Display_Value - Endress+Hauser PROFI BUS Proline Promag 53 PROFIBUS DP Operating Manual

Commissioning
124
TOTAL function
For a description of the TOTAL function, refer to TOTAL module → Page 122
Data structure of the SETTOT_MODETOT_TOTAL module combination
Output data
SETTOT MODETOT
Byte 1 Byte 2
Control Configuration
Example of using the SETTOT_MODETOT_TOTAL module
If the SETTOT function is set to 1 (= reset the totalizer), the value for the aggregated total is reset
to 0.
If the aggregated total of the totalizer should constantly retain the value 0, the MODETOT function
must first be set to 3 (= totalizing is stopped) and then the SETTOT function must be set to 1 (=
reset the totalizer).
DISPLAY_VALUE module
Any value (IEEE 754 floating point number), including status, can be cyclically transmitted via the
PROFIBUS master (Class 1) directly to the local display using the DISPLAY_VALUE module (slot 6).
Display value assignment to the main line, additional line or information line can be configured via
the local display itself or an operating program (e.g. FieldCare).
Output data
Byte 1 Byte 2 Byte 3
Display value (IEEE 754 floating point
number)
Status
The measuring device interprets the status in accordance with PROFIBUS Profile Specification
Version 3.0. The statuses OK, BAD and UNCERTAIN are indicated on the local display by a
corresponding symbol. → Page 73
CONTROL_BLOCK module
By means of the CONTROL_BLOCK module (slot 7), the measuring device is able to process device-
specific control variables from the PROFIBUS master (Class 1) in cyclic data transmission (e.g.
switching on positive zero return).
Supported control variables of the CONTROL_BLOCK module
The following device-specific control variables can be activated by changing the output byte from 0
→ x:
Module
CONTROL_BLOCK
Byte 1 Byte 2
Totalizer value (IEEE 754 floating point number)
Byte 4 Byte 5
Status
Control variables
0 → 2: Positive zero return ON
0 → 3: Positive zero return OFF
0 → 8: UNIDIRECTIONAL measuring mode
0 → 9: BIDIRECTIONAL measuring mode
0 → 24: Run SET UNIT TO BUS function
Proline Promag 53 PROFIBUS DP/PA
Input data
TOTAL
Byte 3 Byte 4 Byte 5
Status
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