1785-L20B 1785L20B AB AB PLC-5 Processor

1785-L20B 1785L20B AB AB PLC-5 Processor

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Product Details

The AB 1785-L20B is a PLC-5 Controller. 1785-L20B is part of the enhanced programmable controllers PLC-5 series. Programmable controller 1785-L20B is the main part of each control system based on the AB PLC-5 series. 1785-L20B merges I/O modules—including local, extended, and remote devices—on various types of communication interfaces into one coherent control system suited for various process control challenges. 1785-L20B has one built-in port dedicated for Data Highway Plus (DH+) communication interface. That port is marked as channel 1A. Besides that, 1785-L20B has one port that can be configured both as DH+ or Remote I/O (adapter or scanner). This port is marked as channel 1B. DH+ communication can be used both for remote programming and monitoring the 1785-L20B, and for creating a peer-to-peer communication network between the other various PLC-5 controllers. Remote I/O connection is used for real time data exchange between the controller and an I/O operator interface and other devices. On the front panel of 1785-L20B controller, there is a 25-pin connector marked channel 0. This is an optically isolated EIA RS232C port. Channel 0 supports ASCII and DF1 full-duplex, half-duplex master and half-duplex slave protocols. On the front panel, there is a channel 0 communication green indicator light. Besides channel 0, there is 8-pin mini DIN connector marked as channel 1A. This is a DH+ programming terminal connection parallel to channel 1A. There are two three-pin connectors and they are used as communication ports. One is marked as channel 1A and that port is dedicated to DH+ communication and there is port channel 1B which can be configured as remote I/O scanner, remote I/O adapter or DH+ communication port.

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100% full New - Original Factory Seal

Warranty: 12 months

Package: Original packing with cartons

Delivery time: Shipped in 3 days after payment

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Moore Automation is a company specializing in the sales of modules and spare parts for world-renowned brands (DCs systems, robot systems, large servo control systems). The company's products include: distributed control systems (DCS), programmable controllers (PLC), MOTOROLA -MVME industrial modules, industrial control communication converters (Anybus), remote output/input modules (RTU), industrial computers (PC), industrial low-frequency screens (IPC), human-machine interface SCSI (50, 68, 80Pin ) AnyBus(Gateway)o The spare parts we sell provide one-year quality guarantee and have undergone strict testing and certification. Now we have become a global sales enterprise of industrial automation spare parts and components.