大众车行车电脑说明书(11)

大众车行车电脑说明书

VCDS - Open Controller- Section 4-AThis screen will appear when VCDS is establishing communications with any of the Control Modules shown on the Select Control Module screen. Comm Status Shows the status of the current communications session. Once communications have been established: IC= Shows the number of times the session has been initialized. If IC increases beyond 1, communications are less than 100% reliable. TE= is a counter of transmitter errors within individual packets. TE greater than 0 can indicate unreliable communication. RE= is a counter of receive errors within individual packets. RE greater than 0 can indicate unreliable communication. Protocol indicates whether the controller speaks KWP-1281 , KWP-2000 , CAN, or UDS. Different functions and behavior can be expected depending on which protocol is used by each controller. VCDS communicates fine with all four of these protocols. A rotating cursor shows that communication is active.