VAMP 265 - 6.2. Communication Protocols; 6.2.1. PC Communication; 6.2.2. Modbus TCP and Modbus RTU

Technical description
6 Communication
6.2 Communication protocols
VM265.EN011
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6.2. Communication protocols
This protocols enable the transfer of the following type of data:
 events
 status information
 measurements
 control commands.
 clock synchronizing
 Settings (SPA-bus and embedded SPA-bus only)
6.2.1. PC communication
PC communication is using a VAMP specified command line
interface. The VAMPSET program can communicate using the
local RS-232 port or using ethernet interface. It is also possible
to select SPA-bus protocol for the local port and configure the
VAMPSET to embed the command line interface inside SPA-
bus messages. For ethernet interface configuration see chapter
6.1.4.
6.2.2. Modbus TCP and Modbus RTU
These Modbus protocols are often used in power plants and in
industrial applications. The difference between these two
protocols is the media. Modbus TCP uses Ethernet and Modbus
RTU uses asynchronous communication (RS-485, optic fibre,
RS-232).
VAMPSET will show the list of all available data items for
Modbus. A separate document “Modbus parameters.pdf” is also
available.
The Modbus communication is activated usually for remote
port via a menu selection with parameter "Protocol". See
chapter 6.1.
For ethernet interface configuration see chapter 6.1.4.