Product Description
Allen-Bradley 1756-L7SP ControlLogix Processor Module (GuardLogix)
Product Overview
The Allen-Bradley 1756-L7SP is part of the GuardLogix 5570 family, designed specifically for applications that require safety control. It provides reliable processing for safety-related I/O and ensures high system performance with a focus on secure communication and environmental robustness.
Key Features
| Attribute |
Details |
| Model |
1756-L7SP |
| Manufacturer |
Allen-Bradley |
| Description |
ControlLogix Processor Module for safety control applications |
| User Memory |
8 MB |
| Safety Memory |
4 MB |
| I/O Memory |
0.98 MB |
| Digital I/O (max) |
128,000 |
| Analog I/O (max) |
4,000 |
| Total I/O (max) |
128,000 |
| Non-Volatile Memory |
1 GB (1756-SD1 ships with every controller) |
| Energy Storage Modules |
Removable 1756-ESMCAP, non-removable 1756-ESMNRM, others for safety |
| Current Draw |
5 mA @ 1.2V DC, 800 mA @ 5.1V DC |
| Power Dissipation |
2.5 W |
| Thermal Dissipation |
8.5 BTU/hr |
| Weight |
Approx. 0.25 kg (0.55 lb) |
| Slot Width |
2 (requires both modules; each takes one slot) |
| Module Location |
Chassis-based (safety partner must be to the right of primary controller) |
| Power Supply Compatibility |
Standard and Redundant options: 1756-PA50, 1756-PA72, 1756-PB50, 1756-PB72, 1756-PA75R, 1756-PBXTR |
Environmental and Performance Specifications
| Attribute |
Details |
| Operating Temperature |
0°C to +60°C (+32°F to +140°F) |
| Non-operating Temperature |
-40°C to +85°C (-40°F to +185°F) |
| Relative Humidity |
5-95% non-condensing |
| Vibration Resistance |
2 g at 10-500 Hz |
| Shock Resistance |
30 g (operating), 50 g (non-operating) |
| Corrosive Atmosphere Rating |
Yes, Severity Level G3 per ANSI/ISA 71.04-2013, and Severity Level CX per IEC 60721-3-3:2019 |
| Conformal Coating |
No |
| Temperature Code |
T4 |
| Emissions Compliance |
IEC 61000-6-4 (Industrial Emissions) |
| ESD Immunity |
IEC 61000-4-2, 6 kV contact, 8 kV air discharges |
| Radiated RF Immunity |
IEC 61000-4-3, 10V/m with 1 kHz sine wave from 80…2000 MHz |
| Conducted RF Immunity |
Not applicable to USB (temporary port) |
Certifications
| Certification |
Details |
| UL Listed |
Industrial Control Equipment for US & Canada (File E65584) |
| CE Compliance |
EU EMC and industrial immunity requirements |
| ATEX Certified |
Ex ec IIC T4 Gc, for potentially explosive atmospheres (Zone 2) |
| IECEx |
Ex ec IIC T4 Gc, for hazardous locations |
| RCM, KC, UKEx |
Compliant with Australian, Korean, and UK regulations |
Power Supply Compatibility
| Power Supply Type |
Model |
| Standard Power Supply |
1756-PA50, 1756-PA72, 1756-PB50, 1756-PB72, 1756-PA75, 1756-PB75 |
| Redundant Power Supply |
1756-PA75R, 1756-PBXTR, 1756-PSCA2 |
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