User's Guide

17 September 2021

NG Series Industrial Wireless Gateway User Guide

DIVIGRAPH

Doc No. 20DD1980

Revision 4

NG Series Industrial Wireless Gateway device managers limit the number of field devices connected to

the gateway. This could be any combination of “IO”, “Router” or “Router IO” devices up to a total of 50

devices. Up to 9 child devices may connect to each router enabled device. The maximum number of hops

between the NG Series Industrial Wireless Gateway and a VP Series 2000 field device should be limited to

Move the Device or Gateway

Relocating a field device or reorienting its axis or orientation relative to the gateway as little as 6 cm (2

1/3 inch), or one-half of a 2.4 GHz wavelength, may improve signal strength.

Change Gateway

Change the gateway deployment by:

• Using the authorized 6dBi higher gain antenna on the gateway. Verify that the resulting narrowly

focused radio frequency distribution pattern meets your needs. OR

• Add gateways.

Verify Signal Strength

Check that the devices' signal strength are within guidelines. Use your NG Series Industrial Wireless

Gateway web interface to monitor device signal strength and packet error rates. Signal strength (RSSI)

should be above -85 dBm, and preferably above -78 dBm.

Validate Device Data

Using the NG Series Industrial Wireless Gateway device manager web-interface, verify the publication

status and that the measurements are displayed in the “Readings” tab.

Icon

Status

Description

Wireless signal icon with a cross

Not Joined

Device is not visible to the network.

It may be out of range, is restarting or is off.

Wireless Signal Icon

Joining

Device is busy negotiating to join the network.

Bold Wireless Signal Icon

Joined

Device joined and configuring.

Wireless Signal Icon with a tick

mark

Joined and

Publishing

Device configured and publishing PV data.

Initial publication of measurements may take some time after devices have joined the network. After the

initial period, during which the network is forming, measurements will be published at

1-minute intervals.

Use the data trend tab after selecting a VP Series 2000 sensor in the device tree to view a history of the

selected parameters.