Endress+Hauser Proline Promag H 500, Руководство по эксплуатации

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System integration Proline Promag H 500 PROFIBUS DP
102 Hauser
9.6 Address shifting configuration
9.6.1 Function description
The field device also makes acyclic communication services available in addition to cyclic
communication. This enables automation systems (PLCs), central engineering stations and
asset management systems to exchange data acyclically with the field device. This mode of
communication is typically used to configure the field device. Here, addressing at the
communication level is implemented by PROFIBUS for slot and index value pairs. The field
device makes process and configuration parameters available over a wide range of slot and
index values. Currently not all control systems are able to handle communication with such
a large address area. Therefore, the field device provides the option of mirroring
parameters to slot 0 with the "Address shifting configuration" function. All common
masters allow access to slot 0. In the PLC, slot 0 of the field device is generally on the
diagnostic address of the relevant field device.
9.6.2 Structure
With the "Address shifting configuration" function, 2 address areas are defined in slot 0,
the configuration area (index 190 to 221) and the assigned data area (index 230 to 245).
The configuration area defines which parameters should be managed.
The configuration area contains the indexes 190 to 221 with which up to 16 parameters
can be managed. Two indexes are used per parameter:
• The first index is for the slot value of the parameter
• The second index is for the index value of the parameter
The data area contains the indexes 230 to 245 in slot 0 and is permanently assigned to
the configuration area.
Configuration area
Fixed
assignment
Data area
Slot 0,
Index
User entry Slot 0,
Index
User entry
190 Slot value for parameter 1
→ 230
Value for parameter-specific
selection
191 Index value for parameter 1
192 Slot value for parameter 2
→ 231
Value for parameter-specific
selection
193 Index value for parameter 2
194 to 219
220 Slot value for parameter 16
→ 245
Value for parameter-specific
selection
221 Index value for parameter 16