Endress+Hauser Proline Promag 55 - PROFIBUS PA commissioning

Proline Promag 55 PROFIBUS DP/PA Commissioning
Endress+Hauser 89
6.5.2 PROFIBUS PA commissioning
The following steps must be carried out in the sequence specified:
1. Check the hardware write protection:
The WRITE PROTECT (6102) parameter indicates whether it is possible to write to the device
parameters via PROFIBUS (acyclic data transmission, e.g. via "FieldCare" operating program).
!
Note!
This check is not needed if operating via the local display.
BASIC FUNCTION (G)  PROFIBUS PA (GCA)  CONFIGURATION (610) 
WRITE PROTECT (6102)  One of the following options is displayed:
– OFF (factory setting) = write access via PROFIBUS possible
– ON = write access via PROFIBUS not possible
Deactivate the write protection if necessary  ä 71.
2. Enter the tag name (optional):
BASIC FUNCTION (G)  PROFIBUS PA (GCA) CONFIGURATION (610) 
TAG NAME (6100)
3. Configuring the fieldbus address:
Software addressing using the local display/operating program:
BASIC FUNCTION (G)  PROFIBUS PA (GCA) CONFIGURATION (610) 
FIELDBUS ADDRESS (6101)
Hardware addressing via miniature switches  ä 72.
4. Select the system unit:
a. Determine the units by means of the system units group:
MEASURED VARIABLES (A)  SYSTEM UNITS (ACA)  CONFIGURATION (040) 
UNIT MASS FLOW (0400) / UNIT MASS (0401) / UNIT
VOLUME FLOW (0402) / …
b. In the function SET UNIT TO BUS (6141), select the option SET UNITS, so that the
measured variables transmitted cyclically to the PROFIBUS master (Class 1) are transmitted
with the system units set in the measuring device:
BASIC FUNCTION (G)  PROFIBUS PA (GCA) OPERATION (614) 
UNIT TO BUS (6141)
!
Note!
• The configuration of the system units for the totalizers is described separately  see step 6.
• If the system unit of a measured variable is changed by means of the local operation or an
operating program, this initially does not have any effect on the unit that is used to transmit
the measured variable to the PROFIBUS master (Class 1). Changed system units of the
measured variables are not transmitted to the PROFIBUS master (Class 1) until the SET
UNITS option is activated in the function BASIC FUNCTION (G)  PROFIBUS PA (GCA)
 OPERATION (614)  UNIT TO BUS (6141).
5. Configuration of the Analog Input function blocks 1 to 2:
The measuring device has two Analog Input function blocks (AI modules), through which the
various measured variables can be cyclically transmitted to the PROFIBUS master (Class 1).
The assignment of a measured variable to the Analog Input function block is shown below
using the example of Analog Input function block 1 (AI module, slot 1).