User manual

VCDS - Open Controller- Section 5-A
This 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.