GE GEH6505A manual Specifications Terminology, Environmental Requirements

POWER LEADER™ Ethernet Gateway

Chapter 1 – Introduction

1–4 Specifications 1–6 Terminology

The specifications of the Ethernet Gateway are listed in Table 2.

Parameter	Value
Control power	90–132 Vac or 180–264 Vac,
	47–63 Hz; autoranging
	Power supply =150 VA min
	(contact your GE sales
	representative for additional
	voltage options.)
Modbus communications	Four RS485 ports, 1200 baud,
	2400 baud, 4800 baud, 9600
	baud and 19.2 Kbaud.
Ethernet communications	One PCL-843 16-bit Ethernet
	card; supports 10BaseT or
	10Base2 transport mediums.
Standards
UL Listed	508 & 840
CSA Certified	C22.2 No. 14

Table 2. POWER LEADER Ethernet Gateway specifications.

Following are definitions of some of the terms used in this document.

POWER LEADER – The GE family of comprehensive power management devices and system software used to minimize downtime and overall power cost.

PMCS – Power Management Control System software.

SCADA (supervisory control and data acquisition) – A group of systems including power management and control systems.

DCS (distributed control system) – A group of systems

including building automation and status monitoring systems.

Ethernet – An open, industry-standard, highperform-- ance network communications protocol that operates on 10BaseT or 10Base2 transport mediums and yields communications rates up to 10 megabits per second.

Modbus RTU (Remote Terminal Unit) – An open, industry- standard, high-performance network communica-

tions protocol developed by Modicon/AEG Schneider Automation.

1–5 Environmental Requirements

The environmental requirements of the Ethernet Gateway are listed in Table 3.

Parameter	Value
Operating temperature	0° C to +50° C
Storage temperature	–20° C to +80° C
Relative humidity	10% to 95% noncondensing
Vibration response and	IEC 255–21–1
endurance	Severity Class 1
Fast transient surge	ANSI C37.90.1
Radiated EMI withstand	ANSI C37.90.2
Electrostatic discharge	IEC 801–2
	Severity Class 4

Table 3. POWER LEADER Ethernet Gateway environmental

requirements.

Modbus-compatible device – Any device equipped with a Modbus RTU communications port.

Modbus master – A host computer running PMCS software.

RS485/EIA485 – A physical standard for multi-drop, high-speed, noise-tolerant communications over a twisted pair network; often used with the Modbus RTU protocol.

Commnet – A GE proprietary communications network standard.

Commnet-compatible device – Any meter, relay, trip unit, or other device equipped with a commnet commu- nications port.

Commnet segment – A group of one to four commnet- compatible devices (including at most one waveform- capturing meter) with all communication ports wired to a single Concentrator commnet port.

4