Phoenix Contact QUINT-PS/1AC/24DC/10/CO Industrial Power Supply

Phoenix Contact QUINT-PS/1AC/24DC/10/CO: Reliable Industrial Power for Smart Factory Data Links

In modern industrial automation environments, stable and uninterrupted power delivery is the foundation of every data link. The Phoenix Contact QUINT-PS/1AC/24DC/10/CO (Part No. 2320911) is a high-performance 24VDC DIN-rail power supply engineered to sustain continuous operation across demanding smart factory architectures. With a rated output of 24V DC / 10A, this unit provides the clean, regulated power that field devices, communication modules, and network infrastructure components require to maintain real-time data integrity from the sensor layer to the SCADA level.

Industrial networks depend on consistent voltage rails. When a Siemens S7-1500 PLC or an Allen-Bradley ControlLogix controller is coordinating high-speed data exchange with remote I/O stations over PROFINET or EtherNet/IP, any power fluctuation at the cabinet level can introduce latency, trigger false alarms, or cause communication dropouts. The QUINT-PS/1AC/24DC/10/CO addresses this risk with its active power boost capability — delivering up to 125% of rated current for 5 seconds to reliably start capacitive or inductive loads without tripping upstream protection devices.

Compatibility & Integration Notes

Connected Automation Data Flow

The QUINT-PS/1AC/24DC/10/CO sits at the heart of the cabinet power architecture, supplying regulated 24VDC to every node in the automation data chain. Consider a typical smart factory cell: a Siemens S7-1500 CPU 1515-2 PN acts as the PROFINET controller, communicating with distributed ET 200SP remote I/O stations mounted at machine level. Each ET 200SP rack — housing digital input modules for proximity sensors and analog input modules for pressure transmitters — depends on a stable 24V supply to maintain sub-millisecond cycle times and accurate signal reporting.

Upstream from the PLC, a Phoenix Contact FL SWITCH 2008 managed industrial Ethernet switch aggregates PROFINET traffic from multiple controllers and forwards it to the plant SCADA server running Wonderware System Platform or Ignition by Inductive Automation. The switch itself, along with its SFP fiber uplink modules, is powered from the same QUINT rail, ensuring that network topology changes or fiber link events are logged without power-related interruptions.

For protocol bridging between legacy Modbus RTU field instruments — such as Endress+Hauser Promag flow meters or Yokogawa EJA pressure transmitters — and the PROFINET backbone, a Moxa MGate MB3170 Modbus-to-PROFINET gateway is deployed. This gateway requires a clean 24VDC input; any ripple or sag from an undersized power supply can corrupt register reads and introduce data latency into the SCADA historian. The QUINT’s active filtering and SFB (Static Boost) technology eliminates this risk.

At the HMI layer, a Siemens SIMATIC TP1200 Comfort Panel displays real-time process values, alarm states, and trend data pulled from the S7-1500 via S7 communication. The panel’s 24VDC input is fed directly from the QUINT rail, and the built-in CO relay contact of the QUINT-PS/1AC/24DC/10/CO is wired to a digital input on the PLC — enabling automatic alarm generation in the SCADA system if output voltage drops below threshold, supporting proactive remote diagnostics without requiring a site visit.

For edge computing and IIoT connectivity, a Moxa UC-8112 edge gateway aggregates OPC-UA data from the PLC and forwards it to cloud analytics platforms. This edge node, along with its cellular or fiber WAN interface, is powered from the QUINT rail, completing a fully monitored power-to-cloud data path. Every component in this chain — from the proximity sensor at machine level to the cloud dashboard — relies on the QUINT-PS/1AC/24DC/10/CO as its power foundation.

Solving Data Isolation in Industrial Sites

One of the most persistent challenges in brownfield industrial sites is data isolation: legacy equipment running proprietary protocols, islands of automation that cannot share process data, and control cabinets where power quality issues mask themselves as communication faults. The Phoenix Contact QUINT-PS/1AC/24DC/10/CO directly addresses several of these root causes.

First, by providing a stable, noise-free 24VDC rail, it eliminates the power-related causes of intermittent communication failures that are often misdiagnosed as protocol incompatibility or network configuration errors. When Modbus RTU gateways, PROFIBUS DP repeaters, or EtherNet/IP adapter modules experience random restarts or CRC errors, the first diagnostic step is always to verify power supply quality — and the QUINT’s regulated output with active boost removes this variable entirely.

Second, the integrated CO (changeover) relay contact enables the power supply itself to become a data source within the automation network. By wiring the relay to a PLC digital input, engineers can monitor PSU health in real time through the SCADA system, set alarm thresholds, and trigger maintenance workflows before a power failure causes unplanned downtime. This transforms a passive infrastructure component into an active participant in the plant’s condition monitoring strategy.

Third, the QUINT’s wide input voltage range (85–264V AC) and ATEX Zone 2 certification make it suitable for deployment in geographically distributed substations, offshore platforms, and hazardous area control rooms — environments where data isolation is often caused by the inability to standardize hardware across sites. A single QUINT SKU can be stocked globally and deployed across multiple plant locations, simplifying spare parts management and reducing the risk of extended downtime due to sourcing delays.

For system expansion, the QUINT-PS/1AC/24DC/10/CO supports parallel redundancy configurations using the Phoenix Contact QUINT-ORING/24DC/2X10/1X20 diode module, enabling N+1 power architectures for critical communication infrastructure without requiring a complete cabinet redesign. This scalability is essential for factories undergoing phased digital transformation, where new PROFINET segments, additional remote I/O drops, or expanded HMI networks are added incrementally.

Industrial Connectivity FAQ

Q1: Does the QUINT-PS/1AC/24DC/10/CO introduce any communication latency in PROFINET or EtherNet/IP networks?
A: No. The QUINT power supply is a passive power source for network devices and does not participate in data transmission. Its role is to provide stable 24VDC to switches, gateways, and controllers. The active boost and filtering technology ensures that voltage transients — which can cause NIC resets and introduce latency — are suppressed, supporting deterministic cycle times in PROFINET RT and IRT applications.

Q2: Is the 2320911 compatible with both PROFINET and Modbus TCP environments?
A: Yes. The QUINT-PS/1AC/24DC/10/CO powers any 24VDC device regardless of the communication protocol it uses. It is equally suitable for powering PROFINET controllers, Modbus TCP gateways, EtherNet/IP adapters, and OPC-UA edge devices. Protocol compatibility is determined by the powered device, not the power supply.

Q3: How does the CO relay contact support remote diagnostics and SCADA integration?
A: The changeover (CO) relay contact closes when output voltage is within specification and opens on fault. By connecting this relay to a PLC digital input, the power supply status is visible in real time on the SCADA/HMI system. Alarm logic can be configured to notify maintenance teams via email or SMS if the PSU enters a fault state, enabling remote diagnostics without requiring a physical site inspection.

Q4: What does the warranty terms confirmed during quotation cover, and has the unit been tested before shipment?
A: Every QUINT-PS/1AC/24DC/10/CO (2320911) supplied by ZYPLC undergoes pre-shipment functional testing, including output voltage verification, load regulation testing, and relay contact continuity checks. The warranty terms confirmed during quotation covers manufacturing defects and functional failures under normal operating conditions. ZYPLC maintains availability subject to RFQ confirmation of this SKU and can support urgent RFQ requirements with export shipping options available.