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Hey there Contractors and fellow Service Professionals!
Today we are covering the Allen Bradley 1756-L61 Series B PLC.
This is a ControlLogix Logix5561 Processor with 2 MB user memory. This 1756-L61 controller comes with one RS-232 serial built-in communication port. The connections supported is 250 max.
The 1756-L61 Logix 5561 controller can be inserted into any slot of a chassis and multiple controller can be installed in the same chassis. This will allow the controllers to communicate with each other across the backplane but still operate independently.
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Here is the Specifications table…
| Allen Bradley 1756-L61 Series B | |
|---|---|
| Available User Memory | 2048 KB |
| I/O Memory | 478 KB |
| Optional Nonvolatile Memory | 64 MB CompactFlash, 128 MB |
| Max Digital I/O | 128,000 |
| Max Analog I/O | 4,000 |
| Max Total I/O | 128,000 |
| Current Draw | 1200 mA at 5 VDC 14 mA at 24 VDC |
| Controller Tasks | 32 Tasks 100 Programs / Task |
| Event Tasks | All Event Triggers |
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Allen Bradley 1756-L61 controllers can also communicate across RS-232 Serial C (DF1/DH-485 protocol), DeviceNet, DH+, ControlNet, and EtherNet/IP networks. Also note that an appropriate communication interface module must be installed in the chassis to provide communication for a ControlLogix 1756-L61 controller.
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Stay tuned for the next PLC item on our line up >> Allen Bradley 1756-L62S/B
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