| Manufacturer | Rockwell Automation |
| Part Number/Catalog No. | 1756-L71S |
| Brand | Allen-Bradley |
| Product Type | Programmable Automation Controller |
| Safety Memory | 1 MB |
| Non-volatile memory | 1GB (ships with the controller) |
| Maximum I/O | 128000 |
| Maximum Analog I/O | 4000 |
| No. of standard task | 31 |
| No. of safety task | 1 |
| Programs per task | 100 programs |
| Event Tasks | All triggers |
| uilt-in communication | 1 USB port |
| Optional Communication adapters | • EtherNet/IP • ControlNet • DeviceNet |
| Redundancy | Not supported |
| I-O Memory | 0.98 MB |
| Current Draw (1.2 Volts DC) | 5 Miliamperes |
| Current Draw (5.1 Volts DC) | 800 Miliamperes |
| Power Dissipation | 2.5 Watts |
| Thermal Dissipation | 8.5 BTU per hour |
| Isolation Voltage | 30 Volts Continuous |
| Enclosure | None (Open-Style) |
| UPC | 10885630016464 |