Commissioning
Proline Promag 55 PROFIBUS PA
88
Hauser
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 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 PA (GCA)
→
TOTALIZER (613)
→
SELECT TOTALIZER (6130): Selection of a totalizer
→
CHANNEL (6133): Selection of measured variable
Possible settings
Factory setting
SETTOT_TOTAL module
The module combination SETTOT_TOTAL (slots 2 to 4) consists of the functions SETTOT and
TOTAL.
With this module combination:
• The totalizer can be controlled via the automation system (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
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