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3
Modbus type identification
Two types of Modbus are used with Stream compressors. The only possibility to identify which one is fitted in a
CoreSense module is to open the module lid, and to look at the circuit board and label.
Most of the features are the same; the main differences are explained in this chapter.
3.1
Modbus with 10 DIP-switch
Figure 1: View of the circuit board and label for 10 DIP-switch Modbus
The information given in the following chapters is based on the operation of the Modbus new version (12 DIP-
switch).
The input and holding register tables (Chapters 6.3.2 and 6.3.3) are valid for the 12 DIP-switch version but most of
the listed commands are also valid for the 10 DIP-switch model. The following input register data are specific to the
10 DIP-switch and therefore are not listed in Chapter 6.3.2.
Address
(Hex)
Contents
Qty
Min
Max
Unit
Data description
00E3
OAC of DLT fault
5
0
65535 1 time
One counter means one time
00E4
OAC of current sensor fault warning
6
0
65535 1 time
One counter means one time
00F9
OAC of motor overheat alarm
27
0
65535 1 time
One counter means one time
Table 1: Input register command specific to 10 DIP-switch module
