The variable name is $RC_RDY1 but I no longer think this is the correct question to ask. I forced $Move_Enable to 1025 and drives active drives in T1.
I noticed that $StopMess is asserted. Likely this is asserted because the PLC has dropped $Move_Enable to the robot.
So I am now thinking that the real issue has to do with something external to the robot.
Here are is a screen shot of the "Start Condition" Auto External outputs. The only ative messages are:
1. KSS 00203 General Motion Enable
2. KSS 27004 Brake Test Required (Safe Operation is loaded on the robot)
Thanks