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2. DF-1 Protocol - Wikipedia

   en.wikipedia.org/wiki/DF-1_Protocol

   DF-1 / DF1 protocol is an asynchronous byte-oriented protocol that is used to communicate with most Allen Bradley RS-232 interface modules. DF1 protocol consists of link layer and application layer formats. DF1 works over half duplex and full duplex modes of communication.

3. List of automation protocols - Wikipedia

   en.wikipedia.org/wiki/List_of_automation_protocols

   ControlNet – an implementation of CIP, originally by Allen-Bradley; DeviceNet – an implementation of CIP, originally by Allen-Bradley; DF-1 - used by Allen-Bradley ControlLogix, CompactLogix, PLC-5, SLC-500, and MicroLogix class devices; DNP3 - a protocol used to communicate by industrial control and utility SCADA systems

4. DeviceNet - Wikipedia

   en.wikipedia.org/wiki/DeviceNet

   DeviceNet was originally developed by American company Allen-Bradley (now owned by Rockwell Automation). It is an application layer protocol on top of the CAN (Controller Area Network) technology, developed by Bosch. [2] DeviceNet adapts the technology from the Common Industrial Protocol into an open standard. [3]

5. Allen-Bradley - Wikipedia

   en.wikipedia.org/wiki/Allen-Bradley

   Allen-Bradley is the brand-name of a line of factory automation equipment owned by Rockwell Automation.The company, with revenues of approximately US $6.4 billion in 2013, manufactures programmable logic controllers (), human-machine interfaces, sensors, safety components and systems, software, drives and drive systems, contactors, motor control centers, and systems of such products.

6. AS-Interface - Wikipedia

   en.wikipedia.org/wiki/AS-interface

   The ASi-5 system is open for the use of parameter interfaces such as e.g. IO-Link. IO-Link devices can be efficiently collected over long distances and could be integrated cyclically up to 32 bytes. 16 safe bits are available for safety-related switching devices, such as emergency stop, light curtains, safety switches and similar are available.

7. ControlNet - Wikipedia

   en.wikipedia.org/wiki/ControlNet

   ControlNet is an open industrial network protocol for industrial automation applications, also known as a fieldbus.ControlNet was earlier supported by ControlNet International, but in 2008 support and management of ControlNet was transferred to ODVA, which now manages all protocols in the Common Industrial Protocol family.