XYCOM XVME-113 Ruggedized Relay Output Module for Harsh Environments

Product Overview

XYCOM XVME-113 Ruggedized Relay Output Module for Harsh Environments

The XYCOM XVME-113 is a 6U VMEbus relay output I/O card engineered for continuous, fault-tolerant operation in the most demanding industrial environments. Designed to meet the rigorous requirements of process automation, discrete manufacturing, and critical infrastructure control, this module delivers deterministic relay switching performance even under conditions of extreme temperature variation, high humidity, mechanical vibration, airborne particulates, and electromagnetic interference (EMI). For facilities where downtime is not an option — oil refineries, gas compression stations, mineral processing plants, power generation substations, water treatment facilities, and heavy metallurgical operations — the XVME-113 provides the relay output density and electrical isolation that mission-critical VMEbus control architectures demand.

Built on XYCOM’s proven XVME platform, the XVME-113 integrates seamlessly into VMEbus backplane systems where it serves as the final-stage output interface between the host CPU board and field-level actuators, solenoids, motor starters, and safety interlock circuits. Its relay contacts provide galvanic isolation between the logic-level control bus and high-voltage field wiring, protecting upstream PLC and DCS processors from transient surges and ground loops that are endemic to industrial field environments. This isolation characteristic is especially critical in applications where the XVME-113 operates alongside variable frequency drives (VFDs), high-current motor control centers, arc furnaces, or large transformer banks — all of which generate significant conducted and radiated EMI.

Rugged Specifications Table

Comprehensive Protection Solutions

The XVME-113 does not operate in isolation — it is one node in a layered control and protection architecture. In a typical VMEbus-based control cabinet, the XVME-113 relay output card works in concert with the XYCOM XVME-010 CPU board, which handles real-time scan cycle execution and ladder logic processing. Digital input signals from field sensors are acquired through companion modules such as the XVME-112 DC input card, while analog process variables — pressure, temperature, flow — are conditioned by XVME-500 series analog I/O modules before being passed to the CPU for closed-loop control decisions.

On the power supply side, the VMEbus backplane is energized by a dedicated industrial DC power supply rated for wide-input-range operation, ensuring the XVME-113 and its sibling boards remain operational through utility voltage sags and brownouts. In safety-instrumented system (SIS) applications, the relay outputs of the XVME-113 are often wired in series with dedicated safety relay modules — such as Pilz PNOZ or Phoenix Contact PSR series safety relays — to form a two-channel, de-energize-to-trip (DTT) shutdown circuit that satisfies SIL 2 functional safety requirements.

Communication between the VMEbus rack and the plant-level SCADA or DCS host is typically handled through a VMEbus communication module supporting PROFIBUS DP, Modbus RTU, or Ethernet/IP protocols, depending on the site’s network architecture. Terminal modules and marshalling panels connected to the XVME-113’s field wiring terminals are protected by surge arrestors and fused terminal blocks, preventing relay contact damage from inductive load switching transients. In high-vibration environments such as compressor skids or offshore platforms, the entire VMEbus rack assembly is mounted in a shock-isolated, NEMA 4X or IP65-rated control enclosure to protect the XVME-113 and associated I/O cards from mechanical stress and ingress of moisture or corrosive gases.

Application in Critical Infrastructure

In upstream oil and gas operations, the XVME-113 relay output module is deployed in wellhead control panels and emergency shutdown (ESD) systems, where its relay contacts directly actuate subsurface safety valves (SSVs) and surface-controlled subsurface safety valves (SCSSVs). The module’s galvanic isolation ensures that high-voltage solenoid valve coils on the process side cannot back-feed transient energy into the VMEbus backplane, protecting the entire control system from damage during valve actuation events.

In coal-fired and gas turbine power generation plants, the XVME-113 is used within turbine control systems to command fuel shutoff valves, cooling water pumps, and generator excitation contactors. Its deterministic relay switching — free from the propagation delays associated with solid-state output modules — is essential for time-critical protection functions where relay response time directly affects turbine trip performance. Similarly, in municipal water treatment facilities, the XVME-113 controls chemical dosing pump starters, UV disinfection system contactors, and high-service pump motor control relays, operating continuously in high-humidity environments where condensation management is a persistent challenge.

Mining and mineral processing operations rely on the XVME-113 in conveyor belt control systems, crusher interlock circuits, and flotation cell agitator motor starters. The module’s robust relay contacts handle the high inrush currents associated with large AC motor starting, and its VMEbus interface allows the host PLC or DCS to implement sophisticated sequencing logic that prevents mechanical damage during startup and shutdown cycles. In steel and aluminum smelting facilities, the XVME-113 operates in the extreme thermal environments adjacent to electric arc furnaces and induction heating systems, where ambient temperatures and EMI levels far exceed those encountered in conventional manufacturing environments.

Security & Quality FAQ

Q1: What warranty coverage is provided with the XYCOM XVME-113?
Every XYCOM XVME-113 supplied by TOPNLMS is covered by a 12-month quality warranty from the date of shipment. If the module exhibits any functional defect attributable to manufacturing or component failure within this period, we will provide a replacement unit or full refund. Our warranty terms are documented and provided with each shipment.

Q2: How is the XVME-113 tested before shipment?
Each unit undergoes a multi-point functional inspection prior to dispatch. Testing includes VMEbus interface continuity verification, relay coil energization and contact closure confirmation, isolation resistance measurement between bus-side and field-side terminals, and visual inspection for physical damage or component anomalies. A test report is available upon request for customers requiring documented quality evidence for their maintenance records.

Q3: Is the XVME-113 compatible with my existing VMEbus backplane and XYCOM CPU boards?
The XVME-113 conforms to the IEEE 1014 VMEbus standard and is compatible with all standard 6U VMEbus backplanes. It is designed to operate alongside other XVME series modules including XYCOM CPU boards, analog I/O cards, and digital input modules. If you are integrating the XVME-113 into a mixed-vendor VMEbus rack or a legacy DCS hybrid architecture, our technical team can advise on slot addressing, interrupt configuration, and driver compatibility before you commit to the purchase.

Q4: Can TOPNLMS support long-term supply and replacement needs for the XVME-113?
Yes. TOPNLMS maintains stock of XYCOM XVME series modules specifically to support customers with legacy VMEbus control systems that are no longer covered by OEM production. We understand that industrial facilities often operate control systems for 15–25 years beyond the original product’s end-of-life date, and we are positioned to provide ongoing spare parts supply, cross-reference assistance, and technical consultation to support your maintenance and reliability programs. Contact us to discuss volume pricing, reserved stock agreements, or scheduled delivery programs tailored to your plant’s maintenance cycle.