Siemens 6ES5135-3KA13 Central Controller

Why This Central Controller Powers Your Larger S5 System

This central controller handles complex logic for medium to large automation tasks. You get a high-performance Siemens 6ES5135-3KA13 for SIMATIC S5 programmable controllers. It supports up to 64k words of user program memory. Therefore, your system can run sophisticated processes without performance bottlenecks.

Technical Specifications and Physical Details

The Siemens 6ES5135-3KA13 includes an integrated power supply for the backplane voltage. It features one serial interface for programming and diagnostics. This controller fits into a standard S5 rack slot. Its dimensions measure approximately 250 mm in width and 25 mm in height. The unit weighs around 0.75 kg for straightforward installation. This central processor stores its program in battery-backed CMOS RAM. Consequently, your logic remains safe for several months without external power.

Below is the detailed breakdown of the hardware specifications.

Parameter	Specification
Product Model	6ES5135-3KA13
Product Type	Central Controller
Brand	Siemens
Family	SIMATIC S5
Program Memory	64k words (max)
Power Supply	Integrated
Storage Type	Battery-backed CMOS RAM
Communication Port	1 x serial (TTY / RS-232)
Slot Requirement	1 S5 rack slot
Dimensions (W x H)	Approx. 250 x 25 mm
Approx. Weight	0.75 kg
Power Source	Backplane + integrated supply
Energy Storage	Battery-backed memory
Component Count	Single integrated board

Installation and Programming Notes

This controller slides into any standard S5 rack slot. You must connect the external 24V DC supply to the terminal block. The Siemens 6ES5135-3KA13 accepts STEP 5 programming language. Therefore, existing S5 logic transfers without major modifications. Always replace the backup battery every two years. A depleted battery will cause complete memory loss during a power outage.