6–14 EPM 9450/9650 ADVANCED POWER QUALITY METERING SYSTEM – INSTRUCTION MANUAL
USING THE EPM P40NPLUS LED EXTERNAL DISPLAY CHAPTER 6: USING THE EXTERNAL DISPLAYS
2. Open GE Communicator software and click the Connect icon in the Icon bar.
See the screen shown below.
3. Click the Serial Port button if it’s not already selected.
4. Set the Baud Rate to 9600. (It uses 9600 because it shares an existing Com
port for displayed readings.)
5. Click the Available Ports button and select the USB COM Port number from
the drop-down list.
6. Protocol should be Modbus RTU.
7. Flow Control should be None.
8. Echo Mode should be No Echo.
9. Click Connect. The software connects to the meter through the P40N
PLUS
.
Refer to the GE Communicator User's Manual for programming instructions.
(Click Help > Contents from the GE Communicator Title Bar to view the
manual online.)
6.3.2 Connect Multiple Displays
One cable (housing two-wire RS485 and two-wire power wires plus shield) is used to
connect the displays. The EPM 9450/9650 meter’s ports support 12 VA. Each P40N
PLUS
requires 3.3 VA (maximum 3.8 VA). The Master display (P40N
PLUS
) is the master in
communication. The Amp, Power and EPM devices are slaves in communication. Therefore,
the Master display (P40N
PLUS
) should be at the end of the daisy-chained units.
6.3.3 EPM P40N
PLUS
Display Modes
The EPM P40N
PLUS
LED external display has three modes:
• Dynamic Readings mode (section 6.3.4)
• EPM Information mode (section 6.3.5)
• Display Features mode (section 6.3.6)
Each mode is divided into groups. Most groups are further broken down into readings.
• Use the MODE button to scroll between modes.
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