Brand: Yokogawa

Yokogawa ADV161-P50 64-Channel Digital Input Module for CENTUM VP/CS

Name: Yokogawa ADV161-P50 Digital Input Module – Datasheet & Quote
Brand: Yokogawa

Description

Overview

The Yokogawa ADV161-P50 digital input module is a 64-channel isolated unit built for Yokogawa’s CENTUM VP and CENTUM CS distributed control system I/O architecture. This module acquires 24 V DC ON/OFF signals from field devices such as limit switches, pushbuttons, dry-contact relays, and status indicators, converting them into digital status data for the CENTUM system’s control and monitoring logic. Seven Star LLC supplies the Yokogawa ADV161-P50 to refineries, petrochemical plants, and process facilities across Oman and the GCC operating CENTUM-based distributed control systems that need reliable, high-density digital status acquisition.

Distributed control systems depend on accurate, high-integrity field status data to make safe and correct control decisions, and a DCS with hundreds or thousands of discrete field devices needs I/O modules that combine high channel density with strong electrical isolation to prevent a single field wiring fault from propagating into the control system. The ADV161-P50’s 64-channel design and dual-redundant capability address exactly this requirement, letting plants consolidate large numbers of digital status points into a compact I/O footprint without compromising the isolation and reliability the DCS architecture depends on.

Operating Principle

The ADV161-P50 continuously scans its 64 isolated input channels for 24 V DC sink/source signal states from connected field devices, converting each channel’s ON/OFF condition into digital data that is transmitted to the CENTUM VP or CS field control station over the system’s internal I/O bus. High electrical isolation between channels and between the field wiring and the internal control bus protects the DCS from field-side electrical faults, transients, or ground potential differences, while the module’s -P50 suffix configuration adds pushbutton input support for interfacing directly with operator pushbutton stations without additional interposing hardware. The module supports dual-redundant configuration, allowing two ADV161 modules to be paired so that a single module failure does not interrupt digital input acquisition for the connected field devices.

Engineering Design

Built to Yokogawa’s CENTUM VP/CS I/O module specification, the ADV161-P50 integrates directly into the standard CENTUM node/nest architecture, sharing the mounting, power distribution, and communication bus of the wider I/O system. Field wiring is typically terminated through relay boards such as the ARM15A together with signal cabling like the AKB337, keeping high-density field termination organized and serviceable at the DCS cabinet. The module’s -P50 suffix configuration is one of several variants in the ADV151/ADV161 family, distinguished by channel count (32 vs. 64), pushbutton input support, and explosion-protection classification, so correct variant selection matters when specifying a replacement or expansion module for an existing CENTUM system.

Key Features

As a core digital input building block for Yokogawa’s CENTUM VP/CS platform, the ADV161-P50 combines high channel density with the isolation and redundancy features large-scale process plants require from their DCS I/O layer.

64 isolated digital input channels for 24 V DC sink/source field signals
Pushbutton input support via the -P50 suffix configuration
Dual-redundant configuration capability for high-availability digital input acquisition
High electrical isolation between field wiring and internal control bus
Direct integration with Yokogawa CENTUM VP and CENTUM CS node/nest I/O architecture
Compatible with standard ARM15A relay boards and AKB337 signal cabling for field termination

Applications

The Yokogawa ADV161-P50 is used for digital status acquisition in refinery process units, petrochemical plants, gas processing facilities, and other large-scale industrial sites running CENTUM VP or CENTUM CS distributed control systems, covering field inputs such as valve limit switches, motor status contacts, operator pushbutton stations, level and pressure switch contacts, and safety interlock status signals feeding into plant-wide process control and monitoring logic.

Technical Specifications

Manufacturer	Yokogawa Electric Corporation
Part Number	ADV161-P50
Module Type	Digital Input Module, 64-channel
Input Signal	24 V DC sink/source, isolated
Suffix Configuration	-P50: with pushbutton input, no status display, basic explosion protection classification
Redundancy	Dual-redundant configuration supported
Compatible System	Yokogawa CENTUM VP / CENTUM CS
Related Field Termination	ARM15A relay board, AKB337 signal cable
Maximum Current Consumption	Approx. 500 mA (5 V rail, per manufacturer general specification)

Why Choose Seven Star LLC

Seven Star LLC is an experienced supplier of Yokogawa CENTUM DCS I/O modules across Oman and the GCC, helping refineries and process plants specify the correct ADV161 variant and supporting field termination hardware for their control system expansion or replacement needs. Our team supports configuration guidance and fast regional delivery to minimize control system I/O downtime during planned maintenance or capacity expansion.

Plants planning a CENTUM I/O expansion or replacing an aging ADV161-P50 module as part of a DCS lifecycle refresh should also confirm rack slot compatibility and firmware revision alignment with their existing field control station, since Yokogawa periodically updates internal module revisions while preserving external form, fit, and function. Seven Star LLC can source both new and factory-refurbished ADV161-P50 units depending on project budget and lead-time requirements, helping plants across Oman and the GCC keep critical digital input capacity available for planned outages, capacity expansions, and emergency module replacement scenarios alike.

Get a Quote

Contact Seven Star LLC for pricing, lead time, and availability on the Yokogawa ADV161-P50 digital input module, or to confirm the correct variant and configuration for your CENTUM VP or CENTUM CS system.

Selecting the Correct ADV161 Variant

Because the ADV151 and ADV161 families are offered in several suffix configurations differing by channel count, pushbutton input support, status display presence, and explosion-protection classification, plants replacing or expanding an existing CENTUM digital input node should confirm the exact suffix code against their DCS configuration documentation before ordering. Specifying the wrong variant, such as a 32-channel ADV151 in place of the 64-channel ADV161, or a module without pushbutton input support where the existing field wiring expects it, can require additional field rewiring or configuration changes at the DCS engineering station. Seven Star LLC’s team can help confirm the correct ADV161-P50 configuration against your system’s existing I/O assignment before shipping, reducing the risk of a mismatched replacement during a planned outage window.

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About brand

Yokogawa is the Japanese measurement and industrial automation company behind the DPharp EJA and EJX pressure transmitters, CENTUM distributed control systems and ProSafe-RS safety systems. Tamisuke Yokogawa set it up in 1915 as an electric meter research institute in Shibuya, Tokyo. It began selling electric meters in 1917, was incorporated as Yokogawa Electric Works in 1920, and has been Yokogawa Electric Corporation since 1986. In 1975 it released CENTUM, which it describes as the world's first distributed control system.

Seven Star LLC is an independent supplier in Muscat. We list Yokogawa transmitters, flowmeters, analysers, controllers, recorders and CENTUM and ProSafe spare modules, and supply them to oil and gas, power, water and process plants in Oman and the GCC by model code.

Yokogawa at a glance

Established	1915, Shibuya, Tokyo, by Tamisuke Yokogawa with Ichiro Yokogawa and Shin Aoki
Milestones	Electric meters from 1917; incorporated in 1920; CENTUM DCS in 1975; renamed Yokogawa Electric Corporation in 1986
Headquarters	Tokyo, Japan
Product families	Pressure and temperature transmitters, magnetic, vortex and Coriolis flowmeters, liquid and gas analysers, controllers and recorders, CENTUM VP DCS, ProSafe-RS safety systems and STARDOM controllers

Yokogawa products we list

Family	Models	Typical use
Pressure and DP transmitters	EJA110E, EJA430E, EJA530E, EJX110A, EJX530A, EJX910A multivariable	Pressure, level and DP flow measurement in process plants
Temperature transmitters	YTA610, YTA710	RTD and thermocouple signals converted to 4-20 mA, HART or fieldbus
Flowmeters	ADMAG AXG, ADMAG AXW, ROTAMASS TI, VY vortex, VF701	Water and conductive liquids, mass flow of hydrocarbons, steam and gas
Analysers	TDLS8000 laser gas analyser, FLXA402, FLXA21 DO, E7042UD zirconia cell, K9471DS cover	Combustion O2, in-situ gas analysis, pH, conductivity and dissolved oxygen
Controllers and recorders	UT35A/UT32A, UT32A-D, UT55A/UT52A, UT75A, UP35A/UP32A, UP55A, YS1700, GX10/GX20, GP10/GP20, GM10, µR20000	Single-loop control, furnace programs and data recording
Control and safety systems	CP451-10 processor, ADV161, ADV551, node interface unit, ProSafe-RS, ProSafe-RS Lite, ProSafe-SLS, FCN-500	Spares and expansions for CENTUM DCS, safety systems and STARDOM
Battery packs	S9129FA, S9185FA, S9548FA	Memory backup batteries for DCS and controller modules

The EJA and EJX transmitters use Yokogawa's DPharp sensor: two silicon resonators whose vibration frequency changes with pressure, so the output is a digital frequency rather than an analogue strain signal. The model code describes the instrument completely. In EJA110E, "110" is a differential pressure transmitter, and the letters after the dash set the span, wetted materials, process connection, electrical output and approvals. When you replace a transmitter, sending the full code from the nameplate avoids a mismatch in range or materials.

Where Yokogawa products are used

In Oman and the GCC, Yokogawa transmitters, analysers and control systems are found in oil and gas production, gas processing and LNG, refineries and petrochemical plants, power and desalination stations, and water treatment. Many plants still run CENTUM CS 3000 and CENTUM VP systems that need spare I/O modules and batteries.

Ordering Yokogawa products: what we need

Send the full model and suffix code from the nameplate (for example EJA110E-JMS5J-912NN/KF22) and the style code. For DCS modules, add the module type and system version. For analysers, send the sensor type, measuring range and process conditions.

Facts checked against Yokogawa's corporate history, October 2026.

Browse Yokogawa products by category: PLC & I/O Cards, Flowmeters, Pressure Instrumentation, Automation Accessories, Temperature Instrumentation.

FAQ

Questions about the Yokogawa ADV161-P50 64-Channel Digital Input Module

Answers from our engineering team on installation, compatibility and integration.

01What does the -P50 suffix mean on the ADV161-P50?

The -P50 suffix configuration indicates pushbutton input support, no status display, and a basic explosion-protection classification, distinguishing it from other suffix variants in the ADV151/ADV161 family.

02How many channels does the ADV161-P50 support?

The ADV161-P50 provides 64 isolated digital input channels for 24 V DC sink/source field signals.

03Which Yokogawa DCS platform is the ADV161-P50 used with?

The ADV161-P50 integrates with Yokogawa's CENTUM VP and CENTUM CS distributed control system I/O architecture.

04Can the ADV161-P50 be configured for redundancy?

Yes. The ADV161-P50 supports dual-redundant configuration, allowing two modules to be paired so a single module failure does not interrupt digital input acquisition.

05What field termination hardware is used with the ADV161-P50?

Field wiring is typically terminated through ARM15A relay boards together with AKB337 signal cabling, keeping high-density field connections organized at the DCS cabinet.