Endress+Hauser Proline t-mass 65 - Page 67

Proline t-mass 65 PROFIBUS DP/PA Commissioning
Endress+Hauser 67
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 2 by means of the local
display or with the aid of an operating program (e.g. FieldCare) in the CHANNEL function:
• TOTALIZER  SELECT TOTALIZER: Selection of a totalizer
• COMMUNICATION  CHANNEL: Selection of measured variable
Possible settings
Factory setting
SETTOT_TOTAL module
The module combination SETTOT_TOTAL (slots 4 to 5) consists of the functions SETTOT and
TOTAL. With this module combination:
• The totalizer can be controlled via the PROFIBUS Master (SETTOT).
• The totalizer value, is transmitted, including the status (TOTAL).
SETTOT function
In the SETTOT function, the totalizer can be controlled via control variables.
The following control variables are supported:
• 0 = Totalize (factory setting)
• 1 = Reset totalizer (the totalizer value is reset to 0)
• 2 = Accept totalizer preset
!
Note!
After the totalizer value has been reset to 0 or set to the preset value, the totalizing continues
automatically. The control variable does not have to be changed to 0 again to restart totalizing.
Stopping totalizing is controlled in the SETTOT_MODETOT_TOTAL module via the MODETOT
function.  ä 68
TOTAL function
For a description of the TOTAL function, refer to TOTAL module  ä 66
Data structure of the SETTOT_TOTAL module combination
Totalizer value/measured variable ID for CHANNEL function
MASS FLOW 277
CORR. VOLUME FLOW 398
OFF 0
Module Totalizer
function block
Totalizer value/
Measured variable
ID for CHANNEL function
TOTAL (slot 4) 1 MASS FLOW 277
TOTAL (slot 5) 2 MASS FLOW 277
Output data Input data
SETTOT TOTAL
Byte 1 Byte 1 Byte 2 Byte 3 Byte 4 Byte 5
Control Totalizer value (IEEE 754 floating point number) Status