9 Appendix
9.1 Data image of the technology modules
XI/ON: XNE-GWBR-2ETH-MB
10/2011 MN05002008Z-EN
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Process output data
The field output data is transferred from the XN-1SSI module to the connected field device.
The process output data is the data that is output from the PLC to the XN-1SSI module via a
gateway.
This is transferred in an 8 byte format as follows:
• 1 byte contains a Stop bit for interrupting communication with the encoder.
• 1 byte is used for controlling the comparison operations.
• 1 byte contains the register address of the data to be written to bytes 0 to 3 of this telegram
and a write request.
• 1 byte contains the register address for the data that is to be read with the next response
telegram.
• 4 bytes are used for representing the data that is to be written to the register with the
address specified at REG_WR_DATA.
Figure 85:
Process output
data