9 Appendix
9.1 Data image of the technology modules
XI/ON: XNE-GWBR-2ETH-MB
10/2011 MN05002008Z-EN
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181
Process output data
Process output data are data which are sent from the PLC via the gateway and the
XN-1RS××× module to a connected field device.
The data received from the PLC are loaded into the 64-byte transmit-buffer in the XN-1RS×××
module.
The transmission is realized in a 8-byte format which is structured as follows:
• 1 control byte, used to guarantee error free data-transmission.
• 1 byte containing signals to flush the transmit- and receive buffer.
• 6 byte user data
Figure 83:
Process output
data