PROFIBUS

RS-232/422-485 Port

RS-232 or RS-422/485 optically isolated port

Isolation: 3000 VAC 1 min

Baud rate: up to 115.2 kbps.

Supported protocols: MODBUS RTU, DNP3, and SATEC ASCII, IEC 60870-5-
101

Connector type: removable, 5 pins for RS-422/485 and DB9 for RS-232.

Wire size: up to 14 AWG (up to 1.5 mm2).

A.9

Real-time Clock

Standard Meter Clock

Non-backed clock

Accuracy: typical error 1 minute per month @ 25

C

Typical clock retention time: 30 seconds

TOU Module Meter Clock

Battery-backed clock

Accuracy: typical error 5 seconds per month @ 25

C (±2.5ppm)

Typical clock retention time: 36 months

A.10 Display

3.5" LCD Monochrome Display, 240 x 128 dots resolution

Tri-color LED load bar graph (40-110%)

COM1 RX/TX activity LED

Diagnostics indication LED

kWh/kvarh Pulse LED (for E and EH models)

Keypad: 5 push buttons

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