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Building Technologies Division User Manual RWF55... CC1U7867en
Infrastructure & Cities Sector 11 Modbus interface 05.11.2013
11 Modbus interface
The tables that follow in this chapter specify the addresses of the readable and writable
words that the customer is able to access. The customer may read and/or write the
values using SCADA programs, PLCs, or similar.
The entries under Access have the following meanings:
R/O Read Only, value can only be read
R/W Read/Write, value can be read and written
The number of characters specified under Data type in the case of character strings
includes the final \0.
Char10 means that the text is up to 9 characters long. The final \0 character is then
added to this.
11.1 User level
Address Access Data type Signal reference Parameter
0x0000 R/O Float X1 Analog input InP1
0x0002 R/O Float X2 Analog input InP2
0x0004 R/O Float X3 Analog input InP3
0x0006 R/O Float WR Actual setpoint
0x0008 R/W Float
SP1
Setpoint 1
0x000A R/W Float SP2 (= dSP) Setpoint 2
0x1035 R/O Float --- Analog input InP3
(unfiltered)
0x1043 R/O Float --- Actual angular
positioning
0x1058 R/O Word B1 Burner alarm
Example: