OTx Systems — Engineering Reliability & Industrial Excellence

What We Offer

Our Services

Comprehensive Industrial Solutions

Control Systems Design

Expert design of electrical and control systems optimised for your operations and environment.

Electrical design
Control architecture
Safety systems (SIS/SIL)

Automation Solutions

PLC and DCS configuration tailored to your specific industrial processes and requirements.

PLC programming
DCS configuration
Process automation

SCADA & Monitoring

Real-time monitoring and control systems for enhanced operational visibility and response.

SCADA engineering
Real-time dashboards
Alarm management

Data Solutions

Advanced historians and reporting platforms for comprehensive operational data insights.

Data historians
Advanced analytics
Custom reporting

Instrumentation Design

Precision instrumentation solutions for accurate measurement, control, and compliance.

Sensor selection & sizing
Calibration procedures
Loop documentation

Project Management

Structured methodologies ensuring on-time, on-budget delivery with full transparency.

NEC3 ECC framework
Risk management
Quality assurance

Engineering of Electrical Systems & Design

Comprehensive electrical engineering and design services for industrial facilities — from concept through to detailed design and commissioning support.

Power distribution & SLD design
MCC & LV panel design
Cable routing & specification
Load flow & arc flash studies
Protection & earthing design

New

OT Cybersecurity

Structured assessments, passive asset monitoring, and remediation design — aligned to IEC 62443, NIST SP 800-82 and the ISA-95 Purdue model.

IEC 62443 landscape assessment
ABEGuardOT passive monitoring
Octoplant config management
Remediation design & implementation

Explore OT Cybersecurity

OT Cybersecurity & Industrial Defence

Securing the Operations That Keep Industry Running

From initial landscape assessment through passive asset monitoring to full remediation — a structured, non-disruptive path to defensible OT security posture aligned to IEC 62443, NIST SP 800-82 and ISA-95 Purdue.

OT Cybersecurity Landscape Assessment

Structured evaluation of your OT environment against four internationally recognised frameworks. Output: quantified Security Level Attained versus Security Level Target (SL-A vs SL-T) across all seven IEC 62443 Foundational Requirements — with a risk-prioritised remediation roadmap written for both the engineering team and the board.

IEC 62443-3-3 FR1–FR7 scoring per zone
NIST SP 800-82 r3 controls assessment
ISA-95 / Purdue zone & conduit review
NCSC OT Good Practice gap identification
Engagement & Alignment Framework issued before site work begins

OT Asset Management & Continuous Compliance

A point-in-time assessment expires the moment you leave site. Phase 2 makes visibility permanent. ABEGuardOT is deployed passively — no active scanning, no process risk — and builds a live asset register from day one, converting a snapshot into an ongoing, auditable compliance posture.

Passive OT asset discovery — zero traffic injection
Real-time anomaly detection & alerting
Remote access governance & audit trail
Continuous IEC 62443 compliance monitoring
Asset lifecycle management (firmware, patch, EOL)

Remediation Design & Implementation

We design and implement the zone segmentation, access controls, monitoring architecture, and OT security policy that Phase 1 identifies as priority gaps — sequenced for maximum risk reduction within the operational and budget constraints of a live industrial facility.

Zone segmentation & conduit architecture
Access control hardening
OT security policy framework
Phased remediation roadmap (P0–P3 priority)
Investment summary for board or EXCO reporting

Assessment Standards Basis

IEC 62443-3-3

SL-A vs SL-T gap analysis across all seven Foundational Requirements — FR1 through FR7 — per security zone with quantified findings.

NIST SP 800-82 r3

ICS-specific cybersecurity controls mapped to OT context — programme governance, IRP, supply chain risk, and cryptographic requirements.

ISA-95 / Purdue

Zone and conduit architecture review — identifying where L0–L3.5 boundaries are absent, porous, or uncontrolled. Uncontrolled conduits are CRITICAL findings.

NCSC OT Good Practice

Operational gap identification that translates technical findings into executive risk language and board-level governance requirements.

OT Asset Management & Security Visibility · Southern African Distributor

ABEGuardOT

Drop a folder. Map your entire OT estate. Built by controls engineers for plant operators — no installation, no reboots, no cloud, no vendor lock-in.

Every Vendor

Siemens · Rockwell · ABB · Honeywell · Schneider · Emerson · GE · Yokogawa · Mitsubishi — and more. One platform across your entire mixed estate.

Folder-Based Deploy

Drop a folder on the C: drive. No installer. No reboots. No DLLs. No registry changes. Operational within hours — without touching your process network.

Sees What Scanners Miss

Firmware · BIOS · backup status · reboot history · patch gaps · USB activity · config drift — deep telemetry that active scanners cannot safely gather on live OT networks.

Your Data Stays Put

Zero cloud egress. Fully client-controlled. Air-gap compatible. All data remains within your facility — satisfying the most demanding security and compliance environments.

10 to 10 000 Assets

Same architecture. Same simplicity. Single-site plant to multi-country global estate — one platform. Pricing scales with asset count; complexity does not.

Pays for Itself in Months

Most environments see full ROI within 4–6 months. Net annual gain of R279 200 modelled on 50 OT assets. 3-year net return: R837 600.

4.3 months Payback period

R279k / year Net annual gain

85% reduction Manual audit overhead

R837k 3-year Net return (conservative)

We recommend a Proof of Concept before committing.

ABEGuardOT is a capability commitment — not a software purchase. OTx Systems recommends every client complete a scoped PoC on a representative sample of their OT estate before a deployment decision is made. The PoC is run by our OT engineers, uses your actual assets, and produces a live dashboard of your environment — not a generic demo. It takes 30 minutes to brief and days to deliver insight your team has never had.

Request a PoC

OT Configuration Management & IEC 62443 Enablement

Octoplant — Keeping Production in Perfect Balance

Purpose-built OT/ICS asset backup, version control and change management — delivered in South Africa by Acusys, implemented and integrated by OTx Systems.

IEC 62443 Foundational Requirements Supported

FR3

System Integrity

Automated, scheduled backup of every PLC, DCS, network device and HMI configuration provides a verified integrity baseline. Config drift is detected and alerted — satisfying SL-2 and SL-3 integrity monitoring requirements under IEC 62443-3-3 FR3.

FR7

Resource Availability

Verified, tested configuration backup with version history and one-click restore is the foundation of OT disaster recovery. FR7 at SL-2 requires tested PLC configuration backup — Octoplant makes this automatic, auditable, and demonstrable to regulators and insurers.

FR2

Use Control & Audit Trail

Every configuration change is recorded — who triggered it, when, and what changed. This change history supports FR2 audit logging requirements and provides the forensic trail that post-incident investigations and compliance audits demand.

Multi-Vendor Backup

Siemens, Rockwell, Schneider, ABB, Mitsubishi, Beckhoff, Moxa and more — one repository, one view, one restore point for your entire control system estate.

Automated Change Detection

Real-time alerting on any configuration change — authorised or otherwise. Unauthorised changes are a CRITICAL finding under IEC 62443. Octoplant catches them before they become incidents.

Version History & Rollback

Full version history with side-by-side diff view. Restore any device to any prior verified configuration state — the fastest recovery from a mis-configuration or sabotage event.

Scheduled & On-Demand Backup

Cron-scheduled or triggered at maintenance window close — every device is backed up automatically. No engineer time required after initial setup.

Secure On-Premise Repository

All backups stored in an encrypted, access-controlled repository inside your network boundary. No cloud. No vendor access. Fully client-controlled, audit-ready storage.

Compliance Reporting

Pre-built reports for IEC 62443 FR3 and FR7 evidence, change register export, and asset status summaries — reducing audit preparation from days to minutes.

Octoplant is distributed in South Africa by Acusys. OTx Systems implements and integrates Octoplant as part of the Phase 3 IEC 62443 remediation programme — combining backup governance with the broader zone segmentation and monitoring architecture.

Is your OT environment ready to be assessed?

Every OTx engagement begins with an Alignment & Scoping session — confirming scope, Target Security Levels per zone, team roles, and rules of engagement before a single day of assessment work begins on site. Get in touch to start the conversation.

Start the Conversation

Engineering reliability. Integrating excellence. Empowering industry.

About OTx Systems

Our Expertise

Our Approach

System Reliability

Integration Excellence

Future-Ready Solutions

Our Services

Control Systems Design

Automation Solutions

SCADA & Monitoring

Data Solutions

Instrumentation Design

Project Management

Engineering of Electrical Systems & Design

OT Cybersecurity

Securing the Operations That Keep Industry Running

OT Cybersecurity Landscape Assessment

OT Asset Management & Continuous Compliance

Remediation Design & Implementation

ABEGuardOT

Every Vendor

Folder-Based Deploy

Sees What Scanners Miss

Your Data Stays Put

10 to 10 000 Assets

Pays for Itself in Months

Octoplant — Keeping Production in Perfect Balance

System Integrity

Resource Availability

Use Control & Audit Trail

Multi-Vendor Backup

Automated Change Detection

Version History & Rollback

Scheduled & On-Demand Backup

Secure On-Premise Repository

Compliance Reporting

Is your OT environment ready to be assessed?

Delivering Industrial Excellence

Trusted by Industry Leaders

Strategic Technology Partnerships

Products & Solutions

News, Press & Publications

OTx Systems Industry Newsletter — Biannual 2026 · Volume 1

Is Your OT Environment Cyber Secure?

Standard Terms & Conditions of Sale

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