Hypertherm THC ArcGlide - Manual (Page 249)

ArcGlide THC Instruction Manual 806450 249
Appendix A
ArcGlide THC Serial Communication Protocol
Overview
The Hypertherm ArcGlide THC can communicate with a CNC using RS-422 serial communications. It uses a serial
protocol which contains commands for setting parameters within the ArcGlide THC and for setting and switching
operating modes. This section provides the command IDs, data format, and example messages and responses.
 This Appendix is intended for the development of RS-422 serial protocol for ArcGlide
THC communications. If you are replacing a Command
® THC with the ArcGlide THC, no
additional coding should be required, and neither the hardware installer or machine
operator needs the information contained in this section.
ArcGlide THC Operation
Because Hypernet communications take advantage of real-time signals between the ArcGlide THC and a CNC,
Hypertherm recommends Hypernet communications. See
Hypernet plasma interface board (141162) on page 91 for
Hypernet installation. RS-422 communications are for configurations where Hypernet communications are not possible.
Serial Protocol
The ArcGlide THC supports RS-422 serial communications with the CNC. If you are familiar with the Command THC,
the ArcGlide supports the same protocol, format, and commands as the Command THC. The ArcGlide also supports an
extended message set to be used to access the additional functionality that the ArcGlide provides.
The serial frame runs at the following settings:
19200 baud 1 stop bit
8 data bits no parity