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General| Brand | ABB |
|---|---|
| Model | TMD-T4 |
| Category | Measuring Instruments |
| Language | English |
Explains the Modbus protocol, its modes (ASCII/RTU), and generic/RTU message structures for TMD devices.
Details the generic message structure for Modbus communication.
Defines the specific frame structure for Modbus RTU communication.
Details the CRC-16 generation algorithm with C language examples.
Provides the C function for calculating CRC-16 checksums.
Describes the query message format for reading registers using Function Code 03.
Details the response message format for reading registers with Function Code 03.
Explains the query message for writing parameters using Function Code 10.
Details the response message for setting TMD parameters with Function Code 10.
Describes the query and response messages for the diagnostic function (Code 08).
Illustrates the diagnostic function with a query and response example.
Details the query message for reporting the slave identifier (Function Code 11).
Explains the response message for reporting the slave identifier and status.
Defines the structure of error messages sent from the slave to the master.
Lists and explains the different error codes transmitted by the slave.
Provides a comprehensive list of TMD registers, their addresses, and data types.
Details registers for reading instantaneous temperature values.
Details registers for reading maximum temperature values.
Guidance on resolving communication failures due to connection or data stream problems.
Recommendations for configuring RS232/485 converters for optimal communication.
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