Parity Even; Parity Odd; Toggle Bit - TR-Electronic C 58 Serie Benutzerhandbuch

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8.2.1.2 Parity even

The parity bit serves as control bit for the error detection during SSI data
transmissions.
The parity represents the checksum of the bits in the SSI data word. If the SSI data
word contains an odd number of "1", the special bit Parity even = "1" and
supplements the checksum to even parity. The Parity special bit is always defined at
the last digit of the position output. It is calculated from all previous bits. About that,
only one single Parity special bit is possible.

8.2.1.3 Parity odd

The parity bit serves as control bit for the error detection during SSI data
transmissions.
The parity represents the checksum of the bits in the SSI data word. If the SSI data
word contains an even number of "1", the special bit Parity odd = "1" and
supplements the checksum to odd parity. The Parity special bit is always defined at
the last digit of the position output. It is calculated from all previous bits. About that,
only one single Parity special bit is possible.

8.2.1.4 Toggle bit

The Toggle special bit is an additional bit in the SSI format and is attached after the
last data bit of the position output. After each error free SSI transmission sequence the
momentary condition of the Toggle bit is changed. In the event of an error the last
condition of the Toggle bit, before the error was occurred, is maintained.
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07/30/2020