Mitsubishi Electric MELFA FR CR800 Series User Manual page 30

Caution
When the communication becomes unstable
If you connect the computer and CR800-D/CR750-D/CRnD-700 series robot controller with a USB cable,
the communication may become unstable due to noise.
In this case, we recommend changing to LAN communication.
If you cannot communicate with the CR800-D series robot
controller with USB in Windows 7 (64-bit version)
Please perform Windows Update and update Windows to the latest state.
* When communicating with the robot controller of the CR800-D series with USB in Windows
7 (64-bit version), Application of "Security Update for Windows 7 for x64-based Systems
(KB3033929)" is mandatory.
1-30 1-30