EUCHNER EKS FSA with Ethernet Interface - Manual (Page 34)

Manual EKS Electronic-Key Adapter Ethernet
8.3 Commands for writing and reading a read/write Electronic-Key
Write and read processes are always initiated by the PC/control system using a "command message".
The command message and reply message are also packed as user data in the TCP/IP frame.
The Electronic-Key system then sends a reply message to the PC/control system.
PC/Control system Electronic-Key-System
Command message
⎯⎯⎯⎯⎯⎯⎯⎯⎯→
Reply message
←⎯⎯⎯⎯⎯⎯⎯
Information!
On read/write Electronic-Keys with 116 bytes, the memory is organized in 4-byte blocks. This means a
multiple of 4-byte sized blocks must always be written.
The start address must be given in the range byte number 0 to byte number 112, always in 4-byte steps
(byte number 0, 4, 8 ... 112)!
However, during reading it is possible to access the memory by bytes without the above mentioned
restriction for writing.
Page 34/40 Subject to technical modifications 100420-02-01/09