Galvanic Applied Sciences 943-TGS-CE, Operation Manual

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Revision 5 97 August 2021
Regardless of the format chosen, a Modbus list consists of three columns that are described
in Table 27.
Table 27: Modbus List Columns
Column Explanation
Modbus Items
Contains a series of “nodes” (folders) which are used to hold
data in different numerical formats depending on the specific
data being output. Points from the Available Points list can
be dragged and dropped into the appropriate node.
Register
Shows the Modbus register number for each data point.
Used for DCS programming to ensure that the DCS is
reading the correct registers.
Value
Shows the real time value of each register. Useful for
troubleshooting to ensure that the DCS is reading each
register correctly.
To add items to a Modbus list, left click on the desired point in the
Available Points
list and
drag it over to the Modbus list. Once the node name of the node to which the point is to be
added is highlighted in blue, release the left mouse button. The point will then be added to
the list in that note. When additional data points are added to a node, they are added at the
bottom of the list. Once data points have been added to a Modbus list, the Modbus list can
then be further edited by right clicking on a specific data point. A menu like the one shown
in Figure 64 will appear.
Figure 64: Editing a Modbus List
There are three options available. Clicking on
Up
will move the selected data point up in the
Modbus list, unless the data point is already at the top of the list in the node, in which case
this option will not have any effect. Clicking on Down will move the selected data point down
in the Modbus list, unless the data point is already at the bottom of the list in the node, in
which case this option will not have any effect. Clicking on Delete will remove the data point
from the list.
5.3.2.1 Enron Modbus Format
If Enron is chosen as the Modbus format, the Modbus list will contain 4 nodes as shown
in Figure 65.