Doc# E107706 6 - 1
6: Using the External Displays
Electro Industries/GaugeTech
The Leader In Power Monitoring and Smart Grid Solutions
Electro Industries/GaugeTech
The Leader In Power Monitoring and Smart Grid Solutions
6: Using the External Displays
This chapter provides information on the Nexus® 1250/1252 meter’s external
displays.
6.1: Overview
Electro Industries offers three external displays for use with the Nexus® 1250/1252
meter. The P40N+ (and legacy P40N), P41N+, and P43N+ are LED displays that
provide easy-to-use access to the information stored in your Nexus® meter. The
P40N+ display also features a USB port for direct data download.
Plug one of the Nexus® external displays into Port 3 or 4 of the meter, using the cable
supplied with the display. The displays operate at 9600 baud. Port 3 is already
factory-set to 9600 baud (see Chapter 5 for communication details). To use a display
on another port, configure that port to operate at 9600 baud with the Communicator
EXT
TM
software. See Chapter 13 of the Communicator EXT
TM
4.0 and MeterManager
EXT Software User Manual for instructions on configuring the meter's port.
6.2: Nexus® P40N/P40N+, P41N+ and P43N+ LED External Displays
The Nexus® P40N and P40N+ LED external display can be used alone or as the
Master for a grouping of displays. The P40N/P40N+ prepares the data for the Slave
displays: the P41N+ and the P43N+. Once every second, it sends a request to the
Nexus® meter. All necessary data for the Slave displays is returned to the Master
display upon this request, and the Master sends the data to the Slaves in the proper
format.
The Nexus® P41N+ and P43N+ Slave displays listen to the Master, and display and
update values on the screen when they receive proper data. These displays have no
keypads. Data can only be received; it cannot be changed. If there is no data for more
than 5 seconds, "Communication Lost" appears on the bottom of the screen. The
following data is displayed when it is received:
• Amp Display (P41N+): Amp A, Amp B, Amp C
• Power Display (P43N+): Watt, VAR, PF
The Nexus® P40N+ LED external display has a USB port on the front for direct data
downloads. You can connect to the USB port with Communicator EXT
TM
software to
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