The Allen Bradley 1756-L73XT is a ControlLogix-XT controller. This controller functions similarly to other ControlLogix controllers and it consists of a control and communication system and it is coated for protection from harsh and corrosive environments.
When used with FLEX I/O-XT, the 1756-L73XT can withstand a temperature between -20 and 70°C. The controller has 8 MB of user memory and 0.98 MB of I/O memory. The 1756-L73XT’s battery is not replaceable. The controller requires 800 mA of current draw at 5.1V AC and 5 mA of current draw at 1.2V AC. The controller’s power dissipation is 2.5 W and its thermal dissipation is 8.5 BTU/hr. The 1756-L73XT has 30 V of continuous Isolation voltage with basin insulation from USB port-to-Backplane and it is tested to withstand up to 500V AC for 60 seconds. The controller’s USB can reach 12 Mbps at full speed. The device weighs approximately 0.25 kg with 1 slot width. Its module location is chassis-based at any slot. For low-temperature applications, only use the 1756-A4K, 1756-A7K, 1756-A10K, 1756-A13K, or the 1756-A17K chassis. For general use, it is advisable to use1756-A7XT, 1756-A10XT. The 1756-L73XT has no power supply redundancy but it does have standard power supplies. These include the 1756-PAXT, 1756-PA30XT, 1756-PBXT, and the 1756-PB30XT with a wire category of 3 – on USB ports.
The 1756-L73XT has a non-operating temperature of -40 – 85 °C and a maximum surrounding air temperature of 70 °C at a relative humidity between 5 and 95%. Its operating vibration is 10 – 500 Hz, its operating shock is 30 g, and its non-operating shock is 50 g.
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| Manufacturer | Rockwell Automation |
| Brand | Allen Bradley |
| Part Number/Catalog No. | 1756-L73XT |
| Series | ControlLogix |
| Module Type | Processor Module |
| I-O Memory | 0.98 MB |
| User Memory | 8 MB |
| Maximum I-O | 128,000 |
| Maximum Analog I-O | 4,000 |
| Maximum Digital I-O | 128,000 |
| Current Draw (1.2 Volts DC) | 5 milliamps |
| Current Draw (5.1 Volts) | 800 milliamps |
| Power Dissipation | 2.5 Watts |
| Thermal Dissipation | 8.5 BTU per hour |
| Isolation Voltage | 30 Volts Continuous |
| Enclosure | None |