Siemens 6ES5381-7AA11 Timer/Counter Module

This timer/counter module handles time-based control and pulse counting tasks. It integrates directly into SIMATIC S5 racks for industrial automation systems. Therefore, this component suits sequence control, batch counting, and cycle timing applications.

Physical Dimensions and Weight Specifications

The Siemens 6ES5381-7AA11 occupies one standard slot in the S5 rack. Its housing measures 233 mm in depth for backplane connectivity. The module weighs approximately 0.38 kg for easy handling. Consequently, technicians can install this unit without rack reinforcement.

Interface Types and Connection Layout

The Siemens 6ES5381-7AA11 provides a 48-pin front connector for field wiring. A separate 20-pin backplane connector supplies power and data signals. The front panel carries LED indicators for each active channel. Hence, operators can monitor timer and counter states at a glance.

Component Count and Channel Configuration

This module contains one main board with four independent timer channels. Each timer shares circuitry with a dedicated 16-bit counter. You will also find eight digital inputs for start and reset functions. An onboard crystal oscillator provides the base clock signal for all timing operations.

Energy Storage and Power Consumption

The Siemens 6ES5381-7AA11 draws 150 mA from the 5V backplane supply. A small capacitor bank maintains current timer values for 10 milliseconds. This short storage protects counts during brief power dips. The module does not require a backup battery for normal operation.

Operating Modes and Timing Accuracy

Users can configure each channel as either a timer or a counter. The timer modes include on-delay, off-delay, and pulse generation. A quartz crystal maintains timing accuracy within 0.1% over full temperature range. Therefore, this module provides reliable performance for precision control sequences.