Product Description
Product Overview
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Manufacturer: Allen-Bradley
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Model/Part Number: 1768-L43S
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Description: CompactLogix Controllers
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Tariff Code: 8537109060
Key Specifications
Technical Specifications
| Attribute |
1768-L43 |
1768-L43S |
1768-L45 |
1768-L45S |
| User Memory |
2 MB |
2 MB (standard) + 0.5 MB (safety) |
3 MB (standard) + 1 MB (safety) |
3 MB (standard) + 1 MB (safety) |
| Optional Nonvolatile Memory |
1784-CF128 |
1784-CF128 |
1784-CF128 |
1784-CF128 |
| Number of 1768 Modules Max |
2 |
4 |
2 |
4 |
| Number of 1768 Communication Modules Max |
2 |
2 |
2 |
2 |
| Number of 1768 Motion Modules Max |
2 |
4 |
2 |
4 |
| Number of 1769 I/O Modules Max |
16 |
30 |
16 |
30 |
| Number of I/O Banks Max |
2 |
3 |
2 |
3 |
| Backplane Current Draw (24V DC) |
1.3 A |
1.4 A |
2.0 A |
2.1 A |
| 1768 Current Draw (5V DC) |
2.8 A |
5.6 A |
N/A |
N/A |
| 1769 Current Draw (5V DC) |
2.0 A |
2.0 A |
N/A |
N/A |
| Total 1768 & 1769 Current Draw (5V DC) |
4.8 A |
7.6 A |
N/A |
N/A |
| Power Dissipation |
6.3 W |
7.5 W |
8.3 W |
9.5 W |
| Power Consumption |
31.3 W |
33.6 W |
48.0 W |
50.4 W |
| Isolation Voltage |
30V (continuous), functional insulation type |
30V (continuous), functional insulation type |
30V (continuous), functional insulation type |
30V (continuous), functional insulation type |
Communication and Ports
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Communication Ports: RS-232, Fully isolated, up to 38.4 Kbps max
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Serial Cables: 1756-CP3 or 1747-CP3, right angle connector to controller, straight to serial port, 3 m
Environmental Specifications
| Attribute |
Value |
| Operating Temperature |
0 to 60°C (32 to 140°F) |
| Storage Temperature |
-40 to +85°C (-40 to +185°F) |
| Surrounding Air Max Temperature |
60°C (140°F) |
| Relative Humidity |
5-95% noncondensing |
| Vibration (Operating) |
5 g @ 10 to 500 Hz |
| Shock (Operating) |
30 g |
| Shock (Nonoperating) |
50 g |
| ESD Immunity |
IEC 61000-4-2 (6 kV contact, 8 kV air) |
| Radiated RF Immunity |
IEC 61000-4-3 (10V/m, 80…2000 MHz) |
| EFT/B Immunity |
IEC 61000-4-4 (±4 kV) on communication ports |
| Surge Transient Immunity |
IEC 61000-4-5 (±2 kV line-earth) |
| Conducted RF Immunity |
IEC 61000-4-6 (10V rms, 150 kHz to 80 MHz) |
Physical Specifications
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Dimensions (HxWxD): 131.1 mm x 56.4 mm x 121.1 mm (5.18 in x 2.22 in x 4.81 in)
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Weight: 0.34 kg (11.99 oz)
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Mounting: DIN rail or panel mount
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Panel-Mount Screw Torque: 1.16 N·m (10 lb·in), use M4 or #8 screws
Additional Features
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DIN Rail or Panel Mount: Versatile mounting options for integration into industrial control systems.
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High Durability: Rated for wide temperature ranges and high shock/vibration resistance, ensuring reliability in industrial environments.
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Compact Design: Small form factor makes it easy to integrate in space-constrained installations.
The 1768-L43S is a robust and flexible industrial controller designed for demanding automation tasks. With its enhanced memory capacity, environmental durability, and modularity, it is ideal for medium-scale control systems and industrial applications.
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