Eaton PXG 900, User Manual

Page: 26 / 75

PXG 900 User's Guide - Firmware Version 4.3 - 1/9/2017
24
Modbus
On the Network Access tab, you can enable pass through mode for either Modbus RTU port as well as Network 2
(Ethernet). Doing so allows you to access the full, native Modbus map for the device. These maps are not provided
through the PXG, you'll need to access them from the device documentation.
Note that each Modbus pass through has its own port address. Thus, you can access the full register map for a connected device by simply
referencing this port in your TCP connection. When using pass through mode, you must use the actual Modbus Serial Address for the device.
This is also listed on the Device Mapping page and in the device list available through the Export button.
EMINT (INCOM only)
In some cases, you may need to use Eaton's legacy software to configure set points on INCOM devices. The PXG makes this easier by providing
a way to connect legacy software directly to the gateway via a UDP connection, allowing that software to then connect to all of the "downstream"
INCOM devices.
Setup
You enable this mode through Settings, on the Network Access tab. You can change the port as well.
An important point: INCOM networks can only have one master, and when EMINT mode is active the externally
connected software takes over that role. So, as long as EMINT mode is active, all INCOM devices are essentially
disconnected from monitoring by the PXG. The INCOM channel values won't be displayed and alarms for INCOM
devices can't be issued. For this reason, while EMINT mode is active INCOM devices will be shown as not
communicating in the PXG interface. Unless there's a valid reason to leave the external software connected to the
INCOM network, you should disable EMINT mode as soon as you've finished configuring INCOM set points.
: If you have a legacy Eaton PowerNet system, or some other reason to keep EMINT Mode Important
active, you should enable Trusted Hosts to ensure that only one INCOM master will be on the
network.