CHAPTER 3

COMMUNICATION INSTALLATION

3.1RS-232C

All EPM3000P and EPM300P-F instruments can be equipped with: the EIA RS-232C or the EIA RS-485.

RS-232C communication links a single instrument with a computer or device such as an RTU or PLC. Its capability is up to 100 feet. A standard 9-pin female serial port connector mounts on the instrument for direct connection to a computer with a 9-pin cable.

NOTE: ONLY THREE PINS ARE USED IN RS-232C. (See Figure 3.1).

 

 

 

 

BACK VIEW

RS-232 COMMUNICATION CONNECTION

 

 

 

 

 

 

8

9

10

11

12

13

 

 

 

 

7

 

 

 

 

 

CONNECTION FOR DB-9 FEMALE

 

 

 

 

20

 

 

 

 

 

 

 

 

 

PIN 2 - RECEIVE OF THE HOST/COMPUTER

6

 

 

 

 

21

5

COMMUNICATION

22

PIN 3 - TRANSMIT OF THE HOST/COMPUTER

PIN 5 - GROUND OF THE HOST/COMPUTER

4

 

CONVERTER

23

 

 

 

 

 

 

 

 

 

Model

 

24

 

 

 

 

3

 

 

5

4 3 2 1

 

SF-232DB3

25

 

 

 

 

 

2

 

 

 

 

 

 

 

DETAIL OF DB-9

 

 

 

 

26

 

 

 

 

 

 

 

 

 

9 8

7

6

1

 

 

 

 

27

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

28

 

 

 

 

LAPTOP

DB-9 CONNECTOR

A DIRECT PIN-TO-PIN CABLE CAN BE USED.

NO NULL MODEM IS REQUIRED.

Figure 3.1 RS-232C Communication Connection Installation

NOTE: TO AVOID GROUND LOOPS, THE NEUTRAL AND SAFETY GROUND (PIN 3) SHOULD BE CONNECTED TOGETHER AT ONLY ONE POINT.

3.2RS-485

NOTE: THIS SECTION APPLIES ONLY IF A COMMUNICATION OPTION WAS ORDERED.

Each EPM3000P has an unique address up to four digits long. This allows the user to communicate with up to 10,000 instruments. Standard baud rates are available up to 4800 baud. To select the proper baud rate, apply the following rules:

The unit operates up to 4800. For a smaller number of instruments over a long distance, use a lower baud. Optimal recommended baud rate is 1200 baud if noisy conditions exist.

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GE Industrial Systems

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GE EPM 3000P instruction manual Communication Installation, RS-232C, RS-485

EPM 3000P specifications

The GE EPM 3000P is a cutting-edge power monitoring and management device designed to enhance the reliability and efficiency of electrical systems. This innovative product combines advanced technology with user-friendly features to meet the growing demands of modern industrial and commercial environments.

One of the standout features of the EPM 3000P is its ability to provide real-time monitoring of key electrical parameters. This includes voltage, current, power, energy consumption, and power factor, all displayed on a high-resolution graphical LCD screen. The device supports a wide range of communication protocols, allowing for seamless integration into existing systems. It is compatible with Modbus, Ethernet/IP, and DNP3, enabling users to communicate and collect data from remote locations efficiently.

Another significant aspect of the EPM 3000P is its robust data logging capabilities. The device can store extensive historical data, which can be easily accessed for analysis and reporting. This feature is essential for identifying trends, diagnosing issues, and ensuring compliance with energy regulations. Customizable alarms and notifications further enhance its functionality, alerting users to potential issues before they develop into costly problems.

The EPM 3000P also emphasizes safety and protection for electrical systems. It is equipped with advanced protection features, including overvoltage, undervoltage, overcurrent, and phase loss detection. This ensures that equipment is safeguarded against electrical faults, reducing the risk of damage and downtime.

In terms of design, the EPM 3000P is both compact and rugged, making it suitable for installation in various environments. Its modular design allows for easy integration with other devices and systems, promoting scalability and future growth. The device is also compliant with international safety standards, ensuring reliability and peace of mind for users.

In conclusion, the GE EPM 3000P is a powerful tool for power management, offering users unparalleled monitoring, protection, and data analysis capabilities. With its advanced features, robust communication options, and user-friendly interface, it is positioned as an ideal solution for organizations looking to optimize their energy usage and enhance the resilience of their electrical systems. This makes it a preferred choice for industries aiming to improve operational efficiency and achieve sustainable energy practices.