Endress+Hauser Proline t-mass 65 PROFIBUS DP, Руководство по эксплуатации

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Commissioning Proline t-mass 65 PROFIBUS DP
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6.5.2 Selection of the GSD file in the measuring device
Depending on which GSD file is used in the PROFIBUS Master (class 1) system, the corresponding
GSD file has to be configured in the device by means of the COMMUNICATION
→
SELECTION
GSD function.
• t-mass GSD file
→
Select: MANUFACT. SPEC. (factory setting)
• PROFIBUS Profile GSD file
→
Select: PROFILE-GSD
Example
Before configuration takes place, a decision should be made as to which GSD file should be
used to configure the measuring device in the PROFIBUS master system. Below, the use of the
manufacturer-specific GSD file (complete device functionality) is shown as an example:
Select the manufacturer-specific GSD file in the measuring device by means of the SELECTION
GSD function.
COMMUNICATION
→
SELECTION GSD
→
Selection: MANUFACT. SPEC. (factory setting)
1. Before configuring the network, load the corresponding GSD file into the configuration
system/master system.
!
Note!
When installing the GSD file, always first use the GSD file with the extended format
(EH3x1545.gsd). However, if the installation or the configuration of the device fails with
this format, then use the standard GSD (EH3_1545.gsd).
E.g. for the configuration software Siemens STEP 7 of the Siemens PLC family S7-300/400:
Use the GSD file with the extended format (EH3x1545.gsd). Copy the file to the subdirectory
“...siemens\step7\s7data\gsd”. The GSD files also include bitmap files. These bitmap files are
used to display the measuring points in image form. The bitmap files must be saved to the
directory “...siemens\step7\s7data\nsbmp”.
If you are using PROFIBUS Master other than that referred to above, ask your PROFIBUS
Master system manufacturer which directory you should use.
2. The measuring device is a modular PROFIBUS slave, i.e. the desired module configuration
(input and output data) must be performed in the next step. This can be done directly by means
of the configuration software. An overview of the modules available is contained on Page 57 ff.
6.5.3 Maximum number of writes
If a non-volatile device parameter is modified via the cyclic or acyclic data transmission, this
change is saved in the EEPROM of the measuring device. The number of writes to the EEPROM
is technically restricted to a maximum of 1 million. Attention must be paid to this limit since, if
exceeded, it results in data loss and measuring device failure. For this reason, avoid constantly
writing non-volatile device parameters via the PROFIBUS!