Allen Bradley 1747-L20E can be described as a processor from the SLC 500 series with powerful networking capabilities. It not only can handle complex logic control, but its most crucial feature is the inclusion of an Ethernet interface (this is where the "E" in the model number comes from). This means it can be directly connected to the factory local area network by inserting an Ethernet cable, without the need for additional communication modules. For projects that require stable control and also want to achieve remote monitoring and data collection, this processor is an extremely cost-effective choice, saving both the cost of purchasing modules and the slot space on the rack. We are Hanyite Automation Technology the supplier, and we currently have stock. We offer original products. If you have any purchase requirements, please feel free to contact us at any time.
The main advantage of purchasing the Allen Bradley 1747-L20E is that it saves both time and money. Firstly, the built-in Ethernet port eliminates the need to spend a lot of money on an independent 1747-ENET communication module, saving a considerable expense. Secondly, the network speed is extremely fast, allowing the debugging personnel to download programs or view faults in the workshop from the office, eliminating the need to go to the site in hot weather. Moreover, its memory and computing speed are sufficient for most medium and small-sized devices, ensuring stable operation and reducing the likelihood of malfunctions.
This processor performs very well in terms of compatibility. It fully supports the entire 1746 series I/O module family. Whether you use digital input/output or analog modules, as long as they are SLC 500, they can be recognized once plugged in. In terms of integration, it can easily connect to Rockwell's EtherNet/IP network and communicate smoothly with the upper computer, HMI, or other Logix controllers (such as ControlLogix), with no issues in data exchange. It is highly suitable as a node for upgrading existing systems.
Dealing with Allen Bradley 1747-L20E is actually quite intuitive. The row of LED indicators on the panel is the best interface for interaction. When the RUN light is on, it indicates normal operation; when the FLT light is on, there is a fault; and when the BAT light flashes, it reminds you that it's time to replace the battery. It's very clear. In terms of operation, it comes with a three-position key switch: RUN (operation), PROG (programming), and REM (remote). When you want to modify the program, turn the key to the PROG position to prevent the equipment from malfunctioning; for normal operation, keep it in the RUN or REM position, which is both safe and convenient. Combined with the RSLogix 500 software, the ladder diagram programming interface also conforms to the habits of engineers.
| Processor core: | Allen Bradley 1747-L20E is equipped with a high-performance processor that operates quickly and has sufficient memory space, capable of handling complex control algorithms and numerous data processing tasks. |
| Built-in interfaces: | This is its signature feature. On the left is the common RS-232 serial port (DH-485/DF1 protocol), and on the right is a 10/100Base-T Ethernet port (RJ45 interface). Both ports are available, and both can be used with new or old devices. |
| I/O architecture: | It is based on the classic 1746 I/O rack architecture. It does not have fixed I/O slots (depending on the backplane), but is usually plugged into a 7-slot or 10-slot rack. There is a programming port on the right, and a status indicator light on the lower left corner. |
| Battery and storage: | There is a battery compartment and a memory card slot on the side. In case of power failure, the program is maintained by the battery. The program can also be backed up to a memory card to prevent data loss. |
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