1771-UC1

The 1771-UC1 microcontroller that is from the Allen-Bradley 1771 product line is made to provide an assembly language programming device with multiple capabilities such as versatility and speed capabilities. It also comes with diverse hardware such as RAM and EPROM units and it can operate with any I/O module, whether it is a single module or discrete module. This microcontroller is located on the left slot of any 1771 I/O module. The EPROM unit type of this controller is a Plug-in UV EPROM known as the 1770-XP EPROM and it has a memory capacity of up to 14K. Although the Allen-Bradley 1771-UC1 microcontroller is managed with a user-developed assembly language named Z-80A, it requires additional support to develop new functions and to fully support any specific application. The programmers need to have complete knowledge of the Z-80A language program and they need to have access to Zilog or Mostek international information, in addition to knowledge of Allen-Bradley products and relevant technical installation knowledge.

The Allen-Bradley 1771-UC1 microcontroller is powered up by a specific power supply and among its most important parts are an RS-232-C port and an 8-slot I/O rack. Another important physical part of the microcontroller is a three-position key switch, and the 3 switch positions are the Run, Fault Reset, and the System Reset positions. It also comes with 3 diagnostic indicators that show the status of the processor, memory, and diagnostics. The programming temperature must not exceed 20 or 30 degrees Celsius depending on the environmental conditions. The Allen-Bradley 1771-UC1 microcontroller can be mounted directly to the side of the 1771 I/O rack or located up to 5 feet away from the rack assembly and operated remotely. The power cables and all other cables need to be ordered separately.