Part Number: 1756-L81E

Weight: 0.94 lbs (0.43 kg)

Isolation Voltage: 50 Volts Continuous

Power Dissipation: 6.2 Watts

Current Draw (5.1 Volts): 1.20 mA

Current Draw (1.2 Volts DC): 5.0 mA

User Memory: 3 MB

Maximum I-O: 128,000

Maximum Analog I-O: 4,000

Maximum Digital I-O: 128,000

Thermal Dissipation: 21.2 BTU per hour

The 1756-L81E is a controller from the product family, the latest and modern designed series. It is a Programmable Controller (PAC) that comes with modern connectivity and modern features allowing it to be used as migration platform for legacy controllers such as PLC5 and SLC500 controllers and solutions for demanding industrial application requirements.

The 1756-L81E lies in the low-end of the 1756-L8 series controllers as it only comes with a 3MB user memory and shipped with a 2GB non-volatile memory via the 1784-SD2 Secure Digital (SD) card. This controller is capable of handling a maximum number of 128,000 Discrete Input and Output signals and 4000 Analog Input and Output signals. It also eliminates the need of a battery to back-up the RAM of the controller as it is provided with the environmentally friendly energy storage solution.

Frequently asked questions：

Q1: What is the 1756-L81E used for?

A: It is used as a high-performance controller for large-scale industrial and process control systems.

Q2: How much user memory does the 1756-L81E have?

A: The controller has 3 MB of user memory for program storage.

Q3: How many I/O points can it handle?

A: It supports up to 128,000 I/O points, making it suitable for complex applications.

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