Table of Contents
Advertisement
Chapter 6. Programming the communciation
flow
Compared to an ordinary Modbus gateway, the configuration of a Modbus data
concentrator requires additional configuration steps. The data concentrator requires
knowledge of the type of slave devices connected and also how the data in those slave
devices is structured as well as what data items the master devices are interested in.
The following configuration steps must be performed:
1. Nominate the different types of the slave devices to be connected.
2. Configure how the data of interest in those slave devices is structured.
3. Define the size and location of the data area the master devices will see.
4. Define how the data of an individual slave device is mapped into that master data
area.
Slave Device Types Setup
One of the first steps to configure the data concentrator is to identify the slave devices
by a name.
Click on Configuration→Slave Device Types. In the Add Entry section enter a
name for the slave device and click the Save button.
Figure 6.1: Example of a Slave Device Types Setup page
Name
Textual identifier for a class of devices sharing the same Modbus register layout.
Fault Behaviour
Defines how a communciation error should be treated.
UMMBDC200-2201
Programming the communciation flow
23
Advertisement
Table of Contents
