Endress+Hauser Cubemass DCI - Page 42

Operation Cubemass DCI MODBUS RS485
42 Endress+Hauser
2. Access to data via MODBUS
By specifying the register start address 5051 and the number of registers, the MODBUS master can
read out the measured values with just one request telegram.
A0004407-en
Fig. 25: With just one request telegram, the MODBUS master reads out the measured values via the auto-scan buffer
of the measuring device.
Data area
Access via MODBUS
register address
Measuring values Data type Access
5051 Mass flow = 4567.67 Float Read
5053 Temperature = 26.5 Float Read
5055 Totalizer 1 = 56345.6 Float Read
5057 Actual system condition = 1 (system ok) Integer Read
MODBUS RS485
Master
Slave
Data
2007
2017
2610
6859
Register
4567.67
26.5
56345.6
1
Value
Data
4567.67
26.5
56345.6
1
Value
Data
5051
5053
5055
5057
Register
4567.67
26.5
56345.6
1
Value
Scan List
1
2
3
4
No.
2007
2017
2610
6859
Scan
Register
Autoscan Buffer