Siemens Simatic S7-300 CP 341 - Sending Data with RK 512; Figure 2-13 Data Traffic When Sending with a Response Message Frame

Basic Principles of Serial Data Transmission
2.5 Data Transmission with the RK 512 Computer Connection
CP 341 Point-to-Point Communication, Installation and Parameter Assignment
Manual, 09/2008, A5E02191071-01 53
2.5.1 Sending Data with RK 512
Sending data with RK 512
The figure below shows the transmission sequence when sending data with a response
message frame using the RK 512 computer link.
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(00H)
(00H)
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50 DW (32H)
●
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(00H)
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DLE
1st Byte
2nd Byte
3rd Byte
4th Byte
5th Byte
6th Byte
7th Byte
8th Byte
9th Byte
10th Byte
11th Byte
12th Byte
●
●
nth Byte
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ETX
BCC
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STX
DLE
1st Byte
2nd Byte
3rd Byte
4th Byte
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ETX
BCC
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Figure 2-13 Data traffic when sending with a response message frame
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