Siemens 6GK1143-0AB00 Communication Processor

Why This Communication Processor Connects S5 to Industrial Ethernet

This communication processor module links SIMATIC S5 controllers to Industrial Ethernet networks. You get a powerful Siemens 6GK1143-0AB00 for high-speed data exchange. It supports the ISO and TCP/IP transport protocols. Therefore, your system can communicate with modern PCs and controllers seamlessly.

Technical Specifications and Physical Details

The Siemens 6GK1143-0AB00 features one AUI interface for external transceivers. It handles baud rates up to 10 Mbps on standard Ethernet segments. This module fits into a single S5 rack slot. Its dimensions measure approximately 250 mm in width and 25 mm in height. The unit weighs around 0.55 kg for straightforward installation. This communication processor stores its firmware in flash memory. Consequently, you can update the operating system without replacing the module.

Below is the detailed breakdown of the hardware specifications.

Parameter	Specification
Product Model	6GK1143-0AB00
Product Type	Communication Processor
Brand	Siemens
Family	SIMATIC S5 / Industrial Ethernet
Network Protocol	ISO, TCP/IP
Interface Type	AUI (15-pin D-sub)
Baud Rate	10 Mbps
Slot Requirement	1 S5 rack slot
Dimensions (W x H)	Approx. 250 x 25 mm
Approx. Weight	0.55 kg
Firmware Storage	Flash memory (updatable)
Energy Storage	None (volatile configuration)
Component Count	Single integrated board

Installation and Network Integration

This processor connects to an Ethernet transceiver via the AUI cable. You must set the station address using the DIP switches on the board. The Siemens 6GK1143-0AB00 requires configuration blocks in your S5 program. Therefore, allocate memory space for send and receive buffers first. Always use an external transceiver with SQE test disabled. Otherwise, network collisions will cause intermittent communication failures.