The 1769-L32C is a CompactLogix controller that is made by Allen-Bradley/Rockwell Automation. This controller is important because each ControlNet network requires at least one module like it that is able to store parameters and network configuration data after the start-up process. The 1769-L32C can store data and at the same time work as a back-up. All of these actions are automatic. The Allen-Bradley 1769-L32C CompactLogix controller comes with different communication ports which are the RS-232, NAP, and the ControlNet ports on channel 4. It also uses a memory of 750 Kilobytes and it has 16 I/O modules. The Allen-Bradley 1769-L32C CompactLogix controller has 3 I/O banks and it has a backplane current of 650 milliamps at 5 Volts DC and 40 milliamps at 24 Volts DC. The power dissipation of the 1769-L32C logic module is 4.21 Watts. The battery of the Allen-Bradley 1769-L32C CompactLogix controller can be replaced only by the Allen-Bradley 1769-BA battery.

The Allen-Bradley 1769-L32C CompactLogix controller operates with an operating temperature range of 0 to 60 degrees Celsius and a relative humidity of 5 to 95%. It is important to maintain the right temperature in order to preserve the life of the module. Modules like this one can be easily corroded and damaged. The Allen-Bradley 1769-L32C CompactLogix controller provides status indicators that show the current status of the module. These indicators can be steady, alternating, or flashing when they light up. The 3 of these types of lights have different meanings and are a good way to understand and address different problems the controller may have. Conditions such as a loss of power, a misplaced module on the rack, or major and minor faults can be shown through these status indicators. The Allen-Bradley 1769-L32C CompactLogix controller has an approximate weight of 0.32 kilograms. The 1769-L32C logic module supports 100 connections and can save and restore user applications in the CompactFlash memory.