Compatibility With Previous Model - Endress+Hauser Dosimass Modbus RS485 Operating Instructions Manual

System integration
38
Configuration of the scan list via Modbus RS485
Carried out using register addresses 5001 - 5016
Scan list
No. Modbus RS485 register
0 5001
... ...
15 5016
Reading out data via Modbus RS485
The Modbus master accesses the data area of the Modbus data map to read out the current
values of the device parameters defined in the scan list.
Master access to data area
Data area
Device parameter value
Value of scan list register 0
Value of scan list register 1
Value of scan list register ...
Value of scan list register 15
* Data type depends on the device parameters entered in the scan list.
** Data access depends on the device parameters entered in the scan list. If the device parameter entered
supports read and write access, the parameter can also be accessed via the data area.
9.3

Compatibility with previous model

If the device is replaced, the measuring instrument Dosimass supports the compatibility of
the Modbus registers for the process variables and the diagnostic information with the
previous model. It is not necessary to change the engineering parameters in the
automation system.
The Modbus registers are compatible but the diagnostic numbers are not. Overview of
the new diagnostic numbers →  44.
Data type
Integer
Integer
Integer
Via register addresses 5051-5081
Modbus RS485 register
Start register End register
(Float only)
5051 5052
5053 5054
... ...
5081 5082
Dosimass Modbus RS485
Configuration register
Scan list register 0
...
Scan list register 15
Data type* Access**
Integer/float read/write
Integer/float read/write
... ...
Integer/float read/write
Endress+Hauser