I've been using a different controller and python to control my dynamixel servos. I really want to use the EZb and its software so I connected everything up to my EZb and just wanted to use the basic scripting to control the servos.
Found a couple of issues that may cause DJ some headaches when he wants to add more controls to take advantage of the capabilities of this digital servo.
Issue #1 : You set the status for table entry # 16 to 1 " No Return " . With this setting you can send instructions to the servo but you'll never get any data from them. It should be set to 2 " Read Only", this way if you send a command for a servos position, temp, torque etc, it will answer back with the data.
Issue #2: Your using table entry # 34 to control the servo speed, it should be table 32. Table #34 controls the torque limit of the servo. On your work bench it may look like your controlling the speed but add a load to it and you'll find that the servo will stop or dance the jitter bug! This setting is good if you want to experiment with joint compliance when reaching your goal position.