PLC Systems South Africa | PLC Suppliers & Industrial Automation Solutions
TOSOG – PLC Systems, PLC Modules, Industrial Automation & Control Solutions in South Africa
TOSOG supplies PLC systems, programmable logic controllers, PLC modules and industrial automation equipment to businesses across South Africa. We assist with new installations, automation upgrades, PLC replacements, obsolete PLC systems, machine automation, process control and industrial control system requirements.
Whether you are looking for a PLC supplier in South Africa, a replacement Siemens PLC, Allen-Bradley PLC, Schneider Electric PLC, Mitsubishi PLC, Omron PLC, ABB PLC or another industrial automation controller, TOSOG can assist with sourcing and supply.
We support customers in mining, manufacturing, water and wastewater, power generation, infrastructure, agriculture, material handling, process industries and general industrial automation.
Our PLC solutions can be supplied as individual components or as part of a larger PLC, HMI, SCADA and industrial automation system.
PLC Systems Supplier South Africa
A Programmable Logic Controller (PLC) is an industrial computer designed to control machinery, production equipment and automated processes. PLC systems receive signals from sensors and field devices, process the programmed logic and send commands to actuators, motors, valves, drives and other equipment.
TOSOG supplies PLC systems and automation components for applications ranging from standalone machine control to large industrial plants.
Our PLC offering includes:
- PLC CPUs and processors
- PLC racks and chassis
- Digital input modules
- Digital output modules
- Analogue input modules
- Analogue output modules
- Mixed I/O modules
- Safety PLC modules
- Communication processors
- Ethernet communication modules
- PROFINET modules
- PROFIBUS modules
- EtherNet/IP modules
- Modbus communication modules
- Remote I/O
- Distributed I/O
- PLC power supplies
- HMI panels
- Industrial PCs
- PLC programming equipment
- Industrial Ethernet switches
- Control panels
- SCADA hardware
- PLC accessories and replacement components
TOSOG can assist with new, replacement, aftermarket, surplus, refurbished and obsolete PLC components, subject to availability and technical verification.
PLC Automation Solutions
Our PLC automation solutions are suitable for controlling and monitoring industrial equipment and processes.
Typical applications include:
Mining Automation
PLC systems are widely used for:
- Conveyors
- Crushers
- Screens
- Pumps
- Dewatering systems
- Ventilation systems
- Material handling
- Processing plants
- Crushing and screening plants
- Underground mining systems
- Surface mining infrastructure
TOSOG can assist mining operations with PLC replacement modules, communication modules, I/O modules and automation spares.
Water & Wastewater Automation
PLC systems are commonly used in:
- Water treatment plants
- Wastewater treatment plants
- Pump stations
- RO plants
- Filtration systems
- Chemical dosing systems
- Reservoir control
- Pressure management
- Municipal water infrastructure
PLC systems can be integrated with SCADA and HMI systems for remote monitoring, alarms, trending and operator control.
Manufacturing Automation
PLC automation can control:
- Production lines
- Packaging machines
- Filling systems
- Conveyor systems
- Assembly lines
- Material handling
- Motors and drives
- Pneumatic systems
- Robotic equipment
- Process machinery
Power & Energy
PLC and industrial control systems can be used in:
- Power generation
- Electrical substations
- Pumping systems
- Generator control
- Auxiliary systems
- Cooling systems
- Plant monitoring
- Energy management
Industrial Process Automation
PLC systems can provide control for:
- Pumps
- Motors
- Valves
- Compressors
- Fans
- Boilers
- Heating systems
- Cooling systems
- Instrumentation
- Process equipment
PLC Models & PLC Product Families
TOSOG can source a wide range of PLC models and PLC components from major international manufacturers.
Availability depends on the specific model, part number, firmware and current production status.
Siemens PLC Systems
Siemens SIMATIC PLC systems are widely used throughout industrial automation.
Popular Siemens PLC families include:
- Siemens LOGO!
- Siemens S7-1200
- Siemens S7-1500
- Siemens S7-300
- Siemens S7-400
- Siemens S7-200
- Siemens S7-200 SMART
- Siemens ET 200SP
- Siemens ET 200M
- Siemens ET 200S
- Siemens fail-safe PLC systems
- Siemens distributed I/O systems
Common searches include:
- Siemens PLC
- Siemens PLC supplier South Africa
- Siemens S7-1200 PLC
- Siemens S7-1500 PLC
- Siemens S7-300 PLC
- Siemens S7-400 PLC
- Siemens ET200
- Siemens PLC modules
- Siemens PLC replacement
- Siemens PLC programming
TOSOG can assist with Siemens CPUs, signal modules, communication modules, power supplies and related automation components.
Allen-Bradley / Rockwell Automation PLC Systems
We supply and source Allen-Bradley and Rockwell Automation PLC systems and replacement components.
Popular product families include:
- ControlLogix
- CompactLogix
- MicroLogix
- Micro800
- SLC 500
- PLC-5
- ControlLogix 1756 series
- CompactLogix 1769 series
- CompactLogix 5069 series
- Allen-Bradley I/O modules
- Allen-Bradley communication modules
Common searches include:
- Allen-Bradley PLC
- Allen Bradley PLC supplier South Africa
- Rockwell Automation PLC
- ControlLogix PLC
- CompactLogix PLC
- Allen-Bradley PLC modules
- Allen-Bradley replacement parts
- Allen-Bradley obsolete PLC
- PLC programming South Africa
Schneider Electric PLC Systems
TOSOG can source Schneider Electric Modicon PLC systems and automation components.
Popular Modicon families include:
- Modicon M221
- Modicon M241
- Modicon M251
- Modicon M340
- Modicon M580
- Modicon Premium
- Modicon Quantum
- Modicon Momentum
- Modicon PLC I/O modules
- Modicon communication modules
Common searches include:
- Schneider PLC
- Schneider Electric PLC South Africa
- Modicon PLC
- Modicon M340
- Modicon M580
- Modicon M221
- Schneider PLC modules
- Schneider PLC replacement
Mitsubishi Electric PLC Systems
Popular Mitsubishi PLC families include:
- MELSEC FX
- FX3U
- FX3G
- FX5U
- FX5UC
- MELSEC iQ-F
- MELSEC iQ-R
- Q Series
- L Series
- Mitsubishi remote I/O
- Mitsubishi communication modules
Common searches include:
- Mitsubishi PLC
- Mitsubishi PLC supplier South Africa
- Mitsubishi FX PLC
- Mitsubishi FX5U PLC
- Mitsubishi PLC modules
- Mitsubishi automation
Omron PLC Systems
TOSOG can source Omron industrial automation controllers and PLC components.
Popular Omron PLC families include:
- CP Series
- CJ Series
- CJ1
- CJ2
- NX Series
- NX1P
- NX7
- NJ Series
- Omron I/O modules
- Omron communication modules
- Omron safety controllers
Common searches include:
ABB PLC & Automation Systems
ABB PLC and automation product families include:
- ABB AC500
- AC500-eCo
- ABB AC800M
- ABB S800 I/O
- ABB automation controllers
- ABB I/O modules
- ABB communication modules
Common searches include:
Other PLC Manufacturers
TOSOG can also assist with sourcing PLC systems and automation components from manufacturers including:
- GE / GE Automation
- Emerson
- Delta
- Unitronics
- Phoenix Contact
- Beckhoff
- WAGO
- Hitachi
- Keyence
- Yokogawa
- Honeywell
- Mitsubishi Electric
- Festo
- Schneider Electric
- Rockwell Automation
- Siemens
- ABB
- Omron
TOSOG’s PLC services cover multiple platforms including Siemens SIMATIC, Schneider Modicon, Allen-Bradley/Rockwell, Mitsubishi, Omron, ABB, GE, Delta, Unitronics and Phoenix Contact.
PLC Modules We Supply
A PLC system consists of more than just the CPU. Depending on the application, the system may require several different modules.
PLC CPU Modules
The CPU is the main processing component of a PLC system.
We can assist with:
- PLC processors
- Central processing units
- Compact PLC CPUs
- Modular PLC CPUs
- Safety CPUs
- Redundant CPUs
- High-performance CPUs
Digital Input Modules
Digital input modules receive ON/OFF signals from devices such as:
- Proximity sensors
- Limit switches
- Push buttons
- Pressure switches
- Float switches
- Emergency stop circuits
- Industrial sensors
Digital Output Modules
Digital output modules can control:
- Contactors
- Solenoid valves
- Relays
- Indicator lamps
- Motor starters
- Actuators
Analogue Input Modules
Analogue inputs are used for signals such as:
- 4–20 mA
- 0–10 V
- Temperature
- Pressure
- Flow
- Level
- Load cells
- Process transmitters
Analogue Output Modules
Analogue outputs can be used to control:
- Variable frequency drives
- Control valves
- Speed controllers
- Positioning equipment
- Process equipment
PLC Communication Modules
Modern industrial automation systems require reliable communication between PLCs, HMIs, SCADA systems, drives, remote I/O and field devices.
TOSOG can source communication equipment for protocols including:
- PROFINET
- PROFIBUS
- EtherNet/IP
- Modbus TCP
- Modbus RTU
- EtherCAT
- CANopen
- DeviceNet
- ControlNet
- OPC UA
- Industrial Ethernet
The correct communication module must be selected according to the PLC family, firmware, network architecture and required protocol.
PLC + HMI + SCADA Systems
A modern automation system often combines several technologies:
Sensors → PLC → HMI → SCADA → Industrial Network → Database / Reporting
PLC
Controls the machine or process in real time.
HMI
Provides an operator interface for:
- Start/stop controls
- Process information
- Alarms
- Setpoints
- Status information
- Diagnostics
SCADA
Provides higher-level monitoring and supervisory control.
TOSOG supplies and supports PLC-related SCADA hardware and platforms including WinCC, FactoryTalk, EcoStruxure, System 800xA and AVEVA System Platform.
PLC Programming & Automation Services
TOSOG can assist with PLC-related engineering and automation requirements, including:
- PLC programming
- PLC troubleshooting
- PLC fault finding
- PLC installation
- PLC commissioning
- PLC upgrades
- PLC migration
- PLC backup and recovery
- PLC panel design
- Machine automation
- Industrial network configuration
- Remote PLC support
- SCADA integration
- HMI integration
- Automation system upgrades
Where technically appropriate, legacy PLC systems can also be assessed for migration to newer platforms.
PLC Replacement & Obsolete PLC Sourcing
Industrial plants often continue operating equipment for many years after a PLC manufacturer has discontinued the original controller.
TOSOG assists customers looking for:
- Obsolete PLCs
- Discontinued PLC modules
- Legacy PLC CPUs
- Replacement I/O cards
- Replacement communication modules
- PLC power supplies
- Old Siemens modules
- Old Allen-Bradley modules
- Old Schneider Modicon modules
- Legacy ABB modules
- Refurbished PLC components
- Surplus PLC stock
For difficult-to-source components, customers can provide the manufacturer, part number, model number, photograph, nameplate or existing module and TOSOG can assist with identification and sourcing.
How to Order a PLC from TOSOG
For the fastest quotation, send us as much information as possible.
Recommended information:
1. Manufacturer
Example: Siemens
2. PLC family
Example: S7-1500
3. Part number
Example: 6ES7…
4. Quantity
Example: 2 units
5. Existing system
Provide a photograph if possible.
6. Application
Example: Water treatment plant / conveyor / mining plant.
7. Required condition
- New
- OEM
- Aftermarket
- Refurbished
- Used
- Surplus
8. Delivery location
Provide your South African delivery address.
A photograph of the existing PLC module or nameplate can often help us identify the correct replacement.
Tips When Buying PLC Systems
1. Always provide the complete part number
PLC product families can contain hundreds of different CPUs, I/O cards and communication modules.
A small difference in the part number can mean a completely different product.
2. Check firmware compatibility
A replacement PLC CPU may require compatible firmware or engineering software.
3. Check communication protocols
Confirm whether your system uses:
- PROFINET
- PROFIBUS
- EtherNet/IP
- Modbus
- EtherCAT
- CAN
- Other industrial protocols
4. Check I/O requirements
Determine:
- Number of digital inputs
- Number of digital outputs
- Analogue inputs
- Analogue outputs
- Voltage requirements
- Current requirements
- Safety I/O requirements
5. Check power supply requirements
Verify whether the PLC requires:
- 24 VDC
- 120 VAC
- 230 VAC
- Dedicated manufacturer power supply
6. Consider future expansion
If the plant may expand, select a PLC platform that can support additional I/O, communication and processing requirements.
7. Keep critical PLC spares
For critical production systems, keeping spare CPUs, power supplies and commonly failing I/O modules can significantly reduce downtime.
8. Do not replace a PLC based only on physical appearance
Two PLC modules can look similar but have different:
- Firmware
- I/O configurations
- Communication protocols
- Voltage ratings
- Memory
- Software requirements
- Hardware revisions
Always verify the complete part number.
Why Choose TOSOG for PLC Systems?
TOSOG provides PLC and industrial automation sourcing for customers across South Africa.
Our advantages include:
✓ Multi-brand PLC sourcing
We work across major automation manufacturers rather than being restricted to one PLC brand.
✓ New and replacement PLCs
We can assist with new systems as well as replacement and legacy components.
✓ Hard-to-find automation parts
We can source obsolete and difficult-to-find PLC components through international supplier networks.
✓ Industrial experience
Our automation offering supports demanding applications including mining, manufacturing, water, power and infrastructure.
We can assist with both PLC hardware and associated HMI/SCADA requirements.
✓ Technical RFQ support
Send us a part number, photograph or nameplate and we can help identify the required component.
✓ South Africa-wide supply
We supply industrial automation equipment to customers across South Africa.
PLC Systems South Africa – Frequently Asked Questions
What is a PLC system?
A PLC system is an industrial control system based around a Programmable Logic Controller. It receives inputs from sensors and equipment, executes programmed logic and controls connected machinery and processes.
What is the most common PLC brand?
The most appropriate PLC depends on the industry, existing installed base and application. Siemens, Rockwell Automation/Allen-Bradley, Schneider Electric, Mitsubishi, Omron and ABB are among the major PLC manufacturers used in industrial automation.
Where can I buy a PLC in South Africa?
TOSOG supplies and sources PLC systems, PLC modules and industrial automation components for customers across South Africa.
Do you supply Siemens PLCs?
Yes. TOSOG can assist with Siemens SIMATIC PLCs including S7-1200, S7-1500, S7-300, S7-400 and related ET200 components, subject to availability.
Do you supply Allen-Bradley PLCs?
Yes. TOSOG can assist with Allen-Bradley/Rockwell Automation PLC families including ControlLogix, CompactLogix, MicroLogix and related modules.
Do you supply Schneider PLCs?
Yes. We can source Schneider Electric Modicon PLCs and related components including M221, M241, M340 and M580 families.
Can you supply obsolete PLC modules?
Yes. TOSOG assists with sourcing legacy, obsolete and discontinued PLC modules where available.
Can you supply refurbished PLCs?
Refurbished and used automation components may be available depending on the required model and supplier stock. Testing, condition and warranty should be confirmed for each specific item.
Can you help identify a PLC from a photograph?
Yes. Send a clear photograph showing the PLC nameplate, manufacturer, model and part number. We can assist with identification and sourcing.
Can you supply PLC I/O modules?
Yes. We can source digital input, digital output, analogue input, analogue output, communication and specialised I/O modules.
Do you supply PLC communication modules?
Yes. We can source communication modules for industrial networks including PROFINET, PROFIBUS, EtherNet/IP, Modbus and other protocols depending on the PLC platform.
Can PLC systems connect to SCADA?
Yes. PLCs are commonly integrated with SCADA systems for monitoring, supervisory control, alarms, historical data and operator interfaces.
Do you provide PLC programming?
TOSOG provides PLC programming, troubleshooting, commissioning, upgrades, migration, backup/recovery and related automation services.
Do you supply PLC systems for mining?
Yes. PLC systems and automation components can be supplied for mining applications including conveyors, crushers, pumps, dewatering, material handling and processing plants.
Do you supply PLC systems for water treatment plants?
Yes. PLC and SCADA systems are commonly used for water treatment, wastewater, RO plants, pump stations, filtration and chemical dosing applications.
Request a PLC Systems Quote
Looking for a PLC supplier in South Africa?
Need a Siemens PLC, Allen-Bradley PLC, Schneider PLC, Mitsubishi PLC, Omron PLC, ABB PLC, PLC module or obsolete automation component?
Send TOSOG:
Manufacturer + Model + Part Number + Quantity + Application + Delivery Location
You can also send a photograph of the existing PLC or module if the part number is unavailable.
TOSOG – Industrial Automation & PLC Systems
PLC Systems | PLC Modules | Industrial Automation | HMI | SCADA | Control Systems | PLC Programming | Automation Spares
Request a quotation today for your PLC system or automation component.
TOSOG – South Africa