Greetings List: I just encountered a problem in the field where I have a -10Vdc to 10Vdc analog output from a robot controller card. The D/A signal from the robot is eight bits, -10 being zero and +10V being this highest count of 255(2^n -1). During normal operation this signal is held at -10 V dc. I would like to know how I can easily give this signal an external DC offset so that the output range of the card could be bumped up to 0 to 10V. This would allow it to meet with specs of the equipment receiving the signal. I do not want to damage this equipment and or effect the signal in any way. Would a simple +10V dc power supply with some type of over current protection and voltage regulation be the best alternative? Perhaps a high pass / low pass filter to get rid of any unwanted noise from the DC source? I have been reading articles on this list for a few years now and I know that some of the smartest minds are lurking out there so please feel free to let me know what you think at your convenience. Thanks In Advance: Stephen Bennett Kawasaki Robotics (USA), Inc.