Manufacturer: ICS Triplex Part number: ICS Triplex T3310
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T3310: Product OverviewThe T3310 is a high-density digital input module designed for integration into the ICS Triplex Trident and Trusted safety instrumented system (SIS) architectures. It occupies a single slot within a standard system chassis and serves as the primary interface for acquiring discrete signals from field-mounted devices such as pushbuttons, limit switches, and contactors. Its role is to convert the status of these 24VDC field inputs into a digital format suitable for processing by the system’s logic solver.The core functionality involves reading the on/off state of up to 32 independent channels. Each channel is individually monitored for faults, with diagnostics capable of detecting conditions like wire breaks, short circuits to supply, and short circuits to ground. Validated input data is then transmitted to the safety logic solver via the chassis backplane. The module belongs to the Trident and Trusted product families, platforms engineered for fault tolerance and compliance with stringent safety standards. The benefits of this platform include a unified architecture, advanced diagnostics for predictive maintenance, and the ability to achieve SIL 3 safety integrity levels, which is critical for protecting personnel and assets in high-risk processes.
ICS TRIPLEX T9432
T3310: Technical Specifications
Model Number: T3310
Manufacturer: ICS Triplex
Product Type: 32-Channel Digital Input Module
Number of Channels: 32
Input Type: Sink (current sinking)
Nominal Input Voltage: 24 VDC
Input Voltage Range: 15 VDC to 30 VDC
On-State Current: 5 mA typical
Off-State Voltage: Maximum 5 VDC
Power Consumption: 2 W (from backplane)
Safety Integrity Level: SIL 3 (when integrated into a certified SIS)
Operating Temperature: -40°C to +70°C (-40°F to +158°F)
Dimensions: 31.8 mm x 128.3 mm x 119.9 mm (1.25 in x 5.05 in x 4.72 in)
Weight: Approximately 0.3 kg (0.66 lbs)
Certification: TÜV Rheinland certified
Core Features & Customer ValueHigh-Density Channel Count: Providing 32 input channels in a single slot reduces the physical footprint in the control rack and minimizes the quantity of marshalling and termination hardware required. For the end user, this translates to lower panel space requirements and reduced installation costs. The compact design also simplifies cable routing and documentation.Advanced Diagnostic Capabilities: The module continuously performs diagnostics on each channel and the field wiring. It can detect open circuits, short circuits, and overload conditions. For the maintenance team, this feature provides immediate fault indication, pinpointing the location of a wiring issue without extensive troubleshooting, thus reducing mean time to repair and enhancing system availability.Group Voting Configuration: The module supports configurable grouping of input channels for 2-out-of-3 voting logic. This allows engineers to implement higher safety integrity for critical signals by requiring agreement from two out of three redundant sensors. The value is the ability to meet specific safety requirements directly at the I/O level, simplifying the logic in the central processor.Seamless Backplane Integration: The module communicates with the logic solver and other system components via the proprietary chassis backplane. This ensures deterministic and high-speed data transfer without the complexities of external networking. For the system integrator, this means a plug-and-play installation process and reliable communication guaranteed by the system vendor.
Typical ApplicationsThe T3310 is utilized in safety systems where numerous discrete sensors must be monitored for emergency shutdown or process interlock functions. In an offshore oil and gas production facility, it can be used to read the status of 32 emergency stop pushbuttons located on a drilling platform, providing a centralized input point for the safety system.In a large chemical processing plant, the module might be installed to acquire signals from valve position indicators on a reactor feed system. Each channel could monitor a limit switch on a different valve, allowing the safety system to confirm that all isolation valves are closed before initiating a batch process.Another application is in a power generation plant’s boiler protection system, where the module collects signals from flame scanners, pressure switches, and temperature sensor contacts. The high channel count allows for comprehensive monitoring of multiple parameters with minimal rack space usage.
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