Product Overview
The Allen-Bradley 1768-L43 is a CompactLogix processor module. It controls machines and processes in medium-sized industrial applications. It delivers Logix automation in a compact, cost-effective form. The controller supports motion applications and works with safety controllers. It has 2 MB integrated memory and one fully isolated RS-232 port. A front key switch lets you change operating mode manually. Status indicators include PWR, RUN, FORCE, I/O, OK, CF, DCH0 and CH0. It supports Ladder, Statement List and Function Block languages. Tag-based and alias addressing are supported. The 1768-L43 suits panel or DIN rail mounting.
Technical Specifications
| Brand | Allen-Bradley |
| Model | 1768-L43 |
| Series | CompactLogix |
| Module Type | Processor Module / Controller |
| Manufacturer | Rockwell Automation |
| Integrated Memory | 2 MB |
| Communication | One RS-232 port, max 38.4 Kbps |
| I/O Modules | Up to 16 1769 Compact I/O modules |
| Backplane Modules | Up to 2 1768 modules |
| I/O Banks | Up to 2 remote I/O banks |
| Backplane Current | 1.3 A at 24 V; 2.0 A at 5.2 V |
| Power Consumption | 31.1 W maximum |
| Power Dissipation | 6.3 W |
| Isolation Voltage | 30 V, tested at 500 V AC |
| Operating Temperature | 0 to +60 °C (+32 to +140 °F) |
| Storage Temperature | -40 to +85 °C (-40 to +185 °F) |
| Humidity | 5 to 95% non-condensing |
| Vibration | 10 to 500 Hz, 5 G, 0.030 in peak-to-peak |
| Temperature Code | T4 (135 °C) |
| Enclosure | Open style compatible |
| Programming Cable | 1747-CP3 or 1756-CP3 |
| Optional Memory | 1784-CF128 CompactFlash |
| Power Supply Distance Rating | 4 |
| UPC | 10612598307538 |
| Weight | 11.9 oz (approx. 2 lb shipping) |
| Shipping Dimensions | 5.18 x 2.65 x 4.80 in |
Measurement-related limits: no analog measuring range applies to this controller. Frequency response is defined by the vibration rating: 10 to 500 Hz at 5 G. Sensitivity and linearity are not specified for this processor module. Resolution depends on the installed 1769 I/O modules. Temperature range is 0 to +60 °C operating. Environmental tolerance covers 5 to 95% RH and 5 G vibration. Interference resistance relies on the isolated RS-232 port and the 30 V isolation rating.
Installation Guide
- Mount on a DIN rail or panel with M4 or #8 screws.
- Keep top and bottom clearance of 105 mm (4.13 in).
- Keep side clearance of 90 mm (3.54 in).
- Install with a power supply, end cap, serial cable and mounting hardware.
- Use 1747-CP3 or 1756-CP3 cable for PC connection.
- The cable has a right-angle controller connector and a straight serial connector.
- Cable length is 3 meters.
Commissioning and Maintenance
Use the front key switch to select operating mode. Check the status LEDs during power-up and run. Use the 1784-CF128 CompactFlash card for automatic program loading. The card also supports modular data transfer to another compatible controller. It protects the program from unwanted deletion. This design reduces downtime and simplifies spare-part replacement.
Compatibility
- Works with 1769 Compact I/O modules, up to 16 in the local chassis.
- Supports up to 2 remote I/O banks.
- Uses 1747-CP3 or 1756-CP3 programming cables.
- Accepts 1784-CF128 CompactFlash memory.
- Fits open style enclosures.
- Supports Ladder, Statement List and Function Block programming.
Certifications and Compliance
The 1768-L43 carries a T4 temperature code (135 °C). It is compatible with open style enclosure ratings. It has 30 V isolation between RS-232 and system, tested at 500 V AC. Always confirm final site certifications and local standards before installation.
Typical Applications
- Medium-sized machine control
- Process control with CompactLogix architecture
- Motion applications
- Safety controller integration
- Obsolete control system upgrades
- Remote I/O expansion in 2 banks
Diagnostic Capability
Front-panel LEDs show PWR, I/O PWR, RUN, FORCE, MEM SAVE, I/O, OK, CF, DCH0 and CH0. These indicators help engineers verify power, communication and memory status. The key switch supports manual mode changes for troubleshooting.
FAQ
Q: What memory does the 1768-L43 have?
A: It has 2 MB integrated memory. You can add a 1784-CF128 CompactFlash card.
Q: How many I/O modules can it support?
A: It supports up to 16 1769 I/O modules and up to 2 remote I/O banks.
Q: What communication port is available?
A: One isolated RS-232 port with a maximum speed of 38.4 Kbps.
Q: Which cable should I use?
A: Use 1747-CP3 or 1756-CP3.
Q: What is the operating temperature range?
A: 0 to +60 °C (32 to 140 °F).
Q: Does it support DIN rail mounting?
A: Yes. It supports DIN rail and panel mounting.
Q: How do I contact Oiltech Controls?
A: Email info@oiltechcontrols.com or call +86 158 8020 0923 on WhatsApp.
Packaging and Shipping
Package contents: 1768-L43 controller, power supply requirement reference, end cap, serial cable reference, and mounting screws or DIN rail reference. Shipping weight is about 2 lb. Shipping dimensions are about 8 x 8 x 5 in. We ship by FedEx, UPS and DHL. A 12-month warranty applies to eligible items. Technical verification is completed before dispatch.
Reviews
There are no reviews yet.