BK9500 (USB Interface)
The Beckhoff BK9500 Bus Coupler is configured in TwinCAT under a "Virtual USB Interface". The following description explains the differences between the BK9500 and other Bus Couplers.
The USB Bus Coupler communicates via ADS with TwinCAT. For an Overview of all currently supported USB Bus Couplers, please see...
Diagnosis Inputs
Each fieldbus module contains status information which can be linked to TwinCAT (e.g. to to TwinCAT PLC). This status information are mostly identical at all Beckhoff fieldbus nodes (see CouplerState, MissedCnt)) and are described under -> "Status Information - Beckhoff Fieldbus nodes". Only the input variable BoxState is specific. This variable can contain the values which are described inside the below table. Additionally, each variable status is listed in the corresponding "Comment" field.
Variable | Data Type | Value | Description |
|---|---|---|---|
BoxState | UINT16 | 0x0000 | No error condition |
0x0001 | No new input information | ||
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"BK95x0/CPx8xx" Tab
Dip-Switch: The active dip-switch setting (USB address) of the USB Control Panel has to be edited here. If the BK9500 and his Bus Terminals have been found through ->"Scan Devices", the appropriate address has been set here automatically.
Diagnosis: This checkbox is deactivated at the BK9500.
2 Byte PLC Interface: This checkbox is deactivated at the BK9500.
K-Bus Update: According to the attached Bus Terminals, the estimated K-Bus update time is calculated and displayed here.
Search: If this button is pressed, the Device Handle is searched manually (usually not necessary).
Device Handle: Shows, with activated configuration and started TwinCAT System, the USB Device Handle for this device, which was obtained by the Operating System (and is currently valid).