Additional Information
Ethernet/IP
The LabVIEW Driver for Ethernet/IP is available for purchase, and supports using LabVIEW as an EtherNet/IP Class 1 Adapter (equivalent of slave). This driver can be used with an NI controller or from a computer connected directly to the PLC. This is a licensed driver, but its runtime-engine requires no license.
DeviceNet
Communication over DeviceNet requires the use of the PCI-8532, PXI-8532, or the NI 9882. For the full list of supported hardware and software, see the Related Links.
Modbus
Modbus communication is possible on some, but not all, Allen-Bradley PLCs. Consult your product manual to see if Modbus communication is possible on your PLC. Modbus communication can be performed without the DSC Module using the LabVIEW Modbus API. The LabVIEW Modbus API is a free, as-is (unsupported) library.
Serial
The manual for direct serial communication is available on the Allen-Bradley website.