Operation
46
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.
Access via MODBUS
register address
5051
5053
5055
5057
Slave
Register
2007
2017
2610
6859
Fig. 32:
With just one request telegram, the MODBUS master reads out the measured values via the auto-scan buffer
of the measuring device.
Data area
Measuring values
Mass flow = 4567.67
Temperature = 26.5
Totalizer 1 = 56345.6
Actual system condition = 1 (system ok)
MODBUS RS485
Autoscan Buffer
Data
Data
Value
Value
Register
4567.67
4567.67
26.5
26.5
56345.6
1
56345.6
Scan List
1
No.
1
2
3
4
Proline Promass 84 MODBUS RS485
Data type
Float
Float
Float
Integer
Master
Data
Value
5051
4567.67
5053
26.5
5055
56345.6
5057
Scan
Register
2007
2017
2610
6859
Access
Read
Read
Read
Read
1
a0004407-en
Endress+Hauser
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