Technical specifications for 1756-L72
Manufacturer Rockwell Automation
Brand Alan Bradley
Part / Cat.No. 1756-L72
Module Type Processor Module
IO memory 0.98 MB
User memory 4 megabytes
1756-L72 Rockwell PLC Module Supply
Maximum IO 128,000
Maximum analog IO 4,000
Maximum digital IO 128,000
Current consumption (1.2 volts DC) 5 mA
Current consumption (5.1 V) 800 mA
Heat dissipation 8.5 BTU per hour
Isolation voltage: continuous 30 volts
Operation shock 30G
Allen-Bradley 1756-L72 is a ControlLogix Series A programmable automation controller. It has 4 MB of user memory for data and logic and 0.98 MB of I / O memory. The controller comes with a 1 GB SD card 1784-SD1, which you can use as an optional non-volatile memory storage. If the storage space is not enough, you can also upgrade it to 2 GB with a 1784-SD2 card. It is recommended to install SD cards on the controller and use only SD cards sold by Rockwell Automation, as these cards have been thoroughly tested and can be used with the controller. Using other SD cards may cause risk of data loss or damage. The SD card is mainly used to store diagnostic data automatically written when a fault occurs. Rockwell Automation uses this data for troubleshooting. The 1756-L72 controller also has three capacitor energy storage modules. The 1756-ESMCAP / 1756-ESMCAPK is a removable module available in each controller. Another removable module is the 1756-ESMNSE / 1756-ESMNSEK, with no WallClockTime power supply remaining. The non-removable module is 1756-ESMNRM / 1756-ESMNRMK, which helps prevent USB connections, and the use of an SD card helps protect the controller.
You can use 1756-L72 controllers with specific modules to create Armor ControlLogix controllers. It can support controller redundancy when paired with similar controllers and in the same ControlNet network. ControlLogix chassis compatible with this controller are 1756-A4, 1756-A4K, 1756-A7, 1756-A7K, 1756-A10, 1756-A10K, 1756-A13, 1756-A13K, 1756-A17, and 1756-A17K. It also has a full-speed USB 2.0 port and a 4-character alphanumeric display for you to see its current status. The 1756-L72 controller offers several communication options, including Data Highway Plus, DeviceNet, Ethernet / IP, Remote I / O, SynchLink, ControlNet, and third-party process and device networks. USB port connection is limited to configuration, online editing, programming and firmware update. The controller has a continuous isolation voltage of 30 volts and has been type tested for 60 seconds at 500 volts AC. At 1.2 volts DC, the current consumption is 5 mA; at 5.1 volts DC, the current consumption is 800 mA. The 1756-L72 controller consumes 2.5 watts of power and dissipates 8.5 BTU / hour. The controller's storage temperature range is -40 to 85 degrees Celsius, while its operating temperature range is 0 to 60 degrees Celsius. It has a vibration of 2 G at 10 to 500 Hz, an operating shock of 30 G, and a non-operation shock of 50 G. The controller's storage temperature range is -40 to 85 degrees Celsius, while its operating temperature range is 0 to 60 degrees Celsius. It has a vibration of 2 G at 10 to 500 Hz, an operating shock of 30 G, and a non-operation shock of 50 G. The controller's storage temperature range is -40 to 85 degrees Celsius, while its operating temperature range is 0 to 60 degrees Celsius. It has a vibration of 2 G at 10 to 500 Hz, an operating shock of 30 G, and a non-operation shock of 50 G.
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