Longitudinal Parity (Bcc Comparison); For Additional Information - Siemens SIMATIC TI505 Installation And Operation Manual

S5 unlink adapter
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Receiving with the 3964R Procedure (continued)
Longitudinal Parity
(BCC Comparison)
For Additional
Information
3-12
TIWAY I Network Communication
The BCC error check byte is calculated by an exclusive-OR of all data bytes
contained in the message. The terminating characters DLE and ETX are
also included in the BCC calculation.
For more detailed information concerning the RK 512 protocol and 3964R
transfer procedure, as well as available commands, please refer to the
manuals shipped with your CP 525 module.
S5 UniLink Adapter Installation and Operation

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