The HIMA F3236 operates as a central processing unit (CPU) within HIMA’s F3 safety system architecture, serving as the brain that processes input signals, executes safety logic, and sends output commands to field devices. Positioned at the heart of the control layer, it communicates seamlessly with compatible I/O modules (such as the HIMA F3 DIO 88 01) via a high-speed backplane, ensuring minimal latency in signal transmission—a critical feature for time-sensitive safety applications. What sets the HIMA F3236 apart is its dual-core processing design, which enables redundant logic execution: both cores run identical safety algorithms simultaneously, cross-checking results to detect and correct anomalies in real time. This redundancy eliminates single points of failure, a non-negotiable for SIL 3 applications under IEC 61508.
Model NumberF3236
Brand HIMA
Type Safety Controller (CPU Module)
Input Voltage 24 V DC ± 20%
Operating Temp Range -40°C to +70°C (-40°F to +158°F)
Mounting Style Rack-mounted in F3 system enclosures
Dimensions: 100 mm x 160 mm x 220 mm (3.9 in x 6.3 in x 8.7 in)
Weight 550 g (1.21 lbs)
Interface/Bus F3 backplane (100 Mbps), Ethernet (1 Gbps)
Compliance IEC 61508 (SIL 3), IEC 61511, CE, RoHS, ATEX, IECEx
Supported Protocols PROFIBUS DP, Ethernet/IP, Modbus TCP
Typical Power Draw 12 W
The HIMA F3236 operates as a central processing unit (CPU) within HIMA’s F3 safety system architecture, serving as the brain that processes input signals, executes safety logic, and sends output commands to field devices. Positioned at the heart of the control layer, it communicates seamlessly with compatible I/O modules (such as the HIMA F3 DIO 88 01) via a high-speed backplane, ensuring minimal latency in signal transmission—a critical feature for time-sensitive safety applications. What sets the HIMA F3236 apart is its dual-core processing design, which enables redundant logic execution: both cores run identical safety algorithms simultaneously, cross-checking results to detect and correct anomalies in real time. This redundancy eliminates single points of failure, a non-negotiable for SIL 3 applications under IEC 61508.
F3236.
The controller supports a range of industry-standard protocols, including PROFIBUS and Ethernet/IP, allowing it to integrate with existing DCS or SCADA systems without requiring extensive reconfiguration. It also features built-in diagnostic tools that continuously monitor internal operations and connected devices, flagging issues like communication errors or I/O module faults through a user-friendly interface. Whether deployed in a new safety system or as an upgrade to legacy HIMA F3 controllers, the HIMAF3236 acts as a reliable hub, ensuring that safety logic is executed accurately and efficiently, even in the most demanding operational conditions.
F3236.
Technical specifications:
Model NumberF3236
Brand HIMA
Type Safety Controller (CPU Module)
Input Voltage 24 V DC ± 20%
Operating Temp Range -40°C to +70°C (-40°F to +158°F)
Mounting Style Rack-mounted in F3 system enclosures
Dimensions: 100 mm x 160 mm x 220 mm (3.9 in x 6.3 in x 8.7 in)
Weight 550 g (1.21 lbs)
Interface/Bus F3 backplane (100 Mbps), Ethernet (1 Gbps)
Compliance IEC 61508 (SIL 3), IEC 61511, CE, RoHS, ATEX, IECEx
Supported Protocols PROFIBUS DP, Ethernet/IP, Modbus TCP
Typical Power Draw 12 W
Choosing the HIMA F3236translates to tangible operational benefits that extend beyond basic safety compliance. Its dual-core processing architecture ensures that safety logic is executed in under 1 ms—significantly faster than many comparable controllers—reducing response times in critical scenarios like emergency shutdowns. This speed doesn’t come at the expense of reliability, however: the controller’s fault-detection mechanisms, including continuous self-tests and cross-core validation, ensure that even minor anomalies are identified before they can compromise system integrity. For engineers, this means designing safety systems with tighter response windows, which can reduce the risk of process upsets or equipment damage during safety events.
Integration ease is another key advantage. The HIMA F3236 is backward-compatible with older F3 series I/O modules and software tools like HIMA F30 03 SILWORX 209, simplifying upgrades for facilities with legacy HIMA systems. This compatibility eliminates the need for costly rip-and-replace overhauls, reducing engineering overhead and minimizing downtime during installation. Additionally, its support for multiple protocols allows it to communicate with third-party devices, giving teams flexibility in system design without sacrificing safety.
Long-term performance is also a standout feature. Engineered for harsh industrial environments, the HIMA F3236 resists corrosion, vibration, and extreme temperatures, ensuring consistent operation in settings like offshore platforms or chemical plants where environmental stressors are constant. This durability translates to lower maintenance costs and longer service life, making it a cost-effective choice for facilities planning for decades of operation.
Application areas:
The HIMAF3236 excels in industries where safety system performance directly impacts operational success, proving its mettle in environments with unique challenges and high stakes. In oil and gas production, it’s a staple in offshore drilling rigs, where it controls emergency shutdown systems for blowout preventers and wellhead valves. Here, its ability to operate reliably in salt-laden, high-vibration environments ensures that safety logic is executed even during rough seas or equipment malfunctions, preventing catastrophic spills or explosions.
In chemical processing facilities, the HIMA F3236 manages safety instrumented systems for reactors and distillation columns, where precise control over temperature and pressure is critical. Its fast processing speed is particularly valuable here, as it enables rapid responses to sudden process deviations—like unexpected pressure spikes—minimizing the risk of chemical releases or equipment failure. The controller’s compatibility with multiple I/O modules also allows it to handle the diverse array of sensors and actuators typical in these complex plants.
Nuclear power plants, too, rely on the HIMA F3236 to manage safety systems for reactor cooling and containment. Its SIL 3 certification and resistance to electromagnetic interference (a common issue in power generation) ensure compliance with strict regulatory standards, while its redundant design provides an extra layer of protection against unplanned outages. In each of these applications, the HIMA F3236 demonstrates its ability to deliver consistent, reliable performance when it matters most.
Related products:
HIMA F3237 – Higher-performance variant with expanded memory for larger safety logic programs.
HIMA F3235 – Cost-optimized version for smaller-scale safety systems with fewer I/O points.
HIMA F3236-1 – Explosion-proof model certified for use in hazardous areas (Zone 2/22).
HIMA F3240 – Advanced controller with integrated cybersecurity features for networked safety systems.
HIMA F3230 – Legacy predecessor, compatible with older F3 backplane systems (upgrade path available to F3236).
HIMA F3236-R – Redundant pair kit, pre-configured for hot-swap capability in 24/7 operations.
HIMA F3236-BP – Baseplate-mounted version for custom enclosure designs in space-constrained areas.
HIMA F3238 – High-availability model with dual Ethernet ports for redundant network connections.
Installation and maintenance:
Before installing the HIMA F3236, verify that the target rack is compatible with F3 series controllers and that the backplane firmware is updated to version 5.2 or higher—older versions may limit communication speeds with newer I/O modules. Check the enclosure’s cooling capacity: while the controller is designed to withstand high temperatures, it requires a minimum airflow of 0.5 m/s across its surface to prevent overheating in enclosed spaces. Ensure that the power supply is rated for 24 V DC with a maximum ripple of 10%, as unstable power can affect processing accuracy.
For ongoing maintenance, schedule monthly visual inspections to check for loose connections or corrosion on the backplane pins—pay special attention to environments with high humidity or chemical exposure. Use the controller’s built-in LED status indicators to monitor operational health: a steady green light confirms normal operation, while alternating red/green indicates a fault requiring attention. Quarterly, perform a full system test using HIMA F30 03 SILWORX 209 software to validate logic execution and communication with I/O modules. Every two years, inspect the controller’s internal components (by qualified personnel) for signs of wear, particularly on connectors and cooling fans, to ensure long-term reliability.
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