1768-L45S
Allen-Bradley Compact GuardLogix L45S Safety Controller, 3 MB/1 MB
Read from the product label
- Maker
- Allen-Bradley
- Part no.
- 1768-L45S
- Serial / rev.
- as printed on your unit
Image is for illustrative purposes only. Please refer to product description.
Delivery options
Allen-Bradley 1768-L45S is a 1768 Compact GuardLogix safety controller with 3 MB of memory and 1 MB of safety memory, taking up to four 1768 modules and 30 1769 I/O modules.
- Manufacturer
- Allen-Bradley
- Manufacturer part no.
- 1768-L45S
- Type
- Compact GuardLogix safety controller
- Lifecycle
- Discontinued
- OEM successor
- Not stated
- Technical datasheet
- Data sheet
Technical specifications
- Manufacturer
- Allen-Bradley
- Manufacturer part no.
- 1768-L45S
- Type
- Compact GuardLogix safety controller
- Application
- PLC controller
- Used with
- 1768 and 1769 Compact I/O
- Embedded Network Port
- None
- L4x platform - controllers
- CompactLogix L45 Safety
- Local Programming Port
- 1 RS232
- Memory
- 3 MB
- Non Volatile Memory Option
- CompactFlash
- Safety Memory
- 1 MB
- 1768 current draw
- 5.6A @ 5V DC
- 1769 current draw
- 2.0A @ 5V DC
- Available user memory
- 3 MB standard, 1 MB safety
- Backplane current draw
- 2.1A @ 24V DC
- Communication bus
- RS-232
- Communication medium copper
- Yes
- Communication ports
- RS-232, Fully isolated, 38.4 Kbps max
- Communications protocol
- Other
- Conducted RF immunity
- 10V rms with 1 kHz sine-wave 80% AM from 150 kHz...80 MHz
- Depth
- 122.1 mm
- DIN-rail mounting
- Yes
- EFT/B immunity
- ±4kV @ 5kHz on communication ports
- Emissions
- CISPR 11 (IEC 61000-6-4)
- Enclosure type rating
- None (open-style)
- ESD immunity
- 6 kV contact discharges, 8 kV air discharges
- Expandable
- Yes
- Height
- 131.6 mm
- Isolation voltage
- 30V (continuous), functional insulation type, Type tested at 500V AC @ 60s, RS-232 to system
- Module expansion capacity
- Two 1768 modules, Sixteen 1769 modules
Show all 60 specificationsShow fewer
- Module location
- DIN rail or panel mount
- Number of 1768 communication modules, max
- 2
- 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
- Operating temperature
- 0 °C
- Panel-mounting screw torque
- 1.16 Nm (10 in-lb) - use M4 or #8 screws
- Power consumption
- 50.4 W
- Power dissipation
- 9.5 W
- Power supply
- 1768-PA3, 1768-PB3
- Power supply distance rating
- 4 modules
- Programming languages
- Standard task: all languages, Safety task: relay ladder, safety application instructions
- Radiated RF immunity
- 10 V/m with 1 kHz sine-wave 80% AM from 80...2000 MHz, 10 V/m with 200 Hz 50% Pulse 100% AM @ 900 MHz, 10 V/m with 200 Hz 50% Pulse 100% AM @ 1890 MHz, 3 V/m with 1 kHz sine-wave 80% AM from 2000...2700 MHz
- Relative humidity
- 5...95% noncondensing
- Serial cable
- 1756-CP3 or 1747-CP3, right angle connector to controller, straight to serial port, 3 m
- Shock
- Operating: 30 G
- Slot width
- 1.5
- Standard applications available
- Yes
- Storage temperature
- -40 °C
- Suitable for front mounting
- Yes
- Surge transient immunity
- ±2 kV line-earth (CM) on communication ports
- Surrounding air temperature, max
- 60 °C
- Total 1768 and 1769 current draw
- 7.6A @ 5V DC
- Vibration
- 5 G @ 10...500 Hz
- Voltage type
- DC
- Weight, approx
- 0.45 kg
- Width
- 89.6 mm
- Wire category
- 2 - on communication ports
- With PC connection
- Yes
Technical documents (1)
Key features
- Isolated RS-232 port, 38.4 Kbps max
- Up to 30 1769 I/O modules
- Up to four 1768 modules
- DIN rail or panel mounting
- Nonvolatile memory option: CompactFlash
About the Allen-Bradley 1768-L45S
The Allen-Bradley 1768-L45S is a Compact GuardLogix safety controller on the 1768 CompactLogix platform. Rockwell's product page gives it 3 MB of memory and 1 MB of safety memory, an RS-232 port and room for up to four 1768 modules and 30 1769 I/O modules. Rockwell Automation lists it as discontinued.
What is the 1768-L45S used for?
The 1768-L45S runs the control program on a machine or line, with 1768 modules beside it and 1769 Compact I/O in up to three banks. It runs standard and safety control in one controller.
Lifecycle and successor
Discontinued.
Before you order
What to photograph or confirm so the right unit is quoted.
Check the catalog number 1768-L45S on the controller's label, with the series letter and firmware revision. Send us a photo of the label and we will confirm the details before quoting.
Alternatives for 1768-L45S
The manufacturer’s named successor and other parts in the same family. None is a drop-in replacement without checking wiring, I/O and configuration for your installation.
| Product | Manufacturer | Type | Lifecycle | Relationship | Qty Available | Price | Action |
|---|---|---|---|---|---|---|---|
| Allen-Bradley 1768-L43CompactLogix L43 Controller, 2 MB Memory | Allen-Bradley | CompactLogix controller | Discontinued | Same family | On Request | On request | View › |
| Allen-Bradley 1768-L43SCompact GuardLogix L43S Safety Controller, 2 MB/0.5 MB | Allen-Bradley | Compact GuardLogix safety controller | Discontinued | Same family | On Request | On request | View › |
| Allen-Bradley 1768-L45CompactLogix L45 Controller, 3 MB Memory | Allen-Bradley | CompactLogix controller | Discontinued | Same family | On Request | On request | View › |
| Allen-Bradley 1769-L30ERMCompactLogix 1 MB Motion Controller | Allen-Bradley | CompactLogix controller | Active | Same family | On Request | On request | View › |
| Allen-Bradley 1769-L30ERMSCompact GuardLogix 5370 Safety Controller, 1 MB/0.5 MB | Allen-Bradley | Compact GuardLogix safety controller | Phased out | Same family | On Request | On request | View › |
| Allen-Bradley 1769-L33ERMCompactLogix 2 MB Motion Controller | Allen-Bradley | CompactLogix controller | Active | Same family | On Request | On request | View › |
| Allen-Bradley 1769-L33ERMSCompact GuardLogix 5370 Safety Controller, 2 MB/1 MB | Allen-Bradley | Compact GuardLogix safety controller | Phased out | Same family | On Request | On request | View › |
| Allen-Bradley 1769-L33ERMSKCompact GuardLogix 5370 Safety Controller, 2 MB/1 MB | Allen-Bradley | Compact GuardLogix safety controller | Phased out | Same family | On Request | On request | View › |
| Allen-Bradley 1769-L36ERMCompactLogix 3 MB Motion Controller | Allen-Bradley | CompactLogix controller | Active | Same family | On Request | On request | View › |
| Allen-Bradley 1769-L36ERMSCompact GuardLogix 5370 Safety Controller, 3 MB/1.5 MB | Allen-Bradley | Compact GuardLogix safety controller | Phased out | Same family | On Request | On request | View › |
| Allen-Bradley 1769-L37ERMSCompact GuardLogix 5370 Safety Controller, 4 MB/1.5 MB | Allen-Bradley | Compact GuardLogix safety controller | Phased out | Same family | On Request | On request | View › |
| Allen-Bradley 1769-L37ERMSKCompact GuardLogix 5370 Safety Controller, 4 MB/1.5 MB | Allen-Bradley | Compact GuardLogix safety controller | Phased out | Same family | On Request | On request | View › |
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