9 Appendix
9.1 Data image of the technology modules
XI/ON: XNE-GWBR-2ETH-MB
10/2011 MN05002008Z-EN
www.eaton.com
179
9.1.3
RS×××-module
Process input data
Process input data is data from the connected field device that is transmitted via the
XN-1RS××× module to the PLC. The incoming data are stored in the receive-buffer of the
XN-1RS××× module, segmented and transferred to the PLC via the module bus and the
gateway.
The transmission is realized in a 8-byte format, structured as follows:
• 1 status byte, used to guarantee error free data-transmission.
• 1 byte diagnostic data
• 6 byte user data
Figure 82:
Data image PLC
input data
