Product Description
Product Overview
- Manufacturer: Allen-Bradley
- Model/Part Number: 1768-L45
- Description: CompactLogix L45 3MB Memory Controller
- Tariff Code: 8537109060
Key Specifications
Memory & Power
- Available User Memory: 3 MB
- Power Consumption: 48 W
- Power Dissipation: 8.3 W
- 1768 Current Draw: 5.6 A @ 5V DC
- 1769 Current Draw: 2.0 A @ 5V DC
- Total Current Draw (1768 & 1769): 7.6 A @ 5V DC
- Backplane Current Draw: 2.0 A @ 24V DC
Module and Expansion
- Number of 1768 Modules (Max): 4
- Number of 1768 Motion Modules (Max): 4
- Number of 1769 I/O Modules (Max): 30
- Number of I/O Banks (Max): 3
-
Module Expansion Capacity:
- Two 1768 modules
- Sixteen 1769 modules
Communication
- Communication Ports: RS-232 (Fully Isolated, 38.4 Kbps max)
- Number of 1768 Communication Modules (Max): 2
- Communication Protocol: Other
- Communication Bus: RS-232
- Serial Cable: 1756-CP3 or 1747-CP3 (right angle connector to controller, straight to serial port, 3 m)
- Power Supply: 1768-PA3, 1768-PB3
Environmental Specifications
- Operating Temperature: 0°C to 60°C (32°F to 140°F)
- Storage Temperature: -40°C to +85°C (-40°F to +185°F)
- Vibration (Operating): 5 G @ 10 to 500 Hz
- Shock (Operating): 30 G
- Relative Humidity: 5-95% non-condensing
- Surrounding Air Temperature (Max): 60°C (140°F)
Immunity & Protection
- Emissions: CISPR 11 (IEC 61000-6-4)
- ESD Immunity: 6 kV contact discharges, 8 kV air discharges
- EFT/B Immunity: ±4 kV @ 5 kHz on communication ports
- Surge Transient Immunity: ±2 kV line-earth (CM) on communication ports
- Conducted RF Immunity: 10V rms with 1 kHz sine-wave 80% AM from 150 kHz to 80 MHz
- Radiated RF Immunity: 10 V/m with 1 kHz sine-wave 80% AM from 80 to 2000 MHz, 10 V/m with 200 Hz 50% Pulse 100% AM @ 900 MHz, 3 V/m with 1 kHz sine-wave 80% AM from 2000 to 2700 MHz
- Explosion-Proof: No
- North American Temperature Code: T4
Mounting and Physical
- Module Location: DIN rail or panel mount
- DIN-Rail Mounting: Yes
- Panel-Mounting Screw Torque: 1.16 Nm (10 in-lb) - Use M4 or #8 screws
- Dimensions (HxWxD): 131.1 mm x 56.4 mm x 121.1 mm (5.18 in x 2.22 in x 4.81 in)
- Weight: 0.34 kg (11.99 oz)
- With Display: No
- With PC Connection: Yes
- Suitable for Front Mounting: Yes
- Enclosure Type Rating: None (open-style)
Programming & Control
-
Programming Languages:
- Relay Ladder
- Structured Text
- Function Block
- Sequential Function Chart (SFC)
- Failsafe Model: No
- Protection for Local Controls: No
- Expandable: Yes
- Standard Applications Available: Yes