Allen-Bradley
Connect Allen-Bradley controllers to the ENLYZE Platform.
Allen-Bradley is the controller brand of Rockwell Automation and the leading automation vendor in North America. The brand has existed since 1903; after Rockwell acquired it (1985), the controllers carry the Allen-Bradley name, while the programming software (Studio 5000, formerly RSLogix) and the platform ecosystem (FactoryTalk) run under the Rockwell name. So when you encounter the name Rockwell in the field, it almost always refers to an Allen-Bradley controller.
The current controllers belong to the Logix platform and are all programmed with Studio 5000. They organize their data through symbolic tags (named variables) rather than absolute memory addresses.
ENLYZE connects Allen-Bradley controllers via the native EtherNet/IP protocol over Ethernet (CIP over TCP, default port 44818). Connections are made through the EtherNet/IP connector.
The manufacturer alone is not decisive, but rather the specific device and the addressing it uses. ENLYZE's EtherNet/IP connection reads the symbolic tags of the Logix generation. Older controllers of the PLC-5, SLC 500, and MicroLogix generations address their data through the PCCC method (files such as N7:0) and are not directly covered by the symbolic connector.
Automatic variable detection
The EtherNet/IP protocol supports Variable Discovery. The controller's tags are detected automatically, including program-scoped tags and the structure members of composite data types (UDTs). Unlike purely address-based protocols, the memory addresses do not need to be known in advance.
Device overview
The following table gives an overview of the Allen-Bradley families and typical devices. The Generation column distinguishes the current Logix generation (symbolic tags, programmed with Studio 5000) from the classic generations (PCCC addressing) and determines whether the EtherNet/IP connection applies. The Status column indicates whether we have already connected the family in the field.
ControlLogix
1756 ControlLogix 5570, 5580, GuardLogix 5570 / 5580
Logix
🧪 Likely possible, not yet field-tested
FlexLogix / SoftLogix
1794 FlexLogix, SoftLogix 5800
Logix
🧪 Likely possible, not yet field-tested
MicroLogix
1100, 1200, 1400, 1500
Legacy (PCCC)
check on request
🧪 Likely possible, not yet field-tested
SLC 500
1747 SLC 5/03, 5/04, 5/05
Legacy (PCCC)
check on request
🧪 Likely possible, not yet field-tested
PLC-5
1785 PLC-5
Legacy (PCCC/DH+)
check on request
🧪 Likely possible, not yet field-tested
Rule of thumb: connect Logix-generation controllers (ControlLogix, CompactLogix, GuardLogix, Micro800) via EtherNet/IP. The controller needs an Ethernet interface for this (built-in or as a communication module).
So far we have connected the CompactLogix family in the field. The other Logix families (ControlLogix, Micro800, FlexLogix / SoftLogix) are technically connectable via EtherNet/IP as well but have not yet been field-tested by us. The classic generations PLC-5, SLC 500, and MicroLogix address through PCCC and need to be checked case by case. If you want to connect such a device, feel free to contact us at support@enlyze.com so we can check the connection together.
If you have any questions, feel free to contact us at support@enlyze.com.
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