What Does a Managed SCADA Service Actually Include?

Quick Answer

A managed SCADA service provides proactive monitoring, scheduled maintenance, and expert support under a predictable monthly retainer — distinct from break-fix consulting or staff augmentation. Core deliverables include 24/7 alarm monitoring, server patching, backup verification, alarm management, performance reporting, and defined SLAs for response and resolution.

Defining the Service Models

The term "managed SCADA" is used loosely in the market, so it helps to distinguish between the three common engagement models:

Break-Fix (Reactive)

You call when something breaks. The provider dispatches an engineer, diagnoses the problem, and bills by the hour. There is no ongoing relationship, no proactive monitoring, and no maintenance schedule. Response times depend on availability. This model is appropriate for organizations with strong internal SCADA teams that occasionally need specialized expertise — but it provides no protection against preventable failures.

Staff Augmentation

The provider embeds an engineer (on-site or remote) who works as part of your team, usually on a time-and-materials or monthly contract. This adds capacity but doesn't add a system — the embedded engineer works within whatever processes and tools your organization already has. If your processes are ad hoc, staff augmentation adds a person to an ad hoc system.

Managed Service (Proactive)

The provider takes responsibility for defined outcomes — system availability, alarm performance, patch compliance, backup integrity — under an SLA. The provider brings their own monitoring tools, maintenance procedures, and escalation workflows. You receive monthly reports demonstrating performance against agreed metrics. This model transforms SCADA operations from an unpredictable cost center into a predictable, measurable capability.

Core Service Tiers

Tier 1: Monitoring

The foundation of any managed SCADA service is continuous platform monitoring. For Geo SCADA environments, this includes:

• Server process health (ClearSCADA Server service, SQL Server, Windows services)
• Communication driver status across all channels (cellular, radio, serial, TCP/IP)
• Disk utilization, CPU, and memory trending
• Database size and transaction log growth
• Mirror server synchronization status (for redundant deployments)
• Certificate expiration monitoring

Monitoring generates alerts when metrics exceed thresholds. These alerts flow to the managed service NOC for evaluation, triage, and escalation — not to your operators, who should only receive notifications about events that require their action.

Tier 2: Maintenance

Scheduled maintenance tasks prevent the gradual degradation that leads to unplanned outages:

• Monthly: Windows security patches, SQL Server index maintenance, backup verification, alarm performance review
• Quarterly: Geo SCADA application updates, database compaction, performance baseline comparison, disaster recovery procedure review
• Annual: Full system health assessment, capacity planning, license and certificate renewal coordination, alarm rationalization review

Tier 3: Optimization

Beyond keeping the system running, optimization improves its performance and value over time. This includes alarm rationalization, report development, communication architecture optimization, historian retention tuning, and integration with enterprise systems (CMMS, ERP, GIS). Optimization deliverables are typically defined in an annual roadmap agreed with the client.

SLA Structures and KPIs

A well-structured managed SCADA SLA defines measurable commitments across several dimensions:

• Response time: Time from alert detection to initial assessment. Typical targets: 15 minutes for critical, 1 hour for high, 4 hours for medium, next business day for low.
• Resolution time: Time from initial assessment to issue resolution. Targets vary by issue type but are defined for common scenarios.
• System availability: Percentage uptime of the SCADA platform (exclusive of planned maintenance windows). Typical target: 99.5% or higher.
• Alarm performance: Average alarms per operator per hour maintained below ISA-18.2 thresholds.
• Patch compliance: Percentage of applicable patches applied within defined windows (e.g., critical patches within 30 days).
• Backup success rate: Percentage of scheduled backups completed successfully with verified integrity.

Monthly service reports document performance against each KPI, providing transparency and accountability that ad hoc support models cannot match.

How NFM Delivers Managed Geo SCADA Services

NFM Consulting's managed Geo SCADA service is built specifically for Schneider Electric Geo SCADA (ClearSCADA) environments. Our team has deep platform expertise spanning DNP3 and Modbus protocol configuration, SQL Server database administration, Windows Server management, and Geo SCADA-specific tools including ViewX, WebX, and the built-in scripting engine.

Our managed service model includes all three tiers — monitoring, maintenance, and optimization — with SLAs tailored to each client's operational requirements. We operate a SCADA-focused NOC staffed by engineers who understand process alarms, not just IT alerts, ensuring that escalations to your on-call staff are relevant, contextualized, and actionable.

If you're evaluating managed SCADA options and want to understand what a tailored engagement would look like for your environment, request a managed SCADA services proposal from NFM Consulting.