Appendix A: Xcd Packet Format - ControlByWeb XW110 User Manual

XW110/XW111 WiFi™ Users Manual

Appendix A: XCD Packet Format

The XW-110 and XW-111 sensors send data contained in a TCP/IP packet. To keep the packets small
they are not HTTP.
XS-110 Temperature Sensor Packet
Function Code
1 byte
Where:
Cmd: (1-byte) 1-byte format identifier
Data:
XS-111 Digital Sensor Packet
Function Code
1 byte
Where:
Cmd: (1-byte) 1-byte format identifier
Data:
Xytronix Research & Design, Inc.
MAC Address
6 bytes
MAC Address
6 bytes
Battery
1 byte (MSb identifies 5V
power)
Battery
1 byte (MSb identifies 5V
power)
Appendix A: XCD Packet Format
Temperature
4 byte IEEE-754 floating
point number
Temperature
4 byte IEEE-754 floating
point number
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