1768-L43 AB PLC CPU 2 MB RS232 16 IO Module Capacity

Parameters

• Product type: Modular PLC controller
• User memory: 2 MB
• Built-in communication: 1 isolated RS-232 port
• Serial rate: Up to 38.4 kbps
• Built-in Ethernet: None; requires a compatible network module
• 1768 module capacity: Up to 2 modules
• 1769 I/O capacity: Up to 16 modules, subject to system power limits
• I/O banks: Up to 2
• Power supply options: 1768-PA3 or 1768-PB3
• Backup storage: Optional 1784-CF128 CompactFlash card
• Programming: Compatible RSLogix 5000 version

The AB 1768-L43 is a modular PLC controller with 2 MB of user memory and an isolated RS-232 connection. It supports a system using 1768 communication or motion modules and 1769 expansion I/O. The catalog limits allow up to two 1768 modules and sixteen 1769 I/O modules, subject to the actual arrangement and power budget. For an existing installation, retain the complete module list and firmware information when requesting a quote. Power supply, network hardware, memory card and end-cap requirements should be confirmed separately.

Supply and Quotation

Request a quotation for AB 1768-L43 with quantity, destination and preferred condition. Send the installed unit label and required firmware information. We will confirm availability, included parts, inspection scope, delivery terms and warranty for the specific offer. Programming software, machine projects and optional system components require separate confirmation.

Compatibility

Verify the 1768 power supply, communication modules, 1769 I/O layout and project firmware. This controller has no embedded Ethernet port; retain the required network module.

FAQ

Q1. Does 1768-L43 have built-in Ethernet?

No. It has an isolated RS-232 port. Ethernet connectivity requires a compatible 1768 network module.

Q2. How many 1769 I/O modules can it support?

The catalog maximum is sixteen, arranged within the supported bank and power limits. Check the complete system load before selecting hardware.

Q3. Which power supply type is required?

The listed supply options are 1768-PA3 and 1768-PB3. Confirm the existing supply reference and incoming voltage before ordering.

Q4. How can I request a quotation for 1768-L43?

Send the complete model, quantity, preferred condition and destination. Include the hardware series and firmware if matching an installed unit. Price and availability are confirmed in the offer.

Q5. Does the supply include the machine program or software license?

Hardware supply does not automatically include application files, passwords or software licenses. Confirm access to the original project and compatible engineering software before replacement.

Q6. What inspection information can be requested?

Request clear label and connector photos, firmware identification and an agreed power-up or communication check where applicable. Confirm accessories, packaging, dispatch timing and warranty before shipment.