Ether-S-Bus is a Industrial Control System (ICS) or Supervisory Control And Data Acquisition (SCADA) protocol. It is used for the communication with and between PCDs (Process Control Device) which are PLCs (Programmable Logic Controllers) manufactured by the company Saia-Burgess Controls Ltd. The protocol contains all necessary functions to completely configure, program a PCD and visualize its memory content and the states of the I/Os.

This SonicWALL signature identifies legitimate Ether-S-Bus network traffic.