Allen-Bradley 1756-L61 ControlLogix Processor

The Allen-Bradley 1756-L61 ControlLogix Processor (Logix5561) delivers 2 MB of user memory and 478 KB of I/O memory for large, data-intensive automation tasks. Firmware revision F, Rev. 1.10 is installed on this unit. It supports up to 128,000 I/O points, with up to 4,000 analog inputs and 2,000 analog outputs, and achieves a program scan time of about 0.08 ms, while offering RS-232 serial communication and nonvolatile storage via a CompactFlash card (1784-CF128). Weighing about 0.71 lb (0.32 kg), it draws 1.2 A at 5 V and 14 mA at 24 V on the backplane, tolerates 5–95% humidity and 10–500 Hz vibration, and supports Series A (1756-BA1 or 1756-BATM) or Series B (1756-BA2) battery options with a continuous isolation rating around 30 V.