The Allen Bradley drivers in Ignition include: ControlLogix, CompactLogix, PLC-5, MicroLogix, and SLC Allen-Bradley. They can connect directly through the Gateway to devices that support Ethernet communications.
The Modbus driver allows Ignition to communicate with any device that supports Modbus TCP protocol.
The Siemens drivers in Ignition provide support for connecting to S7-300, S7-400, and S7-1200 PLCs via TCP/IP using the S7 protocol.
The DNP3 driver allows Ignition to communicate with any device that supports the DNP3 protocol and set up Alias Point lists for those devices.
The TCP driver allows you to communicate to barcode scanners, scales, and more. They are strictly passive listeners and are configured to connect to one or more ports on a given IP address and any ASCII characters that are brought in as tags.