The MicroLogix is a very popular Micro Programmable Controller, and I often get calls asking how they can be added to an Ethernet network
While we've previously discussed options for adding Ethernet to PLC-5 processors, in today's article we'll discuss what it takes to add Ethernet to non-Ethernet MicroLogix.
Upgrading to a MicroLogix with built-in Ethernet
If you're upgrading from a single port MicroLogix 1000, 1200, or 1500, you'll have the same serial capabilities in a MicroLogix 1100.
The one situation where upgrading to an 1100 or 1400 might not be applicable is with MicroLogix 1500 systems using 1769 Expansion I/O, as it's the only MicroLogix with that capability.
Serial to Ethernet with the 1761-NET-ENI
However, these units currently cost more than a new MicroLogix 1400, so it's an expensive option not often recommended for the MicroLogix.
DH-485 network bridging to Ethernet with a ControlLogix Gateway
This solution consists of a 1756 power supply, chassis, Ethernet card, and a 1756-DH485 module with a 1761-NET-AIC.
DH-485 bridging to Ethernet with a Prosoft Gateway
But, as this device is at the end of its lifecycle and will only be available for a limited time, it's not a recommended option.
Prosoft 1769 Ethernet Module
It acts as a data table module, and is configured using the included Prosoft configuration software and serial cable.
I hope the above information on how to add Ethernet to a MicroLogix was helpful. If you have any comments, questions, suggestions, or corrections please feel free to use the “post a comment or question” link below.
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