what is the difference between continuous stall torque and rated torque

i want to know the difference between a continuous stall torque
and rated torque and Standstill torque
because i need to remplace a servomotor that continuous stall torque is 9.3 Nm . And if I search on beckhoff catalog i find rated torque and standstill , How I can choose the new servomotor

Google, difference standstill torque, and you'll find a beckhoff explanation as the first result.