1775-L2

The Allen Bradley 1775-L2 serves as a main processor module for the PLC 3 series. It plays a vital role in executing programs and managing memory within the PLC-3 architecture. Operating on a power supply voltage range of 5 to 15 Volts DC, this module is designed for robust performance in various applications.

Local indication is facilitated by red and green LED lights located on the front, providing clear status feedback. For power, this module consumes 9 Amperes at 5 Volts DC and 40 milliamperes at 15 Volts DC. Its design accommodates multiple mounting configurations, either in a rack or directly on a chassis.

This processor must be positioned in the two left-most slots of the processor chassis for optimal system integration. The computing power is delivered by four AMD 2903 bit slice microprocessors, which collectively contribute to executing the Level 2 instruction set.

Current intake on the backplane involves 5 Amperes from the 5 Volts DC circuit, alongside 80 milliamperes drawn from the -15 Volts DC circuit, ensuring sufficient operational capability. The 1775-L2 has a working temperature range of 0 to 60°C (32 to 140°F) and can withstand storage temperatures ranging from -40 to 85°C (-40 to 185°F), making it capable of enduring a variety of environmental conditions.