Setting up the Allen Bradley Micrologix 1100 & 1400 for Communications via Modbus RTU Slave
There have been many applications which I've used the very versatile AB Micrologix 1100 or 1400 and the customer wanted me to communicate to their DCS system using Modbus Slave. The AB Micrologix 1100/1400 is perfectly suited to accommodate this, as the ML 1100/1400 comes standard with two (2) communication ports which can be configured to communicate as Modbus Slave ports....
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I had an interesting experience with a customer who was utilizing an S7-1200 system. The PLC used was an S7-1200 series CPU1214C with various I/O modules, including a SM1231 RTD input module which would be used to read four (4) Pt-100 RTDs in the field. Seemed like a simple application, right?....
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A few years ago, the term PAC (Programmable Automation Controller) started to appear. Many PLC manufacturers began to market new PAC's along with their traditional line of PLC's (see AutomationDirect.com HERE for an example)....
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Changing the screen saver on an AB Panelview Component (PVC) display is simple - the second time you try it. The first time you attempt to change the screen saver will be a frustrating experience, unless you're reading this page!
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Allen-Bradley/Rockwell rolled out the Panelview Component mainly to offer a lower cost platform to engineers who required a cheaper "dumb" HMI to mate with a small PLC. The Panelview Plus platform has been tailored to integrate with the RS Logix5000 series of processors....
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AutomationDirect DL06 with 6" C-More Micro I recently had to put a PLC/HMI combination together on a tight budget... |
Allen Bradley Micrologix 1400: Just Awesome! If your project requires a standard PLC with great functionality... |
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Metasys N2 Comms. via Protocessor Protonode One of my clients approached me and inquired about bridging the data in an existing Siemens S7-224 to his MetasysN2 system... Read the full article
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TECO SG2 Programmable Logic Relay I needed a small PLC or Smart-Relay with a real time clock to augment an embedded controller application.... Read the full article |
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Earlier articles.... |