Proline Promass 83 PROFIBUS DP/PA Commissioning
Endress+Hauser 93
TOTAL module - cyclic transmission of totalizer values
The measuring device has three totalizer function blocks. The totalizer values can be read out
cyclically by the automation system by means of the TOTAL module. Here, the cyclic transmission
of totalizer values to the automation system is effected in data blocks of 5 bytes. The totalizer value
is portrayed in the first four bytes in the form of floating point numbers in accordance with IEEE
754 standard. The fifth byte contains status information pertaining to the totalizer value which is
implemented in accordance with the PROFIBUS Profile Specification, Version 3.0.
Further information on the device status → Page 121
Data structure of the TOTAL module:
Assignment of the measured variables to the TOTAL module (totalizer value)
The TOTAL module can transmit different measured variables to the PROFIBUS master system.
The measured variables are assigned to the totalizer function block (TOTAL) by means of the local
display or with the aid of a class 2 master (operating program) in the “CHANNEL” parameter:
Configuration via the local display:
Function group → BASIC FUNCTION → PROFIBUS DP → TOTALIZER → SELECT TOTALIZER 1
→ CHANNEL
Configuration via the operating program:
Totalizer function block 1…3 → CHANNEL parameter
Factory setting:
The following settings are possible:
Byte 1 Byte 2 Byte 3 Byte 4 Byte 5
Process variable Status
Module Analog Input
function block
Measured variable factory
setting
“CHANNEL” parameter
factory setting
TOTAL (slot 7) 1 Mass flow 277
TOTAL (slot 8) 2 Mass flow 277
TOTAL (slot 9) 3 Mass flow 277
Measured variable ID for “CHANNEL” parameter
Mass flow (factory setting totalizers 1...3) 277
Volume flow 273
Corrected volume flow 398
The following measured variables are available when the additional “concentration measurement” software is installed
(order option)
Target mass flow 1164
Target volume flow 1167
Corrected target volume flow 1169
Carrier mass flow 1170
Carrier volume flow 1172
Corrected carrier volume flow 1174
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