CONTROL SYSTEM FOR SURGICAL ROBOT SYSTEM WITH SAFETY MONITOR

A control system for controlling a surgical robot system, the surgical robot system comprising at least one surgical robot, each of the at least one surgical robot comprising a base, and an arm extending from the base to an attachment for an instrument, the arm comprising a plurality of joints whereby the configuration of the arm can be altered, the control system comprising: a main controller configured to: receive communications from one or more devices of an operator console identifying inputs from an operator of the at least one surgical robot; generate control signals for controlling the movement of the at least one surgical robot arm based on the inputs; and send communications to the at least one surgical robot identifying the control signals; and a safety monitor configured to analyse at least a portion of the communications to and/or from the main controller to determine whether the surgical robot system is in a fault state, and in response to determining that the surgical robot system is in a fault state, cause at least one of the one or more devices of the operator console and the at least one surgical robot to transition to a safe state.