Communication Chipset for PLC Interfaces

Product Specifications

Technical details and manufacturing context for Communication Chipset

Definition

A communication chipset is a specialized integrated circuit or set of chips that forms the core communication subsystem within a Programmable Logic Controller (PLC) Interface. It handles the encoding, decoding, transmission, and reception of data according to industrial communication protocols such as PROFIBUS, Modbus, and Ethernet/IP, enabling the PLC to connect with sensors, actuators, HMIs, and other control systems. This component is essential for industrial automation, ensuring reliable and timely data exchange in manufacturing and process control environments. The chipset typically operates with a supply voltage of 3.3–5 V DC, supports industrial temperature ranges from -40 to 85 °C, and offers data rates from 10 to 1000 Mbps for Ethernet communication. It supports multiple protocols including PROFINET, EtherNet/IP, and Modbus TCP, with power consumption ranging from 0.5 to 2.5 W depending on active ports. The chipset provides ESD protection up to ±8 kV (contact discharge) and galvanic isolation of 1500–3000 V RMS. It is available in surface-mount packages such as QFN-48 and LQFP-64, and operates in non-condensing humidity of 10–90% RH. The mean time between failures (MTBF) is estimated at 100,000 to 500,000 hours at 40 °C ambient. Materials include silicon semiconductor, copper interconnects, and ceramic or plastic packaging. These specifications are typical for PLC interface modules and should be verified with the manufacturer for specific models. The chipset is designed to meet industrial standards such as IEC 60068-2-14 for temperature, IEEE 802.3 for Ethernet, IEC 61158 for fieldbus, IEC 61000-4-2 for ESD, IEC 60747-5-5 for isolation, JEDEC MS-026 for packaging, IEC 60068-2-78 for humidity, and Telcordia SR-332 for reliability. Always confirm model-specific values and standards with the legal manufacturer or supplier.

Working Principle

The chipset receives digital data from the PLC's central processing unit. Its internal logic and protocol stacks format this data into packets compliant with specific industrial communication standards. It then manages the physical layer signaling via transceivers to transmit these packets over the network medium, such as twisted pair or fiber. Conversely, it receives incoming signals, decodes them, checks for errors, and presents valid data to the PLC CPU for processing. This bidirectional data flow ensures seamless integration with industrial networks.

Common Materials

Silicon (Semiconductor), Copper (Interconnects), Ceramic or Plastic (Package)

Technical Parameters

Parameter	Typical range	Notes & selection driver
Supply Voltage	3.3–5 V DC	Typical for PLC interface modules
Operating Temperature	-40–85 °C	Industrial gradeIEC 60068-2-14
Data Rate	10–1000 Mbps	Ethernet communicationIEEE 802.3
Protocol Support	PROFINET, EtherNet/IP, Modbus TCP	Multi-protocol supportIEC 61158
Power Consumption	0.5–2.5 W	Depends on active ports
ESD Protection	±8 kV	Contact dischargeIEC 61000-4-2
Isolation Voltage	1500–3000 V RMS	Galvanic isolationIEC 60747-5-5
Package Type	QFN-48, LQFP-64	Surface mountJEDEC MS-026
Operating Humidity	10–90 % RH	Non-condensingIEC 60068-2-78
MTBF	100000–500000 hours	At 40°C ambientTelcordia SR-332

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

Protocol Processor Core
Executes the firmware or hardware logic for specific communication protocol stacks.

Material: Silicon
PHY (Physical Layer) Transceiver
Handles the analog signaling, converting digital data to signals suitable for the transmission medium (e.g., RS-485, Ethernet).

Material: Silicon
Memory (RAM/Flash)
Stores firmware, configuration data, and temporary communication buffers.

Material: Silicon
Interface Controller (e.g., SPI, UART) Part
Manages the internal data bus connection to the PLC's main CPU or other interface components.

Material: Silicon

Applied To / Applications

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

Programmable Logic Controller (PLC) Interface

View system integration details

Manufacturers of Communication Chipset

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Frequently Asked Questions

What protocols does this communication chipset support?

The chipset supports multiple industrial protocols including PROFIBUS, Modbus, Ethernet/IP, PROFINET, and Modbus TCP, as listed in the specifications. However, actual protocol support may vary by model, so verify with the manufacturer.

What is the operating temperature range?

The chipset is rated for an industrial temperature range of -40 to 85 °C, per IEC 60068-2-14. Ensure the application environment stays within this range for reliable operation.

What is the typical power consumption?

Power consumption ranges from 0.5 to 2.5 W, depending on the number of active ports and communication activity. Refer to the datasheet for specific values.

What isolation voltage does it provide?

The chipset provides galvanic isolation of 1500–3000 V RMS, according to IEC 60747-5-5. This helps protect against voltage transients and ground loops.

Data Basis

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

Preliminary Technical Classification

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pressure:	Not applicable (solid-state component)
other spec:	Supply voltage: 1.8V to 3.3V, Data rate: Up to 100 Mbps, Protocol support: Modbus, Profinet, EtherNet/IP, EtherCAT
temperature:	-40°C to +85°C (industrial grade), -40°C to +125°C (extended industrial)

Communication Chipset

Product Specifications

Applied To / Applications

Industrial Ecosystem & Supply Chain Structure

Application Fit & Sizing Matrix

Reliability & Engineering Risk Analysis

Compliance & Manufacturing Standards