The 1756-L75K controller is a 5570 ControlLogix controller manufactured by Allen-Bradley. Its specifications are 0.98 MB of I/O memory, 32 MB of user memory, 2.5 Watts of power dissipation, 30 Volts of isolation voltage, 800 milliamps of current draw at 5.1 Volts DC, and 5 milliamps of current draw at 1.2 Volts DC. It has a 12-megabits per second USB 2.0 port for communication and no batteries are required on this module because it features a built-in energy storage module. The 1756-L75K controller can address different input/output points and it can be installed alongside multiple controllers in the same chassis.
The Allen-Bradley 1756-L75K ControlLogix controller supports a maximum of 500 connections. In its running state, it is capable of performing tasks on 32 concurrent cached message instructions drawn from all 500 connections supported by the controller. It is compatible with different industrial network protocols and it is capable of monitoring and controlling input/output locally on the ControlLogix backplane or over the network. It is programmable through a human-machine interface module or via the Studio 5000 designer software. Alternatively, the 1756-L75K ControlLogix controller can be programmed locally via the USB communication port which also allows for local configuration and firmware updates. This module has an open type of enclosure with a conformal coating that allows it to be used safely in different environments despite humidity and contamination. Its required slot width is 1 and its wire category is 3 on the USB port. Some communication options available for this unit are the DeviceNet, Data Highway Plus, and EtherNet communication networks. Additionally, the number of outgoing buffers on this controller is adjustable.
FAQ for 1756-L75K
The 1756-L75K ControlLogix 5570 Controller by Allen-Bradley is a controller with conformal coating, a high-performance processor, and the ability to be installed in any slot of the 1756 ControlLogix chassis. It has an input/output (I/O) memory of 0.98MB and a user memory of 32MB and it supports an optional non-volatile memory of either 1GB or 2GB. It can support a maximum of 128,000 Digital input/output (I/O), and a maximum of 4000 analog I/O, with an overall I/O support capacity of 128,000. It has a backplane current of 5mA at 1.2V DC and can draw up to 800mA in backplane current at 5.1V DC. The 1756-L75K is an event-based task controller which comes with internal ControlNet and EtherNet I/P communication options and can support a maximum of 500 connections.
It also comes with a USB 2.0 port with 12Mbps transfer speed used only for programming, configuration, and online edits. It provides a 30V isolation between USB port-to-system, using a basic insulation type, tested for 60s at 500V AC, has a thermal dissipation of 8.5 BTU/hr, with a power dissipation of 2.5W. It has a factory-designated T4A North America and T4 ATEX and IECx temperature codes and is designed with an open-style enclosure. It has a functional temperature range between 0 °C and 60 °C (32 °F and 140 °F) at 5-95% humidity and it must be used in a maximum surrounding temperature of 60 °C (140 °F). It has a tested operational vibration withstand of 2G at 10-500Hz vibration frequency and is built to withstand a shock of 30G while operational. It weighs approximately 0.25kg (0.55lb) and is c-UL-us, CE, and IECx-certified.
Revisions for 1756-L75K
Please refer to the manual for more information about the 1756-L75K such as the wiring diagrams, data sheets,
firmware information and migration or obsolescence details.
|Revision Part #
||Also Known as
||1756-L75K/A, Series A, Rev A