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FieldTalk Modbus Master Library, Delphi Edition
Library version 2.12.0
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Slave Device Failure exception response. More...
Slave Device Failure exception response.
Signals that a Slave Device Failure exception response (code 04) was received. This exception response is sent by a slave device instead of a normal response message if an unrecoverable error occured while processing the requested action. This response is also sent if the request would generate a response whose size exceeds the allowable data size.