Manufacturer Rockwell Automation
Brand Allen Bradley
Part Number/Catalog Number Model 1756-L63XT
Series ControlLogix
Module Type Processor module
I-O memory 478 kilobytes
The Allen-Bradley 1756-L63XT is a ControlLogix controller that can withstand extreme temperatures. This controller is also known as the Extreme Environment ControlLogix controller because it operates at a higher temperature than most controllers. The 1756-L63XT has an operating temperature range of -25 to 70 degrees Celsius, while the storage temperature is -40 to 85 degrees Celsius. Its maximum ambient air temperature is 70 degrees Celsius. However, even with the 1756-L7XT controller, the ambient air temperature range is somewhat reduced when you use the 1756-A7LXT chassis; The range changes to -25 to 60 degrees Celsius, 10 degrees lower. But when the controller is used with the FLEX I/O-XT product, it can withstand -20 to 70 degrees Celsius, which is 5 degrees lower than when used alone.
The controller has 8 MB of user memory and 478 kb of I/O memory for you to use. You can also use optional non-volatile memory, but only 64 MB (1784-CF64) or 128 MB CompactFlash memory card (1784-CF128). It also has a 1-port RS-132 serial built-in communication port. The ControlLogix chassis compatible with this controller are 1756-A4LXT, 1756-A5XT, 1756-A7LXT, and 1756-A7XT.
The 1756-L63XT has a maximum digital and total I/O of 128,000, respectively, and a maximum analog I/O of 4000. It has three controller tasks, the event task: all event triggers, 32 tasks, and 100 programs per task. It can support up to 250 controller connections, as well as controller redundancy for the same controllers belonging to the same ControlNet network. Communication options for the 1756-L63XT controller include ControlNet, DeviceNet, Remote I/O, SynchLink, EtherNet/IP, Data Highway Plus, and third-party process and device networks. The controller also provides serial port communication, namely DF1 radio modem, DF1 full/half duplex, ASCII, Modbus via logic and ASCII.
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