AX2xxx-B900 Axis (Real-Time Ethernet Interface)
The Beckhoff AX2000 resp. AX2500 drive is available with different (optional) Fieldbus interfaces. One variant is the AX2000 with TwinCAT Real-Time Ethernet interface (part no.: AX20xx-B900). The AX2xxx-B900 is implemented in TwinCAT as a real-time capable device if used in an Ethernet Miniport subnet. For an Overview of all currently supported devices for Ethernet Miniport, please ...see
 | If Real-Time Ethernet and "normal" Ethernet are both used on the same system with two different network adapters, the subnet addresses of these adpaters (NICs) must differ! The AX2xxx-B900 must be configured with the same subnet address (first two quadruples) as the Ethernet Miniport adapter in this case, of course. |
"AX2000-B900" tab
Diagnosis: This checkbox is deactivated for the AX2000-B900.
2 Byte PLC Interface: This checkbox is deactivated for the AX2000-B900.
No Real Time Flag: If the AX2000-B900 belongs to an Ethernet Miniport subnet but is not intended to be used for real-time data exchange, this box has to be checked.
K-Bus Update: Estimated internal update time for the -B900 interface.
Firmware Update: The firmware update dialog is called by pushing this button. With this function, the most recent firmware version for the -B900 slot interface can be loaded (via LAN or COM port).
Data Exchange:
- Divider: see:BK9000
- Modulo: see:BK9000
VLAN Support:
- Enable: Activates the VLAN support (see: IEEE 802.1Q,RFC3518) for the communication with this device. If enabled, the Ethernet frame is getting extended by 4 byte. These extension is called VLAN tag and contains for instance information about ID and priority .
- Priority: A 3 bit VLAN priority value as defined by IEEE 802.1D. Most switches contain two queues, a high and a low priority one. Therefore priorities between 0..3 are assigned to the high priority queue and 4..7 are assigned to the low priority queue at those switch types.
- Id: 12 bit VLAN identifier number as defined by IEEE 802.1Q.
"Outputs" Tab
Outputs
For further information about this tab, see: "AX2xxx Drive Tab - Outputs"
Diagnosis Inputs
The below shown variable DriveError has been added manually!
If the variables DriveError, DriveState2 (default) and DriveState3 (default) are added as described under AX2xxx Drive Tab - Inputs, they can be used for diagnosis purposes. If they are linked to a TwinCAT PLC process image for instance, they can be evaluated inside the PLC run-time system.
For further information about the error and warning codes of the AX2xxx drive, see: "AX2xxxx Drive - Status and Error Codes".