Endress+Hauser Proline Promag 55 PROFIBUS PA, Operating Instructions Manual

Page: 78 / 138

Commissioning Proline Promag 55 PROFIBUS PA
78 Hauser
6.5 Commissioning the PROFIBUS PA interface
!
Note!
• All functions required for commissioning are described in detail in the "Description of Device
Functions" manual (BA125D) which is a separate part of these Operating Instructions.
• A code (factory setting: 55) must be entered to change device functions, numerical values or
factory settings
→
Page 62.
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
→
Page 66
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
→
Page 67
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).