PLC Controller Unit for Conveyor Interface Modules

Product Specifications

Technical details and manufacturing context for PLC Controller Unit

Definition

A PLC Controller Unit is the core computational and control element of a Conveyor Interface Module. It executes programmed logic to manage the operation of conveyor systems, including motor control, sensor input processing, safety interlock monitoring, and communication with higher-level supervisory systems. It interprets commands, sequences operations, and ensures coordinated movement and material handling along the conveyor line. The unit is designed for integration into industrial control cabinets and is typically mounted on a DIN rail. It features a polycarbonate housing that protects internal electronic components, including a printed circuit board populated with integrated circuits, resistors, and capacitors. The unit operates on a 24 V DC supply (with a tolerance of ±10%) and consumes between 15 and 60 watts depending on the I/O configuration. It provides 16 digital inputs (Type 3, 24 V DC) and 16 digital outputs (transistor, 0.5 A per channel), conforming to IEC 61131-2. The cycle time for processing 1K instructions ranges from 0.1 to 10 milliseconds, and the program memory is between 64 and 256 KB, sufficient for typical conveyor logic. The unit is designed for industrial environments, with an operating and storage temperature range of -40 to 85 °C, relative humidity of 5 to 95% (non-condensing), and a degree of protection of IP20. Dimensions are 120 x 90 x 60 mm (W x H x D), and weight varies from 0.5 to 1.0 kg depending on options. All specifications are reference values that must be verified with the legal manufacturer for the specific model and application.

Working Principle

The unit operates by continuously scanning a user-programmed logic sequence stored in its memory. It reads digital and analog input signals from sensors (e.g., photoelectric, proximity) and devices on the conveyor. Based on this input data and the internal program, it processes the logic and updates its output signals to control actuators like motor starters, solenoids, and indicator lights, thereby governing the conveyor's start, stop, speed, and direction.

Common Materials

Electronic components (ICs, resistors, capacitors), Printed Circuit Board (PCB), Plastic/Polycarbonate housing

Technical Parameters

Parameter	Typical range	Notes & selection driver
Rated Supply Voltage	24 ±10% V DC	Outside this range, the unit may malfunction.IEC 61131-2
Power Consumption	15–60 W	Depends on I/O configuration.
Digital Inputs	16 channels	Type 3, 24 V DC.IEC 61131-2
Digital Outputs	16 channels	Transistor, 0.5 A per channel.IEC 61131-2
Cycle Time	0.1–10 ms	Per 1K instructions.IEC 61131-3
Program Memory	64–256 KB	Sufficient for typical conveyor logic.
Operating Temperature	-40–85 °C	Extended range for industrial environments.IEC 60068-2-1/2
Storage Temperature	-40–85 °C	Same as operating range.IEC 60068-2-1/2
Relative Humidity	5–95 %	Non-condensing.IEC 60068-2-78
Degree of Protection	IP20	For cabinet mounting.IEC 60529
Dimensions (W x H x D)	120 x 90 x 60 mm	DIN rail mountable.
Weight	0.5–1.0 kg	Depending on options.

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

Central Processing Unit (CPU)
Executes the control program, performs logic operations, and manages data.

Material: Semiconductor (Silicon)
Input/Output (I/O) Modules
Interface for connecting field devices (sensors, actuators) to the CPU.

Material: Electronic components, PCB
Power Supply Unit
Converts incoming AC/DC power to regulated DC voltages required by internal circuits.

Material: Electronic components (transformers, regulators), PCB
Communication Interface
Enables data exchange with programming devices, HMIs, and other controllers.

Material: Electronic components (transceivers, connectors), PCB

Applied To / Applications

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

Conveyor Interface Module

View system integration details

Manufacturers of PLC Controller Unit

Manufacturer profiles associated with PLC Controller Unit.

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Frequently Asked Questions

What is the rated supply voltage and its tolerance?

The rated supply voltage is 24 V DC with a tolerance of ±10%, as per IEC 61131-2. Operating outside this range may cause malfunction.

How many digital inputs and outputs does the unit have?

The unit provides 16 digital inputs (Type 3, 24 V DC) and 16 digital outputs (transistor, 0.5 A per channel), conforming to IEC 61131-2.

What is the operating temperature range?

The operating temperature range is -40 to 85 °C, as per IEC 60068-2-1/2. Storage temperature is the same range.

What is the degree of protection and mounting method?

The degree of protection is IP20 (IEC 60529), suitable for cabinet mounting. It is DIN rail mountable with dimensions of 120 x 90 x 60 mm.

Data Basis

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

Preliminary Technical Classification

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pressure:	Atmospheric (non-pressurized enclosure)
other spec:	IP65 rated enclosure, 24V DC power input (±15%), 10-90% non-condensing humidity
temperature:	0°C to 60°C (operating), -20°C to 70°C (storage)

PLC Controller Unit

Product Specifications

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