A surgical system comprising: a surgical hub configured to receive an impedance rate algorithm transmitted from a cloud computing system, wherein the surgical hub is communicatively coupled to the cloud computing system; and a surgical instrument communicatively coupled to the surgical hub, wherein the surgical instrument comprises: an end effector comprising: an ultrasonic blade configured to ultrasonically oscillate against tissue and a clamp arm configured to pivot relative to the ultrasonic blade an electrode configured to receive electrosurgical energy from a generator and apply the received electrosurgical energy to the end effector to weld tissue based on the generator generating a drive signal; an ultrasonic transducer acoustically coupled to the ultrasonic blade the ultrasonic transducer configured to ultrasonically oscillate the ultrasonic blade in response to the drive signal; a control circuit coupled to the end effector, wherein the control circuit is configured to perform the impedance rate algorithm to: receive a first target tissue impedance point; determine a first power level of the electrosurgical energy that corresponds to the first tissue impedance point; control the generator to deliver the electrosurgical energy at the first power level; determine a second target tissue impedance point; adjust the first power level to a second power level of the electrosurgical energy, wherein the magnitude of the adjustment is determined based on a time interval to reach the second target tissue impedance point, such that the first and second target tissue impedance points mimic a target impedance rise corresponding to a particular tissue coagulation time; and control the generator to deliver the electrosurgical energy at the second power level. a surgical hub configured to receive an impedance rate algorithm transmitted from a cloud computing system, wherein the surgical hub is communicatively coupled to the cloud computing system; and a surgical instrument communicatively coupled to the surgical hub, wherein the surgical instrument comprises: an end effector comprising: an ultrasonic blade configured to ultrasonically oscillate against tissue and a clamp arm configured to pivot relative to the ultrasonic blade an electrode configured to receive electrosurgical energy from a generator and apply the received electrosurgical energy to the end effector to weld tissue based on the generator generating a drive signal; an ultrasonic transducer acoustically coupled to the ultrasonic blade the ultrasonic transducer configured to ultrasonically oscillate the ultrasonic blade in response to the drive signal; a control circuit coupled to the end effector, wherein the control circuit is configured to perform the impedance rate algorithm to: receive a first target tissue impedance point; determine a first power level of the electrosurgical energy that corresponds to the first tissue impedance point; control the generator to deliver the electrosurgical energy at the first power level; determine a second target tissue impedance point; adjust the first power level to a second power level of the electrosurgical energy, wherein the magnitude of the adjustment is determined based on a time interval to reach the second target tissue impedance point, such that the first and second target tissue impedance points mimic a target impedance rise corresponding to a particular tissue coagulation time; and control the generator to deliver the electrosurgical energy at the second power level. an ultrasonic blade configured to ultrasonically oscillate against tissue and a clamp arm configured to pivot relative to the ultrasonic blade an electrode configured to receive electrosurgical energy from a generator and apply the received electrosurgical energy to the end effector to weld tissue based on the generator generating a drive signal; an ultrasonic transducer acoustically coupled to the ultrasonic blade the ultrasonic transducer configured to ultrasonically oscillate the ultrasonic blade in response to the drive signal; a control circuit coupled to the end effector, wherein the control circuit is configured to perform the impedance rate algorithm to: receive a first target tissue impedance point; determine a first power level of the electrosurgical energy that corresponds to the first tissue impedance point; control the generator to deliver the electrosurgical energy at the first power level; determine a second target tissue impedance point; adjust the first power level to a second power level of the electrosurgical energy, wherein the magnitude of the adjustment is determined based on a time interval to reach the second target tissue impedance point, such that the first and second target tissue impedance points mimic a target impedance rise corresponding to a particular tissue coagulation time; and control the generator to deliver the electrosurgical energy at the second power level. receive a first target tissue impedance point; determine a first power level of the electrosurgical energy that corresponds to the first tissue impedance point; control the generator to deliver the electrosurgical energy at the first power level; determine a second target tissue impedance point; adjust the first power level to a second power level of the electrosurgical energy, wherein the magnitude of the adjustment is determined based on a time interval to reach the second target tissue impedance point, such that the first and second target tissue impedance points mimic a target impedance rise corresponding to a particular tissue coagulation time; and control the generator to deliver the electrosurgical energy at the second power level.