Endress+Hauser PROFI BUS Proline Promag 53 PROFIBUS DP Operating Manual page 112

Commissioning
!
112
Assignment of the measured variables to the AI module
The AI module can transmit different measured variables to the PROFIBUS master (Class 1).
The measured variables are assigned to the Analog Input 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:
BASIC FUNCTION (G) → PROFIBUS DP (GBA) → FUNCTION BLOCKS (612) →
BLOCK SELECTION (6120): Selection of an Analog Input function block →
CHANNEL (6123): Selection of a measured variable
Possible settings
Measured variable
VOLUME FLOW
MASS FLOW
The following measured variables are available when the additional "batching" software is installed (order
option)
BATCH UPWARDS
BATCH DOWNWARDS
BATCH COUNTER
BATCH SUM
BATCHING TIME
Note!
The measured variables for the additional "batching" software are available only when they are
installed in the measuring device. If the measured variable is selected even if the additional software
is not installed, the value "0" is transmitted to the PROFIBUS master (Class 1) for the measured
variable.
Factory setting
Module
AI (slot 1)
AI (slot 5)
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 → Page 137
Input data
Byte 1 Byte 2 Byte 3
Totalizer value (IEEE 754 floating point number)
Analog Input Measured variable
function block
1 VOLUME FLOW
2 MASS FLOW
Byte 4 Byte 5
Status
Proline Promag 53 PROFIBUS DP/PA
ID for CHANNEL function
273
277
1346
1347
1348
1349
1354
ID for CHANNEL function
273
277
Endress+Hauser