A-B 1756-L61 is a PLC(Programmable Logic Controller)controller of the ControlLogix series,designed by Allen-Bradley/Rockwell Automation.The following is a detailed introduction to the A-B 1756-L61 controller:
I.Basic features
Model:1756-L61
Type:ControlLogix controller
Memory:2MB user memory and 478KB I/O memory,optional 128MB non-volatile storage memory(using 1784-CF128 CompactFlash memory card)
Compatibility:Chassis-based controller that can be placed in any available slot of the 1756 ControlLogix chassis,compatible chassis models include 1756-A4,1756-A7,1756-A10,1756-A13 and 1756-A17
II.Communication and interface
Communication options:Supports multiple communication protocols and networks,such as ControlNet,Data Highway Plus,EtherNet/IP,DeviceNet,SynchLink,remote I/O,and third-party process and device networks
Serial communication port:Built-in RS-232 serial communication port,supported protocols include DF1 full/half duplex,ASCII,DF1 radio modem,Modbus via logic,and DH-485
A-B 1756-L61
III.Performance parameters
Digital I/O:Maximum digital I/O is 128,000
Analog I/O:Maximum analog I/O is 4,000
Total I/O:Maximum total I/O is 128,000
Controller tasks:Can handle up to 32 tasks,each task can handle up to 100 programs
Controller connections:Supports up to 250 controller connections
Current consumption:1200mA at 5.1V DC,14mA at 24V DC
Power consumption:3.5W
Heat dissipation:11.9 BTU/hr
Isolation voltage:30V continuous isolation voltage,has been at 720V Tested for 60 seconds at DC
Operating temperature:0 to 60 degrees Celsius
Storage temperature:-40 to 85 degrees Celsius
Relative humidity:5%to 95%(non-condensing)
Vibration:2g at 10 to 500 Hz
Shock:30g for operating shock and 50g for non-operating shock
A-B 1756-L61
IV.Applications
The A-B 1756-L61 controller is suitable for a variety of industrial automation and control applications,including manufacturing,process control,energy management and other fields.Its high performance and modular design make it an ideal choice for medium-scale process control.
V.Other features
Supports backup batteries,which can be replaced when the battery is worn to save user programs and data.
Supports the implementation of independent and distributed I/O applications.
Supports redundancy to improve system availability,which is often required in critical systems.
Integrated motion control is achieved through embedded SERCOS interface,analog input options such as encoder input,LDT input and SSI input.
Supported programming languagesinclude relay ladder diagram,structured text,function block diagram(FBD)and sequential function chart(SFC).
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