Base Exceptions¶

exception selprotopy.exceptions.CommError¶

Base Class for Communications Errors.

exception selprotopy.exceptions.ParseError¶

Base Class for Parsing Errors.

exception selprotopy.exceptions.ProtoError¶

Base Class for Protocol Errors.

Communications Exceptions¶

exception selprotopy.exceptions.MalformedByteArray¶

Malformed Byte Array.

Byte array does not appear in expected format, likely due to truncated communications caused by a communications failure.

exception selprotopy.exceptions.ChecksumFail¶

Checksum Comparison Failure.

Checksum validation has failed for the captured message, likely due to communications failure.

exception selprotopy.exceptions.ConnVerificationFail¶

Communications could not be verified.

Parse Errors¶

exception selprotopy.exceptions.MissingA5Head¶

Response Message Missing A5 Byte Heading.

Parsing of returned binary SEL Protocol message failed due to lack of required A5[C1] heading.

exception selprotopy.exceptions.DnaDigitalsMisMatch¶

DNA Digital Sequence Doesn’t Match Definition.

Dereferencing of digitals in response does not match the relay’s DNA definition, may be caused by a communications error, or failed parse.

Protocol Exceptions¶

exception selprotopy.exceptions.InvalidCommandType¶

Invalid CommandType.

Invalid command type provided for Fast Operate, must be member of: [‘SET’, ‘CLEAR’, ‘PULSE’, ‘OPEN’, ‘CLOSE’].

exception selprotopy.exceptions.InvalidControlType¶

Invalid Control Type.

Invalid control type provided for Fast Operate, must be member of: [‘REMOTE_BIT’, ‘BREAKER_BIT’].