Novus AirGate-Modbus Bedienungsanleitung PDF herunterladen (Seite 15)

AirGate-Modbus

NOVUS AUTOMATION 15/22

35 RHT-Air up to the limit of 4 levels of depth, as illustrated in Fig. 16. This network topology is formed automatically at

the moment the network begins. One only needs to configure at least one AirGate-Modbus as a Multi-Master operation

mode, USB-Master or RS485-Master and the other equipment: (i) AirGate-Modbus, with the RS485-Slaves operation

mode; and (ii) RHT-Air, all with the same PAN ID. After the configuration, the equipment units will automatically be paired

based on the best communication link (LQI) that is found.

For a correct functioning of the wireless communication network, it is important for all equipment to have the same

firmware version. If you have AirGate-Modbus equipment with a firmware version below V1.23 and wish to use the new

functionalities available in this version, such as a tree network topology that is totally wireless, or operation with RHT-Air

equipment, you only have to update the firmware of all the equipment or use a AirGate-Modbus with the new version of

the firmware operating - such as RS485-Master - in another PAN ID, connected to interface RS485 in one of the

AirGates operating as RS485-Slaves of the first PAN ID, as shown in the Long Reach Application.

Fig. 12 - Totally wireless Tree network topology with AirGate-Modbus and RHT-Air equipment

MODBUS COMMANDS

As of the V1.23 Firmware version, the AirGate-Modbus begins to respond to Modbus commands that are forwarded to

your Modbus address, operating as a network slave. Commands forwarded to other slaves will be sent transparently.

The Modbus RTU commands (functions) are implemented and listed below, and they are interpreted by AirGate-Modbus.

For more information about each command and the Modbus protocol in general, access the site www.modbus.org.

1 2 ... 10 11 12 13 14 15 16 17 18 19 20 21 22

Keine Kommentare

Novus AirGate-Modbus Bedienungsanleitung Seite 15