Output Logic Unit for State Machine Controllers

Product Specifications

Technical details and manufacturing context for Output Logic Unit

Definition

The Output Logic Unit is a critical part of a State Machine Controller responsible for determining and producing the appropriate output signals or actions when the controller transitions to or resides in a specific state. It interprets the current state information and any relevant input conditions to execute control commands, activate devices, or trigger subsequent processes in automated systems. This unit is typically implemented as a semiconductor-based module, often encapsulated in plastic, with copper interconnects. It operates synchronously with the state machine's clock cycle, receiving the current state identifier from the state register and evaluating it against predefined logic rules or lookup tables. Based on this evaluation, it generates corresponding output signals that control external actuators, indicators, or other system components. The unit is designed to meet various industrial standards, including IEC 61131-2 for electrical characteristics and IEC 60529 for protection classes. Key parameters include a supply voltage of 24 V DC ±10%, output current per channel ranging from 0.5 to 2 A (with derating above 60°C), and a number of outputs configurable from 8 to 32 depending on the model. Switching frequency ranges from 1 to 100 kHz, with higher frequencies for solid-state outputs. Response time from input change to output is between 0.1 and 10 ms. Output type is selectable via hardware as PNP or NPN. Protection class varies from IP20 to IP65, with IP65 requiring a sealed enclosure. Operating temperature ranges from -40 to 85°C, and storage temperature from -40 to 105°C. Humidity (non-condensing) is 5 to 95% RH. Isolation voltage between output and logic is 1500 V AC. Weight depends on the number of outputs, ranging from 0.2 to 1.5 kg. These values are reference ranges; verify model-specific specifications with the manufacturer.

Working Principle

The unit receives the current state identifier from the state register and evaluates it against predefined logic rules or lookup tables. Based on this evaluation, it generates corresponding output signals that control external actuators, indicators, or other system components. It typically operates synchronously with the state machine's clock cycle.

Common Materials

Semiconductor (Silicon), Copper, Plastic (Encapsulation)

Technical Parameters

Parameter	Typical range	Notes & selection driver
Supply Voltage	24 ±10% V DC	Outside range may cause malfunctionIEC 61131-2
Output Current per Channel	0.5–2 A	Derating above 60°C
Number of Outputs	8–32	Configurable per model
Switching Frequency	1–100 kHz	Higher for solid-state outputs
Response Time	0.1–10 ms	From input change to output
Output Type	PNP/NPN	Selectable via hardwareIEC 61131-2
Protection Class	IP20–IP65	IP65 requires sealed enclosureIEC 60529
Operating Temperature	-40–85 °C	Derating above 60°CIEC 60068-2-1/2
Storage Temperature	-40–105 °C	Non-operatingIEC 60068-2-1/2
Humidity (Non-condensing)	5–95 % RH	Condensation may cause shortsIEC 60068-2-78
Isolation Voltage	1500 V AC	Between output and logicIEC 61131-2
Weight	0.2–1.5 kg	Depends on number of outputs

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Components / BOM

Logic Gates Array
Implements Boolean logic functions to determine output states

Material: Semiconductor
Output Drivers Part
Amplifies logic signals to appropriate voltage/current levels for external devices

Material: Semiconductor with copper interconnects
Output Latches/Registers Part
Temporarily stores output values until next clock cycle

Material: Semiconductor
Protection Circuits
Safeguards against overcurrent, overvoltage, and electrostatic discharge

Material: Semiconductor with passive components

Applied To / Applications

This component is essential for the following industrial systems and equipment:

State Machine Controller

View system integration details

Manufacturers of Output Logic Unit

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Frequently Asked Questions

What is the function of an Output Logic Unit?

The Output Logic Unit processes the current state and input conditions to generate output signals that control actuators or other devices in automated systems.

What are typical supply voltage requirements?

The supply voltage is typically 24 V DC ±10%, as per IEC 61131-2. Always verify the exact requirement for your specific model.

How many outputs can the unit have?

The number of outputs is configurable per model, typically ranging from 8 to 32. Check the datasheet for your specific configuration.

What standards apply to this component?

Relevant standards include IEC 61131-2 for electrical characteristics and IEC 60529 for protection classes. These are references for verification, not proof of compliance.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records.

Preliminary Technical Classification

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pressure:	0 to 100 psi
other spec:	Max signal frequency: 1 MHz, Power supply: 24V DC ±10%
temperature:	-40°C to +85°C

Output Logic Unit

Product Specifications

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