Commissioning
Proline Promag 53 PROFIBUS DP/PA
112
Hauser
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
!
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
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
Measured variable
ID for CHANNEL function
VOLUME FLOW
273
MASS FLOW
277
The following measured variables are available when the additional “batching” software is installed (order
option)
BATCH UPWARDS
1346
BATCH DOWNWARDS
1347
BATCH COUNTER
1348
BATCH SUM
1349
BATCHING TIME
1354
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