The ID number (ident number) of the GSD file must be the same as the ID number of the de-
vice to ensure successful integration.
The Automatic Ident Number Adaption function allows a Type 3785 Positioner to be re-
placed by a Type 3730-4 Positioner without having to replace the GSD file in the host sys-
tem: The configured GSD file/ID number of the positioner is checked by the host (compatibil-
ity test) during the transition to cyclic data exchange. If the positioner is in the compatibility
mode, the GSD file/ID number of the Type 3785 Positioner (Profile 2.0 and Profile 3.0) is
also accepted by the positioner. The positioner changes to cyclic data exchange.
The functions of the active positioner model (active ID number) are only supported by the
process control system for communication.
Example: If the Type 3730-4 Positioner is operated in the compatibility mode for Type 3785
Profile 3.0, the diagnosis telegram then communicates as with Type 3785. Diagnosis bits,
which were first introduced with Profile 3.01, are not set. Additionally, the DI Blocks of
Type 3730-4 cannot be used as they are not available in Type 3785.
Proceed as follows to replace the Type 3785 Positioner with the Type 3730-4 Positioner:
NOTICE
–
The Type 3730-4 Positioner must be mounted and connected properly. Refer to
EB 8384-4 EN.
–
Configuration over PROFIBUS must be performed with the associated EDD or DTM of
Type 3730-4 as this is the only way to access the device parameters.
1. Change the bus address of Type 3730-4 to the same bus address as Type 3785. This can
be done over the PROFIBUS protocol (DEVICE_ADDRESS parameter), using the
TROVIS-VIEW software or in Code 46 in the positioner.
2. Start up the positioner (refer to EB 8384-4 EN).
Note: After initialization (in step 2), the positioner is in compatibility (adaptation) mode
(IDENT_NUMBER_SELECTOR parameter in the Physical Block). Do not change this setting.
KH 8384-4 EN 9
Cyclic data exchange
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