Digital | analog output modules for automation controllers
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Output modules are an essential part of programmable logic controllers (PLCs), enabling control systems to send signals to various electrical and automation devices. They ensure the connection between controller logic and the real world – from simply switching on a lamp to controlling complex industrial motors, heating, cooling, or control valves.
Modules can be digital – used to switch devices on/off, or analog – allowing precise process regulation by transmitting variable values (e.g., current or voltage).Properly selected modules ensure reliable, safe, and efficient operation of the entire automation system.
Functions
Digital Output Modules (DO): transmit “on/off” signals to relay devices, lamps, sirens, motors.
Analog Output Modules (AO): send variable signals (0–10 V, 0–20 mA), allowing adjustment of device operation – e.g., changing motor speed, fan intensity, or temperature.
Signal isolation: most modules have isolation that protects against interference and ensures system reliability.
Flexible connectivity: compatible with various sensors, drives, lighting, or heating systems.
Usage
For engineers: essential for designing industrial control systems – ensure precise process management, integration with sensors and drives.
For electricians/installers: used in PLC-based panels – allow external device connection, ensure clear signal structure and easy wiring.
In industry: used in production lines, machine automation, robotics, building management.
Pros
Choice between digital and analog modules depending on needs
Precise process control (AO) and reliable ON/OFF control (DO)
Compatible with most PLC systems
Reliable isolation and protection against disturbances
Flexible application from household to complex industry
Cons
Require technical knowledge – may be difficult for ordinary users to select correctly
Differ by signal type (current, voltage), so careful selection is necessary
More expensive than simple switches or contactors, but provide much greater functionality
Digital and analog output modules are key PLC components ensuring that control signals reach real devices and processes. They enable precise control of industrial, commercial, or household processes, ensuring efficiency, reliability, and safety.
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Digital output module | 16 outputs | 24VDC | PNP | 6ES7132-6BH01-0BA0 SiemensCode: 6ES7132-6BH01-0BA0Price 10757 € VAT incl.(88 90 € VAT excl.)
Analog output module | 2 outputs | 24VDC | 6ES7532-5NB00-0AB0 SiemensCode: 6ES7532-5NB00-0AB0Price 31291 € VAT incl.(258 60 € VAT excl.)
Analog output module | 4 outputs | 24VDC | 6ES7135-6HD00-0BA1 SiemensCode: 6ES7135-6HD00-0BA1Price 23535 € VAT incl.(194 50 € VAT excl.)
