Endress+Hauser Proline Promag 55 - Page 99

Proline Promag 55 PROFIBUS DP/PA Commissioning
Endress+Hauser 99
TOTAL module
The measuring device has three totalizer function blocks. The totalizer values can be cyclically
transmitted to the PROFIBUS (Class 1) via the TOTAL module (slots 2 to 4). The totalizer value is
represented in the first four bytes in the form of a floating point number in accordance with the
IEEE 754 standard. The fifth byte contains standardized status information corresponding to the
totalizer value.
Further information on the device status  ä 124.
Input data
Assignment of the measured variables to the TOTAL module
The TOTAL module can transmit different totalizer variables to the PROFIBUS master (Class 1).
The measured variables are assigned to the totalizer function blocks 1 to 3 by means of the local
display or with the aid of an operating program (e.g. FieldCare) in the CHANNEL function:
BASIC FUNCTION (G)  PROFIBUS DP (GBA)  TOTALIZER (613)  SELECT TOTALIZER
(6130): Selection of a totalizer  CHANNEL (6133): Selection of measured variable
Possible settings
Factory setting
Byte 1 Byte 2 Byte 3 Byte 4 Byte 5
Totalizer value (IEEE 754 floating point number) Status
Totalizer value/measured variable ID for CHANNEL function
VOLUME FLOW 273
MASS FLOW 277
OFF 0
Module Totalizer
function block
Totalizer value/
Measured variable
Unit ID for CHANNEL
function
TOTAL (slot 2) 1 VOLUME FLOW m

273
TOTAL (slot 3) 2 VOLUME FLOW m

273
TOTAL (slot 4) 3 VOLUME FLOW m

273