Commissioning
Proline Promag 53 PROFIBUS DP/PA
122
Hauser
Assignment of the measured variables to the AI module
The measured variables are permanently assigned to Analog Input function blocks 1 to 2 and cannot
be changed.
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
Input data
Assignment of the measured variables to the TOTAL module
The TOTAL module can transmit different totalizer values 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 PA (GCA)
→
TOTALIZER (613)
→
SELECT TOTALIZER (6130): Selection of a totalizer
→
CHANNEL (6133): Selection of measured variable
Possible settings
Factory setting
Module
Analog Input
function block
Measured variable
ID for CHANNEL function
AI (slot 1)
1
VOLUME FLOW
273
AI (slot 5)
2
MASS FLOW
277
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
3
273
TOTAL (slot 3)
2
VOLUME FLOW
m
3
273
TOTAL (slot 4)
3
VOLUME FLOW
m
3
273