In the long-term maintenance of the PLC controller of Rockwell AB, this paper summarizes the knowledge of some A-B PLC controllers and some practical and effective troubleshooting methods of common faults in actual production. The hardware series of Rockwell A-B PLC include PLC5, ControlLogix, SLC500, Micrologix, etc; Commonly used communication software includes rslinx, etc; Monitoring interface software InTouch, RSView32, etc; Programming software: rslogix5, rslogix500, rslogix5000. Now, the PLC controller of A-B used in our factory and the troubleshooting methods of common faults are briefly introduced.   There are two types of A-B PLC controllers used by Zhaotong cigarette factory, one is PLC5 and the other is SLC500. Both power modules do not occupy slots, but the difference is that the CPU module of PLC5 does not occupy slots, and the CPU of SLC500 occupies slots, and the former is large and the latter is small. The programming software for PLC5...

Rockwell PLC point I/O series has modular I/O suitable for flexible and low-cost applications, which is the key to the successful design and operation of the control system. As the main member of Rockwell Automation integration architecture, its perfect diagnostic function and configurable characteristics make the product applicable to any automation system, and reduce the engineering cost through standardized design. It can be used in remote device panel and local control panel, and can be accessed from multiple locations, including the Internet. This product fully meets the needs of users, with a density of 1 to 8 points, which can reduce the cost and size of the system.   Features include channel level diagnostics for fast troubleshooting, a variety of termination options and flexibility that can save money, cabinet space and debugging / troubleshooting time, the ability to mix / match safe i/o on the same bus, and devicelogix for local control and fast...

As part of the Rockwell product family, rack based I/O is designed for specific Allen Bradley ® Controller. Customers can install I/O locally in the same rack as the controller. In addition, by using the I/O communication network, customers can allocate I/O closer to sensors and actuators, thereby reducing wiring costs.   1746 SLC I/O Module Bulletin 1746 SLC ™ I/O module is a part of Rockwell SLC 500 control platform. Rockwell Automation announced that its bulletin 1746 I/O module will be discontinued on August 31, 2018 and will no longer be sold. It is recommended that customers upgrade to bulletin 5069 compact i/o used with Logix control platform ™ modular.   1756 ControlLogix Module Rockwell's bulletin 1756 ControlLogix ® The rack based module provides comprehensive digital quantity, diagnostic digital quantity, analog quantity, motion control, special function I/O and calculati...

1、 Series 90-30 PLC   Today's production is under pressure to require a wider range of control solutions to make operation more flexible. Therefore, GE Fanuc provides series 90-30 PLC to provide a variety of functions from simple relay replacement to complex mid-range automatic control. Series 90-30 has more than 100 discrete and analog I/O modules, as well as an innovative structure and modular design, which can fully meet your application needs and expand the system as your enterprise grows.   Product Details：   Series 90-30 CPU   For entry-level applications that require less I/O, 90-30 CPUs embedded in the backplane can be used, so that all slots are used for I/O modules. The high-performance CPU is based on Intel's 386EX processor for fast computing and large throughput. They can control 4096 I/Os at most, the minimum user memory of high-performance CPU is 32K, and can be programmed in a variety of standard languages.   The new CPU374 has an...

The PLC-5 controller is in the central position of the control system, integrates the existing and future systems through ethernet/ip, ControlNet and DeviceNet, and provides the interconnection between SLC 500, ControlLogix and Micrologix processors. Because the PLC-5 processor has built-in network connection, PLC-5 makes the control structure flexible enough to establish economic connection between a wide range of equipment.   The minimum configuration of a PLC-5/1771 control system includes a programmable controller module and some input and output modules and power supply modules installed on a rack. The controller with communication port can be selected as required. PLC-5 can reach 512 input and output points at most. All PLC-5 processors have remote I / O interfaces. Some PLC-5 processors have local extended I / O interfaces. Some PLC-5 processors have local extended I / O interfaces. Some PLC-5 processors have a ControlNet communication int...