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The Yokogawa SDV144-S63 is a high-reliability Digital Input Module designed specifically for the ProSafe-RS Safety Instrumented System (SIS).

Unlike standard DCS modules, the SDV144 is engineered to meet stringent functional safety requirements, often used in Emergency Shutdown (ESD) and Fire and Gas (F&G) systems.

1. Introduction

The SDV144-S63 is a 16-channel, 24V DC digital input module.

The “S6” in the suffix typically indicates that the module features conformal coating (ISA G3 compliant) for protection against corrosive environments, while the “3” denotes the specific revision or style.

It performs continuous self-diagnostics to detect internal failures, ensuring that it will “fail-safe” in the event of a hardware malfunction.

It is a core component for achieving SIL3 (Safety Integrity Level 3) ratings in industrial processes.

2. Technical Parameter Table

SDV144-S63

Feature	Specification
Number of Inputs	16-channel, isolated
Input Voltage	24 V DC
Input ON/OFF Voltage	ON: $\ge$ 18 V DC; OFF: $\le$ 5 V DC
Input Current (at 24V)	Approx. 4.1 mA per channel
Self-Diagnostics	Periodic pulse testing for “stuck-at” faults
Isolation	Channels are isolated from the system logic
Redundancy	Supported (can be used in dual-redundant pairs)
Current Consumption	Max. 0.5 A (Internal 5V DC)
Environment Protection	S6 Suffix: G3 Conformal Coating
Safety Certification	TUV SIL3 certified (when used in ProSafe-RS)

3. Product Advantages and Features

Built-in Self-Test: The module executes a “line-fault” detection and internal pulse test to ensure that the input circuitry hasn’t failed in a way that would mask a real safety signal.

SIL3 Compliance: Specifically designed to meet IEC 61508 safety standards, providing the highest level of risk reduction for a single logic solver.

Dual Redundancy: Two SDV144 modules can be paired to ensure that a single module failure does not cause a process trip (High Availability).

Hot-Swappable: Modules can be replaced while the safety system is active without interrupting the logic or causing a trip.

High Resolution Status: Provides not just “ON/OFF” data, but also diagnostic information regarding the health of the field wiring (with appropriate terminal boards).

4. Application Cases

Emergency Shutdown (ESD): Monitoring push-buttons, pressure switches, or level switches that trigger a plant shutdown during a dangerous event.

Fire and Gas (F&G) Systems: Interfacing with smoke detectors, heat sensors, or flame detectors to initiate fire suppression.

Burner Management Systems (BMS): Ensuring safety interlocks are met before and during the operation of industrial boilers or furnaces.

High-Pressure Protection: Connecting to pressure-sensing elements to prevent vessel over-pressurization.

SDV144-S63

5. Related Models & Same Series

The SDV144 is part of the ProSafe-RS FIO (Field network I/O) family.

Other Models in the Same Series

SDV531 / SDV541: Digital Output Modules (Safety) used to actuate valves or trip relays.

SDV144-S13 / S53: Variants with different coating levels or revision styles.

SAI143: Analog Input Module (Safety) for 4-20 mA safety-critical transmitters.

SAV144: A version of the digital input module with different voltage thresholds or interface specs.

Related System Components

SSC60S / SSC60D: Safety Control Stations (CPUs) that process the logic from the SDV144.

SST144: Specialized Terminal Boards used to connect field wiring to the SDV144.

AKB331: Cables used to connect the SDV144 to its terminal board.

BENTLY	123M4610
BENTLY	3500/42M   140734-02
BENTLY	3500/05-01-03-00-00-00
BENTLY	60M100-00
BENTLY	2300/25-00
BENTLY	3500/25   125792-01
BENTLY	126632-01
BENTLY	125704-01
BENTLY	125736-01
BENTLY	3500/34   125696-01
BENTLY	125388-01
BENTLY	1-536067-4
BENTLY	3500/64M   140734-05
BENTLY	128275-01
BENTLY	128276-01

The Yokogawa AIP830-111 is a specialized Operation Keyboard designed for the CENTUM VP and CENTUM CS 3000 Human Interface Stations (HIS).

Unlike a standard PC keyboard, it is purpose-built for the rigors of a 24/7 industrial control room, providing tactile, high-speed access to critical plant functions.

1. Introduction

The AIP830-111 is an essential tool for plant operators, featuring dedicated keys for alarm management, window switching, and process control (such as Open/Close or Increase/Decrease).

The “-111” suffix typically denotes the specific interface and mounting style (often USB-based with a specific language or layout configuration).

It allows operators to respond to emergencies instantly without navigating through multiple on-screen mouse menus.

2. Technical Parameter Table

Feature	Specification
Model Code	AIP830-111
Interface	USB (Standard Type A)
Power Supply	5V DC (Supplied via USB port)
Current Consumption	Max. 100 mA
Key Layout	Operation keys (Alarm, Window, Control) + Function keys
Built-in Hardware	Internal buzzer (for touch confirmation/alarms)
Dimensions	440 (W) × 51 (H) × 172 (D) mm (Standard Desktop type)
Weight	Approx. 1.2 kg
Operating Temp	5 to 50°C
Compatibility	Windows-based HIS (CENTUM VP / CS 3000)

3. Product Advantages and Features

One-Touch Alarm Response: Dedicated keys allow operators to acknowledge alarms or silence sirens instantly.

Tactile Feedback: Professional-grade membrane or mechanical switches designed for millions of presses, providing better feedback than a touchscreen.

AIP830-111

Simplified Control: Features specific keys for “Increase/Decrease” and “Fast/Slow” to adjust setpoints or valve positions precisely.

Window Management: Hardwired keys to toggle between “Overview,” “Graphic,” and “Trend” screens instantly.

Industrial Durability: Dust-resistant design suited for control room environments where standard consumer keyboards often fail.

Integrated Buzzer: Provides audible confirmation of key presses, ensuring the operator knows the command was registered.

BENTLY	135489-03
BENTLY	125388-01H
BENTLY	3500/60
BENTLY	128276-011
BENTLY	128275-01-E
BENTLY	3500/34
BENTLY	133396-01
BENTLY	125680-01
BENTLY	135137-01
BENTLY	3500/61
BENTLY	3500/22M 146031-01
BENTLY	3500/22M 288055-01
BENTLY	3500/15 127610-01
BENTLY	3500/60 163179-01
BENTLY	3500/40M 140734-01
BENTLY	3500/20 125744-02
BENTLY	3500/32 125712-01
BENTLY	3500/53 133388-01
BENTLY	3500/05-02-04-00-00-00

4. Application Cases

Central Control Rooms (CCR): The primary interface for operators in refineries, chemical plants, and power stations.

Emergency Response Stations: Used where rapid, error-free input is required during a process upset or trip.

Operator Training Simulators (OTS): Providing a realistic hardware interface for trainees to learn plant “muscle memory.”

Consolidated Control Centers: Where multiple DCS domains are managed from a single desk.

AIP830-111

5. Related Models & Same Series

The AIP830 series evolved from older, bulkier operator consoles to modern USB-compliant peripherals.

Other Models in the Same Series

AIP830-101: An earlier version or different regional layout (e.g., specific language variants).

AIP830-001: The legacy version used with older interface types before USB standardization.

AIP831: A similar model often featuring an integrated pointing device (trackball or touch-pad).

Related System Components

AIP827: A compact operation keyboard version with fewer keys for smaller consoles.

AIP891: Specialized dust-proof covers for the AIP830 series.

VI401 / VC401: The Vnet/IP cards that allow the PC (hosting the AIP830) to talk to the controllers.

The Yokogawa S9361DH-00 is a high-performance Terminal Board Module primarily used within the CENTUM XL and CENTUM CS legacy Distributed Control Systems (DCS).

It acts as a rugged interface point where field wiring (sensor and actuator signals) is connected before being routed to the internal logic of the DCS via I/O modules.

1. Introduction

The S9361DH-00 is a classic terminal board designed for heavy-duty industrial environments. It provides a organized, secure landing spot for field cables, ensuring that signals from the plant floor are cleanly transitioned into the control system.

Although it is a legacy component, it is widely utilized in existing plants for its durability and the “pluggable” nature of its connections, which simplifies maintenance and module replacement.

2. Technical Parameter Table

Feature	Specification
Model	S9361DH-00
Product Type	Terminal Board / Terminal Block Module
Terminal Count	16-point
Voltage Rating	60 V to 300 V AC/DC
Current Rating	Up to 10 A
Isolation Voltage	500 V to 1000 V AC
Wire Size Compatibility	0.2 to 2.5 $mm^2$ (approx. 24 to 12 AWG)
Contact Resistance	$\le 20\ m\Omega$
Operating Temp	-40°C to +85°C
Weight	Approx. 0.24 kg
Dimensions	17.8 (W) x 4.6 (H) x 24.9 (D) cm

3. Product Advantages and Features

High Reliability: Built with tin-plated copper alloy or phosphor bronze contacts to ensure long-term signal integrity without oxidation.

Compact Design: Optimized dimensions allow for high-density mounting within standard 19-inch racks or specialized DCS cabinets.

Rugged Environmental Specs: With an operating range down to -40°C, it is suitable for unheated field enclosures in harsh climates.

Clear Identification: Features distinct markings and labeling areas for each terminal point, reducing the risk of wiring errors during installation or troubleshooting.

Secure Connections: Uses high-torque screw terminals (M3 or M3.5 style) to prevent wires from loosening due to vibration.

4. Application Cases

Legacy System Support: Maintaining and expanding existing CENTUM XL or CENTUM CS installations in refineries and power plants.

Discrete Signal Landing: Used for terminating 24V DC or 110V AC digital signals from field switches and relays.

Interposing Terminal Point: Serving as a bridge between high-voltage field equipment and low-voltage digital I/O modules.

Cabinet Retrofitting: Often used in refurbishing older control panels where standard Yokogawa footprint compatibility is required.

BENTLY	132417-01
Bently	125840-01
BENTLY	330100-90-00
BENTLY	330100-90-01
BENTLY	ASSY78462-01U
BENTLY	1900/27
BENTLY	135489-01
BENTLY	1900/55
BENTLY	125800-01
BENTLY	135613-02
BENTLY	135473-01
BENTLY	136188-01
BENTLY	125760-01
BENTLY	125768-01

5. Related Models & Same Series

The S9361DH-00 is part of a broad range of termination boards tailored to different signal types (Analog vs. Digital).

Other Models in the Same Series

S9260DE-01: A related terminal board module used for different I/O densities.

S9185FA: Often used for specialized analog signal termination.

S9361DH-S1: The version featuring G3 conformal coating for protection against corrosive gases.

Related System Components

KS1 / KS2 Cables: The multi-core cables that connect this terminal board to the actual I/O modules.

AEA4D / AEP7D: Terminal boards used in newer CENTUM VP systems (the modern successors to the S9xxx series).

The Yokogawa ATK4A-00 S1 is a specialized KS Cable Interface Adapter (also known as a Terminal Block Adapter)

designed for the CENTUM VP and CENTUM CS 3000 Distributed Control Systems (DCS).

It serves as the physical bridge between field I/O modules and the terminal boards via standard KS cables.

1. Introduction

The ATK4A-00 S1 is an accessory module that mounts directly onto the front of Yokogawa FIO (Field network I/O) modules.

Its primary purpose is to convert the high-density connector of the I/O module into a 40-pin MIL connector interface.

This allows for a “plug-and-play” connection using a KS1 or KS2 cable, leading to a remote terminal board (like the AEA4D or A1BA4D), which simplifies cabinet wiring and maintenance.

2. Technical Parameter Table

Feature	Specification
Model Code	ATK4A-00 S1
Type	KS Cable Interface Adapter (Terminal Block)
Number of Channels	16-Channel (Supports 8-Channel in certain configs)
Interface Port	40-Pin MIL Connector
Signal Compatibility	Analog Input/Output (4-20 mA, 1-5 V)
Compatible Cables	KS1, KS2 Cable
Insulation Resistance	10 MΩ or greater (at 500 V DC)
Withstanding Voltage	500 V AC for 1 minute (between channels)
Weight	Approx. 0.06 kg to 0.1 kg
Environmental Protection	S1 Suffix: Conforms to ISA Standard G3 (Conformal Coating)
Operating Temperature	-20°C to +70°C

3. Product Advantages and Features

Simplified Wiring: Replaces tedious point-to-point terminal wiring with a single multi-core KS cable connection, significantly reducing installation time.

Redundancy Support: Can be used in dual-redundant I/O configurations when paired with the appropriate backplane and terminal boards.

Maintenance Friendly: Allows for the replacement of I/O modules without disconnecting individual field wires; simply unplug the KS cable.

Harsh Environment Ready: The S1 designation confirms it is treated with a conformal coating, making it resistant to corrosive gases ($H_2S$, $SO_2$) found in industrial sites.

Space Saving: Its slim profile ensures it does not interfere with adjacent modules in a densely packed I/O node.

ATK4A-00 S1

4. Application Cases

Petrochemical & Refining: Used in control cabinets where high-density analog signals (pressure, temperature, flow) are routed from field junction boxes to the DCS.

DCS Modernization: Frequently used when upgrading legacy Yokogawa systems to CENTUM VP, allowing for organized cable management.

Offshore Platforms: Ideal for compact cabinets where quick-disconnect capabilities and G3-level environmental protection are required.

Power Plants: Connecting signal conditioners and transmitters to the main Field Control Station (FCS).

BENDER	RCMA475LY
Bender	RCMA475-23
BENNING	9061486921
BENTLEY	3500/20
Bentley	3500/61
BENTLEY	9200-06-02-10-00
BENTLY	3300/16-14-01-03-00-00-01
BENTLY	3500/20
BENTLY	125840-02
BENTLY	1X35668
BENTLY	330130-045-00-00
BENTLY	330980-51-00
BENTLY	22810-01-05-50-02
BENTLY	10244-27-50-01
BENTLY	330103-00-04-10-02-00
BENTLY	135462-01
BENTLY	132419-01

5. Related Models & Same Series

The ATK4A is part of the FIO signal connection ecosystem.

Other Models in the Same Series

ATA4S / ATA4D: Pressure clamp terminal blocks for single/dual-redundant analog signals (direct terminal connection).

ATB5S / ATB5D: Pressure clamp terminal blocks for digital signals.

ATD5A: A KS cable interface adapter specifically for Digital I/O modules (32-channel).

ATM4A: A specialized adapter for pulse input or specific voltage modules.

Compatible I/O Modules

AAI141 / AAI143: 16-channel Analog Input Modules.

AAI543: 16-channel Analog Output Module.

AAI135: 8-channel Isolated Analog Input Module.

AAB841: Analog I/O Module (8-in/8-out).

ATK4A-00 S1

The Yokogawa AVR10D-A22010 is a Duplexed V net Router (Bus Converter) used in the CENTUM VP Distributed Control System (DCS).

Its primary role is to bridge the gap between different network architectures, specifically connecting modern Vnet/IP domains to legacy V net or VL net domains.

1. Introduction

The AVR10D-A22010 acts as a “translator” and traffic manager between two generations of Yokogawa control networks.

It allows the latest Human Interface Stations (HIS) and Engineering Stations (ENG) residing on a high-speed Vnet/IP (Ethernet-based) network to monitor and control Field Control Stations (FCS) located on an older V net (Coaxial-based) or VL net network.

The “Duplexed” designation means it features redundant communication modules and power supplies for continuous operation.

2. Technical Parameter Table (A22010 Suffix)

Feature	Specification
Model	AVR10D-A22010
Communication (Vnet/IP Side)	100 Mbps (Full Duplex) via RJ45 (CAT5e or higher)
Communication (V net Side)	10 Mbps via Coaxial (BNC)
Suffix Code Breakdown	-A2: Dual-redundant VL net / 2: Dual Power Supply / 0: Fixed / 1: 100-120V AC Power / 0: Basic type
Input Power	100 to 120 V AC (50/60 Hz)
Power Consumption	80 VA
Max Distance (Vnet/IP)	100 meters (to Layer 2 Switch)
Mounting	19-inch Rack Mountable (Standard)
Weight	Approximately 2.5 kg (depending on configuration)

3. Product Advantages and Features

Seamless Integration: Allows users to upgrade their operator consoles to CENTUM VP without having to replace their existing, functioning field controllers on the older V net.

Full Redundancy: Equipped with duplexed communication modules and duplexed power supplies. It supports “hot-swapping,” meaning a module can be replaced while the router is online.

Deterministic Bridging: Ensures that the high-speed Vnet/IP data is properly synchronized with the 10 Mbps V net timing to maintain control integrity.

Diagnostic Transparency: Status and health information for both sides of the network are visible directly on the DCS monitoring screens.

Environmental Durability: Typically includes conformal coating (ISA G3) to withstand corrosive industrial gases.

AVR10D-A22010

4. Application Cases

Plant Modernization (Migration): A factory running an older CENTUM CS 3000 system wants to upgrade to CENTUM VP but wants to keep its existing wiring and controllers in place.

Multi-Domain Connectivity: Large facilities that have multiple “islands” of automation—some on modern Ethernet and some on legacy coaxial—need a central point to unify the data.

Geographical Expansion: Linking a newer plant extension (Vnet/IP) to an existing central control room that still uses the original V net backbone.

AVR10D-A22010

5. Related Models & Same Series

The AVR10D series varies primarily by its network interface and power requirements.

Other Models in the Same Series

AVR10D-Q22010: The version specifically for Dual-Redundant V net (10BASE-2 coaxial) instead of VL net.

AVR10D-A22020: The 220-240V AC version of the A22010.

AVR10D-A22040: The 24V DC power version, used in sites with battery backup systems.

Related System Components

VI451: Vnet/IP interface module for the controller side.

VC401: Vnet/IP interface card for the PC/HIS side.

YCB141: The specialized V net coaxial cable (10BASE-2) used to connect to the router.

BALDOR	803.93.00C
BALDOR	FD2A02TR-RN20
BALZERS	IKR020
BASEUS	CHBX01L
BASLER	SCA640-120GM
BASLER	A404KM-RT
Basler	DECS-200-2L
Basler	DECS-200-2L
BASLER ELECTRIC	BE3-25A
BAUMER	FHDK   14P5101/S35A
BAUMER	OADM   20I6572/S14F
BAUMER	UNDK30P3712/S14
BAUMULLER	BUR622-16-2

The Yokogawa PW441-10 is a highly reliable Power Supply Module specifically designed for the CENTUM VP and CENTUM CS 3000 Field Control Stations (FCS). It is the primary energy source for the AFV30 and AFV40 Field Control Units, converting standard AC utility power into the stable DC voltages required by the controller’s internal processors and communication modules.

1. Introduction

The PW441-10 is a “system-side” power supply. In a typical Yokogawa DCS setup, these modules are installed in pairs to provide redundant power. If one module fails or its power source is interrupted, the other module takes over the full load instantly without causing a system reset. The “-10” suffix denotes the standard style code for the 100-120V AC input version.

2. Technical Parameter Table

Feature	Specification
Model	PW441-10 (100-120 V AC version)
Input Voltage	AC 100 to 120 V
Input Voltage Range	AC 80 to 132 V
Frequency	50/60 Hz (±3 Hz)
Output Capacities	5.1 V DC (Internal Logic), 24 V DC (Internal I/O)
Redundancy	Supported (When two modules are installed)
Max Power Consumption	220 VA
Withstand Voltage	1500 V AC between input and output/ground
Mounting	Dedicated slots in AFV30/AFV40 Control Units
Weight	Approx. 1.0 kg

3. Product Advantages and Features

Built-in Redundancy Management: Seamlessly integrates with a second PW441 to ensure 24/7 uptime for critical controllers.

AC Fail Detection: Includes a sophisticated detection circuit that notifies the CPU of an impending power loss, allowing the system to execute “Power Fail” processing to protect memory.

Hot-Swappable: A faulty power module can be replaced while the controller is running, provided the redundant partner is healthy.

G3 Conformal Coating: Standard protection against harsh industrial atmospheres containing corrosive gases like $H_2S$ and $SO_2$.

Robust Thermal Design: Specifically engineered to dissipate heat effectively within the compact confines of an FCS cabinet.

4. Application Cases

Continuous Process Industries: Used in oil refineries and chemical plants where a power failure could lead to dangerous pressure buildups or massive production losses.

Safety Instrumented Systems (SIS): Providing the stable power base for logic solvers in emergency shutdown scenarios.

Power Plant Control: Managing the critical control loops for turbines and boilers where electrical stability is paramount.

Remote Instrumentation Sheds: Operating in unmanned stations where high-reliability hardware is required due to infrequent maintenance access.

5. Related Models & Same Series

The PW44x series is categorized based on the input voltage requirements of the plant.

Other Models in the Same Series

PW442-10: The 220-240 V AC version of the power supply (used in European and Asian markets).

PW444-10: The 24 V DC input version, often used in sites powered by battery banks or solar arrays.

PW481 / PW482: Power supply modules for different node types or specific legacy backplanes.

Related System Components

AFV30D / AFV40D: The Field Control Units that house the PW441 modules.

VI451: The Vnet/IP communication module that receives its power from the PW441.

PW441-S1: A special style code version for specific environmental or regional certifications.

BAILEY	IMMFP01
BAILEY	IMMFP03
BAILEY	IMMPI01
BAILEY	IMSPM01
BAILEY	INICT01
BAILEY	INICT03A
BAILEY	IPFLD24
BAILEY	IPSYS01
BAILEY	IMCIS02
BAILEY	IMDSI02
BAILEY	6637517A1

The Yokogawa VI451-10 is a Vnet/IP Interface Module specifically designed for the Field Control Stations (FCS) of the CENTUM VP Distributed Control System.

While the previously discussed VC401 is for PC-based stations, the VI451 is the hardware component that resides in the controller’s rack (such as the AFV30 or AFV40) to provide it with dual-redundant 1Gbps network connectivity.

1. Introduction

The VI451-10 serves as the primary communication gateway for the AFV series Field Control Stations.

It translates the internal bus signals of the controller into Vnet/IP packets, allowing the controller to communicate with Human Interface Stations (HIS), other controllers, and plant networks. The “-10” style code signifies the standard Ethernet/RJ45 interface version, optimized for high-speed, deterministic control.

2. Technical Parameter Table

Feature	Specification
Model	VI451-10 (Standard Style)
Compatibility	AFV30S, AFV30D, AFV40S, AFV40D Control Units
Network Interface	Vnet/IP (1 Gbps Ethernet)
Connection Ports	2 x RJ45 ports (Redundant Line 1 & Line 2)
Transmission Media	Category 5e (CAT5e) or higher UTP cable
Max. Distance	100 meters between module and switch
Current Consumption	0.8 A (within the FCS backplane)
Weight	Approx. 0.28 kg
Operating Environment	ISA G3 Conformal Coating (Standard on most units)

3. Product Advantages and Features

True Redundancy: Specifically built to support the dual-redundant architecture of CENTUM VP. It manages two separate network paths simultaneously, ensuring zero data loss during a network failover.

Deterministic Communication: Unlike standard Ethernet, the VI451 uses Yokogawa’s Vnet/IP protocol to ensure control data is delivered within a fixed time window, regardless of background network traffic.

Integrated Diagnostics: The module continuously monitors the health of both network lines and reports physical layer errors (like cable degradation) to the operator before a total failure occurs.

High Throughput: 1 Gbps capacity allows for the transmission of massive amounts of process data, which is essential for modern plants with thousands of I/O points.

Hardware Hardening: Designed for installation directly in industrial cabinets, featuring high vibration resistance and thermal management.

4. Application Cases

Large-Scale Refineries: Providing the communication backbone for Field Control Stations managing thousands of PID loops.

Inter-Controller Data Exchange: Enabling high-speed “peer-to-peer” communication between two different controllers (FCS to FCS) for complex safety or interlocking logic.

DCS Modernization: Used when upgrading older CENTUM systems to CENTUM VP to transition from legacy V net (coaxial) to modern Vnet/IP (Ethernet) infrastructures.

Offshore Operations: Utilized in remote control modules where reliable, redundant communication over fiber (via media converters) is required for safety.

B&R	5PP120.1214-37A
B&R	5AC600.FLAP-K11
B&R	5AC600.GPI0-K05
B&R	7EX470.50-1
B&R	5PC910SX02-00   REV:K6
B&R	8LSA46.R0045D000-0
B&R	8MSA5X.RO-X400-1
B&W	SQ-300I 8700700-006C
B+W	465010
BACHMANN	AI204/SI
BACHMANN	AO202/SI
BACHMANN	BS203
BACHMANN	MP226/EW
BACHMANN	SFS236C
BACHMANN	ME203/CN
BAILEY	IIMCP01

5. Related Models & Same Series

The VI451 is the “Controller-side” equivalent of the VC401 “PC-side” card.

Other Models in the Same Series

VI451-11: A variant typically featuring different style codes or minor hardware revisions for newer backplane versions.

VF702: The legacy V net interface module for older coaxial-based control networks.

VI461: A Vnet/IP interface module used in different rack configurations or specialized bridge units.

Related System Components

AFV30D / AFV40D: The Duplexed Field Control Units where the VI451 is typically installed in pairs.

VC401: The PCI Express card for the HIS (Human Interface Station) that “talks” to the VI451.

AVR10D: The Duplexed Vnet/IP redundant router used to connect different Vnet/IP domains.

The Yokogawa VC401-10 is a high-performance Vnet/IP Interface Card designed for use in the CENTUM VP Distributed Control System (DCS).

It is a specialized PCIe (PCI Express) card installed in Human Interface Stations (HIS) or Engineering Stations (ENG) to allow them to communicate over the high-speed Vnet/IP control network.

1. Introduction

The VC401-10 acts as the communication gateway for a PC to access the Yokogawa control network.

Unlike a standard commercial Ethernet card, the VC401 is engineered for the rigors of industrial automation.

It ensures that critical control data and alarms reach the operator stations with high priority and deterministic timing, even in high-traffic environments.

The “-10” suffix typically denotes the specific revision or style code compatible with modern workstation hardware.

2. Technical Parameter Table

Feature	Specification
Model Code	VC401-10
Interface Type	PCI Express (x1)
Communication Speed	1 Gbps (Full Duplex)
Network Protocol	Vnet/IP (Yokogawa proprietary over UDP/IP)
Connection Port	2 x RJ45 ports (Supports Dual Redundancy)
Max. Cable Length	100 meters (using Cat5e or higher)
Operating System	Windows 10 / Windows Server (Specific to CENTUM VP version)
Current Consumption	Max 1.5 A at 3.3V DC
Operating Temp	5 to 50°C
Weight	Approx. 0.15 kg

3. Product Advantages and Features

Dual Redundancy: Features two independent RJ45 ports. If one network cable or switch fails, the card switches to the secondary path instantaneously without data loss.

Determinism: Optimized for the Vnet/IP protocol, ensuring that real-time process data is prioritized over general-purpose IT traffic.

Low CPU Load: The card handles the heavy lifting of network protocol processing, freeing up the PC’s main processor for operator graphics and database tasks.

Simplified Setup: Designed for “plug-and-play” integration with Yokogawa’s IT Security toolset and network builders.

High Bandwidth: The 1 Gbps speed allows for rapid screen updates and fast historical data retrieval, even in massive plant architectures.

4. Application Cases

Central Control Rooms: Installed in operator consoles to provide a real-time view of plant-wide operations.

Engineering Stations: Used by engineers to download new control logic or configurations to Field Control Stations (FCS) via the network.

Plant Historians: Providing the data link for Exaquantum or other high-level data logging software to pull real-time process variables.

System Integration: Connecting Third-Party subsystems (via a PC-based gateway) to the primary CENTUM VP control bus.

B&R	7DO138.70
B&R	7DI140.70
B&R	7DO135.70
B&R	7AI261.7
B&R	5AP920.1505-01
B&R	8AC120.60-1
B&R	8AC110.60-2
B&R	5AP933.215C-00
B&R	LP070U-MF1-5-1D1-3S
B&R	5DLSD3.1000-00
B&R	2005PLC
B&R	2AO300.6
B&R	3IF661.9
B&R	5AP1130.156C-000

5. Related Models & Same Series

The VC401-10 is part of the evolution of Yokogawa’s bus interface cards.

Other Models in the Same Series

VF702: The predecessor model used for the older V net (not IP-based) coax or fiber systems.

VI702: A related interface card for different PCI bus architectures (legacy).

VC401-11: A newer revision or variant often released to maintain compatibility with updated PC motherboard chipsets.

Related Network Components

Layer 2 / Layer 3 Switches: Specifically approved industrial switches (like those from Cisco or Hirschmann) used to build the Vnet/IP fabric.

AFV30 / AFV40: Field Control Stations that communicate directly with the VC401 via the Vnet/IP network.

VI401: The Vnet/IP Interface Unit used on the controller side rather than the PC side.

The Yokogawa ALP121 is a high-performance PROFIBUS-DP Communication Module designed for use within the CENTUM VP and CENTUM CS 3000 Distributed Control Systems (DCS).

It acts as a PROFIBUS-DP master, enabling the control system to exchange high-speed data with field devices, PLCs, and remote I/O.

1. Introduction

The ALP121 is an FIO (Field network I/O) module that integrates third-party PROFIBUS devices into Yokogawa’s unified control environment.

It is typically mounted on Field Control Units (FCU) or node units. By using a DP/PA coupler,

it can also communicate with PROFIBUS-PA field instruments, providing a bridge between advanced digital fieldbus diagnostics and the central DCS.

2. Technical Parameter Table

Feature	Specification
Interface	PROFIBUS-DP (Master)
Physical Layer	EIA-RS-485 compliant
Transmission Speed	9600 bps to 12 Mbps (Auto-detect)
Max. Distance	1.2 km (at 9600 bps) to 100 m (at 12 Mbps) per segment
Port Type	1 x D-sub 9-pin (female)
Signal Isolation	Isolated between field and system
Max. Current Consumption	0.7 A (at 5V DC)
Weight	Approx. 0.3 kg
Communication Capacity	Max. 125 slave devices per port
Mounting	Mounted on AFV30/AFV40, ANB10, or ANB11 units

3. Product Advantages and Features

Dual Redundancy: Supports dual-redundant configuration. If one ALP121 module fails, the backup module takes over communication instantly without bumping the process.

Plug-and-Play Integration: Seamlessly works with Yokogawa’s Standard Builder Function and a dedicated PROFIBUS-DP Configurator.

G3 Environmental Protection: Often available with a “S1” or “S01” suffix, providing a conformal coating for protection against corrosive gases (ISA Standard G3).

Diagnostic Capabilities: Provides detailed status LEDs (RUN, ERR, ACT) and transmits device-level diagnostic alerts back to the Asset Management System (PRM).

Broad Connectivity: Compatible with a vast range of slave devices, including Siemens ET200 series, various frequency inverters, and motor protection relays.

ALP121

ALP121

4. Application Cases

Chemical & Refining: Integrating motor control centers (MCCs) and heavy-duty valves that use PROFIBUS for status and control.

Water Treatment: Connecting dispersed remote I/O stations across a facility to a central Field Control Station.

Power Generation: Managing complex auxiliary equipment like coal handling or soot-blowing systems that utilize PLCs with PROFIBUS interfaces.

Pharmaceuticals: Interfacing with specialized skid-based equipment (e.g., centrifuges or dryers) that require high-speed data exchange.

5. Related Models & Same Series

The ALP121 belongs to the communication-specific branch of the FIO family.

Other Models in the Same Series

ALP111: The legacy or alternative PROFIBUS-DP communication module for specific FIO configurations.

ALR111 / ALR121: Serial communication modules supporting RS-232C and RS-422/RS-485 (Modbus RTU).

ALE111: Ethernet communication module for Modbus TCP/IP or general Ethernet links.

ALF111: FOUNDATION Fieldbus™ (H1) communication module for digital field instruments.

B&R	ECPNC3-1   11150168481
B&R	ECPP40-01
B&R	ECPP60-01
B&R	HCMARC-0CT
B&R	HCMCO3MC-1A
B&R	MCGE31-0
B&R	MDA115-0
B&R	X20BM15
B&R	ECR165
B&R	5CFCRD.0064-03
B&R	X20CP1486
B&R	4P3040.00-490
B&R	DO135
B&R	AT664
B&R	AO352
B&R	7AO352.70