Siemens 6ES5265-8MA01 – High-Speed Sub-Control Module

The Siemens 6ES5265-8MA01 handles time-critical control tasks independently from the main CPU. This sub-control module measures 250 mm in depth and 25 mm in width. It fits standard SIMATIC S5 rack slots without any modifications. The unit weighs 0.47 kg, making installation quick and straightforward.

Processing Speed and Dedicated Functions

This high-speed sub-control module executes logic every 1 millisecond for fast response. The Siemens 6ES5265-8MA01 handles up to 64 digital inputs and 64 digital outputs directly. It processes eight independent counter channels at frequencies up to 10 kHz. The module includes four position encoder inputs for motion control applications. A dedicated 16-bit microprocessor manages all high-speed tasks locally.

Internal Architecture and Component Layout

The module contains three separate circuit boards inside its metal housing. One board handles the dedicated processor, while another manages I/O scanning. The third board provides isolation for all field connections. The Siemens 6ES5265-8MA01 includes 4 kB of local memory for user sub-programs. A 48-pin edge connector interfaces with the S5 backplane for data exchange. The module stores 68 µF of capacitance for power supply filtering only.

Input and Output Specifications

You will find 32 screw terminals on the front panel for field wiring. The Siemens 6ES5265-8MA01 accepts 24V DC inputs with 5 mA per channel. Its transistor outputs switch 0.5 amps at 24V DC for each channel. The module includes dedicated interrupt inputs for event-driven processing. High-speed counters capture pulses without burdening the main processor.

Power Requirements and Environmental Tolerance

The Siemens 6ES5265-8MA01 draws 180 mA at 5V DC from the backplane supply. It requires external 24V DC power for input and output circuits. The module operates reliably from 0°C to 60°C ambient temperature. It tolerates humidity levels up to 95 percent without any condensation issues. The unit withstands vibration up to 2g from 10 to 500 Hz.

Below is a complete summary of its technical specifications.

The Siemens 6ES5265-8MA01 replaces older sub-control modules in S5-135U systems. You do not need any special programming tools beyond standard S5 software. This module also shares data with the main CPU through dual-port memory. Consequently, it handles fast packaging lines and high-speed positioning applications.