Yokogawa ProSafe-SLS
Overview
Yokogawa ProSafe-SLS comes from the world’s most experienced safety and control firm, with a commitment to reliable, state of the art safety instrumented systems rooted in installations since 1962. The solid-state, hard-wired ProSafe-SLS covers all requirements in the process industries.
The product line covers specific requirements for individual safety instrumented systems and offers all safety integrity levels (SIL 3-4) for the oil and gas, petrochemical, chemical, nuclear, and conventional power industries.
Engineering & Design
Safety-by-design is the foundation of the ProSafe-SLS: it was designed for applications that require the highest Safety Integrity Levels (SIL 3 and 4). It employs solid-state elements to process the functional logic, a technology capable of executing all typical safety tasks as well as the related supplementary non-safety-critical functions, including interfacing with a Human Machine Interface, Process Control System, Sequence of Event Recording system, and SCADA system.
A radical safety achievement is the elimination of software for an operating system and for self-diagnostics; instead, a unique inherent self-test technology is employed throughout all safety-related parts of the system. The ProSafe-SLS is fully integrated with the CENTUM VP process control system together with the ProSafe-RS safety system and FAST/TOOLS SCADA software package.
Key Features
- Solid-state, hard-wired safety system
- SIL 3 and SIL 4 capability
- No operating system or software self-diagnostics
- Unique inherent self-test technology
- Safety-by-design architecture
- Integrated with CENTUM VP and ProSafe-RS
- FAST/TOOLS SCADA interface
- Sequence of Event Recording interface
- Proven since 1962 installations
Applications
- Oil and gas safety systems
- Petrochemical and chemical plants
- Nuclear and conventional power
- Emergency shutdown systems
- High integrity safety functions
Specifications
| Specification | Value |
|---|---|
| Manufacturer | Yokogawa |
| Model | ProSafe-SLS |
| Type | Solid-state, hard-wired SIS |
| Safety Integrity | SIL 3-4 |
| Logic | Solid-state elements |
| Self-Test | Inherent, no software |
| Integration | CENTUM VP, ProSafe-RS, FAST/TOOLS |
| Interfaces | HMI, PCS, SER, SCADA |
| Experience | Installations since 1962 |
For high integrity safety, the Yokogawa ProSafe-SLS safety system is the proven platform, and Seven Star LLC supports the supply of the Yokogawa ProSafe-SLS safety system for your project.
The Yokogawa ProSafe-SLS is the safety instrumented system of the ProSafe family with the registered SIL 3 capability for the process shutdown functions. The system uses the stand-alone logic solver with the dedicated safety engineering environment and the FBD programming. The safety stations are configured in the redundant architecture and the I/O modules are connected to the field sensors and the final elements. The system is used for the emergency shutdown and the fire and gas logic of the plant.
The ProSafe-SLS units are installed in the 19-inch cabinets and the engineering is carried out with the ProSafe software. The system performs the self-diagnostics of the CPU and the I/O channels on the cyclic basis and reports the failures to the operator. The spare cards of the SLS system are matched to the station configuration of the plant.
The ProSafe-SLS system is engineered with the safety function block library and the proof test is supported by the integrated diagnostics. The system is certified for the SIL 3 applications with the TUV assessment and the installation follows the safety manual of the series. The redundant power input and the watchdog of the CPU increase the availability of the shutdown function. The spare modules are ordered with the exact revision of the installed station.
Why Seven Star LLC
Seven Star LLC supports the supply of Yokogawa ProSafe-SLS safety systems and spares for projects across the Gulf, with verified specifications and technical support. Our team assists with system evaluation and spare part planning for installed safety systems.
We serve oil and gas and power customers with reliable B2B supply of safety instrumented system hardware throughout the GCC.
Installation & Operation
The solid-state architecture executes the safety logic without an operating system, and the inherent self-test technology verifies the safety-related parts continuously. The system interfaces with the HMI, process control system, and SER for the plant integration.
The integration with CENTUM VP and ProSafe-RS provides the unified engineering environment, and the FAST/TOOLS SCADA interface completes the operational picture.
Identifying Installed ProSafe-SLS Hardware
Most ProSafe-SLS requirements today concern the support of existing installations, spare modules and system extensions. Because hard-wired safety systems are engineered per project, spare modules must match the installed hardware. Before requesting parts, collect the module type designation, the hardware revision and the serial number from each label, together with the cabinet and rack drawings and the system documentation reference. Our team uses this information to confirm that a replacement is interchangeable with the installed configuration.
- Module type, hardware revision and serial number from the label
- Cabinet, rack and slot position of the module
- Project documentation number and plant tag references
- Photographs of the front panel and connectors where labels are unclear
Modification and Commissioning Practice
Any modification to a safety instrumented system must follow the plant management of change procedure and the requirements of IEC 61511. Replacement modules should be installed by trained personnel following the safety manual, and the affected safety functions verified by a functional test before the system returns to service. Record the test results in the SIS maintenance records.
Maintenance and Lifecycle Planning
Solid-state safety systems usually give a long service life, but older installations need a planned spare parts strategy. Review the installed base, identify critical module types, and hold spares that match the installed revisions. Where components are approaching obsolescence, plan migration or life extension early, so that proof testing and operation of the Yokogawa ProSafe-SLS safety system are not interrupted by a shortage of parts.
Applications in Oman and the GCC
ProSafe-SLS systems are found in emergency shutdown, burner management and high integrity protection roles at oil and gas, petrochemical and power facilities, many of which have operated for many years in the region.
Also available: Yokogawa S9185FA Battery Pack
Request a Quote for Yokogawa-ProSafe-SLS
For the Yokogawa ProSafe-SLS safety system or any related control and instrumentation requirement, contact the Seven Star LLC team. Submit a formal inquiry through our RFQ page with your configuration and application details, and our specialists will respond with a detailed commercial proposal and the official Yokogawa documentation.
Related Products
- Datasheet Yokogawa-ProSafe-SLS Datasheet Download
Yokogawa product families on this page
Pressure is covered by the DPharp transmitters: the EJX110A differential pressure transmitter, the EJX530A and EJA530E in-line gauge pressure transmitters and the EJX910A multivariable transmitter. The ADMAG AXW is the magnetic flowmeter line, and the YTA610 and YTA710 are temperature transmitters. Analyzers include the FLXA402 four-wire and FLXA21 two-wire liquid analyzers, the TDLS8000 tunable diode laser gas analyzer and spare parts for zirconia oxygen analyzers, such as the E7042UD cell assembly kit for the ZR22 detector. Control hardware includes CENTUM VP I/O modules like the ADV161 digital input module and the YS1700 programmable indicating controller.Where Yokogawa instruments are used
EJA and EJX transmitters measure pressure, level and DP flow throughout oil and gas, chemical and power plants. Zirconia oxygen analyzers and the TDLS8000 are used for combustion control on boilers and fired heaters. FLXA analyzers monitor pH, conductivity and dissolved oxygen in water and process streams, and CENTUM modules are bought as replacements for running control systems.Ordering Yokogawa parts: what we need
Send the model and suffix code and the serial number from the nameplate, and for CENTUM modules the style code as well. For transmitters without a code we need span, output protocol, wetted materials, process connection, housing and the approval required. For oxygen analyzer spare parts give the detector and converter models, for example ZR22G and ZR402G, and the part number.Browse Yokogawa products by category: PLC & I/O Cards, Flowmeters, Pressure Instrumentation, Automation Accessories, Temperature Instrumentation.
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