The Allen-Bradley 1785-V40V is a high-performance PLC-5 processor card designed for VMEbus systems. Featuring 48K words of SRAM and supporting up to 1920 I/O points, this module integrates programmable logic control directly into standard 6U VMEbus chassis for advanced industrial computing.
The Allen-Bradley 1785-V40V belongs to the specialized family of enhanced PLC-5 processors designed specifically for VMEbus (Versa Module Europa) architectures. While it maintains the powerful logic capabilities of the standard PLC-5 platform, this processor utilizes the ANSI/IEEE 1014-1987 standardized communication backplane instead of a traditional 1771 I/O chassis. This integration allows industrial computer systems to leverage robust programmable logic functions directly within a high-speed VMEbus environment.
Versatility defines the operational profile of the 1785-V40V. The module effectively manages complex automation tasks by acting as either a bus master or a slave. In master mode, the processor actively retrieves data from auxiliary VMEbus modules, whereas in slave mode, it facilitates data accessibility for other network-connected devices. This bi-directional communication ensures that the 1785-V40V integrates perfectly into multi-processor or hybrid control systems.
Engineers can optimize system density by installing the 1785-V40V into a standard 6U VMEbus chassis. The hardware occupies only two slots, yet a single chassis can accommodate up to eight individual 1785-V40V units for high-demand processing applications. With 48K words of SRAM and extensive I/O support, this processor delivers a bridge between high-level computing and reliable, industrial-grade process control.
The Allen-Bradley 1785-V40L is a vintage, high-performance PLC-5 processor card designed for seamless slot integration directly into a VMEbus backplane architecture. Featuring 48,000 words of internal user memory and support for 64 KB VME transfer speeds, this versatile controller bridge contains 4 built-in Data Highway Plus (DH+) communication ports alongside an independent Remote I/O (RIO) scanner capable of driving up to 15 external racks. Built with discrete serial port channels (RS-232/422/423) and compliant with strict CE safety certifications, it provides a rugged, highly secure solution for maintaining legacy industrial systems, embedded test setups, and cross-platform automation architectures.
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