T8451 | ICS Triplex | Trusted TMR 24 Vdc Digital Output Module
DESCRIPTION
The ICS Triplex T8451 Trusted TMR 24V dc Digital Output Module interfaces with up to 40 field output devices. The outputs are organized into five groups, each consisting of eight outputs. All outputs within a group share a common power source and return. The module ensures fault tolerance through Triple Modular Redundancy (TMR) for each of the 40 output channels within the same module.
The module features on-board Sequence of Events (SOE) reporting with a resolution of 1ms, where the “event” is the sensing of the field device loop current.
Each triplicated section (slice) of the module receives output data from the TrustedTM TMR Processor and transmits its data to an internal safety layer hardware voter. Each slice uses the voted data to control the outputs. Every output channel includes a six-element voted array. This output switch array ensures fault-tolerant and uninterrupted control even under output switch failure conditions. Output switching and fault diagnostics comply with IEC-61508 SIL-3 requirements for First Fault - Fault Tolerant, and Second Fault - Fail Safe outputs.
When a module fault is detected, the TrustedTM TMR Processor flags the unhealthy condition, indicating the need for module replacement. Control continues until a replacement (healthy) module is available. Replacement modules can be placed in a standby slot next to the module or in a designated SmartSlot with a temporary connection to the same TrustedTM Termination Assembly.
Each output is user-configurable to perform line monitoring of connected field devices, detecting field wiring and load failures. Automatic over-current protection is built into every output circuit, eliminating the need for fuses.
Modules can be installed in any I/O module slot in a TrustedTM Processor Chassis or Expander chassis. Mechanical keying is available on all I/O modules to prevent incorrect slot insertion. Module configuration is done using the TrustedTM Toolset on an Engineering Workstation. Once configured and loaded into the TrustedTM Controller, replacement modules are online educated by the TMR Processor.
FEATURES
- 40 TMR output channels per module
- Five isolated groups of eight outputs each
- Six-element voted output array
- Comprehensive diagnostics and self-test
- Guaranteed, First Fault – Fault Tolerant, Second Fault – Fail Safe
- Line monitoring on a per channel basis
- Automatic over-current protection – no fuses required
- 2500V dc Opto-Isolation
- Hot replaceable
- Front panel status LEDs for each channel
- Module fault and status indicators
- IEC 61508, SIL 3 safety applications
- On-board 1 ms resolution Sequence of Events reporting
ELECTRICAL SPECIFICATION
- Number of Outputs: 40 Channels
- No. of Independent Power Groups: 5, each of 8 outputs
-
Field Common Isolation
- Sustained Working: ±250V dc
- Maximum Withstanding: ±2.5kV dc
-
Output Voltage
- Measurement Range: 0 to 36V dc
- Maximum Withstanding: -1 to 60V dc
-
Output Current Rating
- Continuous: 2A
- Output Off Resistance (effective leakage): 33kΩ
- Power Consumption: 24W (1A per channel)
- Output Turn On/Off Delay: 0.5ms
- Self-Test: Internal 2 minutes
- Output Short Circuit Protection: Automatic
- Fusing: Not required
- Intrinsic Safety: External barrier
- Circuit Type: Fault tolerant, fully triplicated with optional line monitoring
MECHANICAL SPECIFICATION
- Dimensions (HxWxD): 241mm x 30mm x 300mm (9.5in x 1.2in x 11.8in)
- Weight: 1.13kg (2.5lbs)
ENVIRONMENTAL
- Operating Temperature: -5°C to 60°C (23°F to 140°F)
- Operating Humidity: 5 to 95%, non-condensing
-
Vibration:
- 10 to 57Hz: ±0.075mm
- 57 to 150Hz: 1.0g
- Shock: 15g, ½ sine wave, 11ms
-
EMI (IEC 801):
-
ESD:
- Air discharge: up to 15kV
- Contact discharge: up to 8kV
- Radiated Fields: 10V/m, 27MHz to 500MHz
- Transients and Bursts: 2kV, 2.5kHz for t=60 seconds
-
ESD:
T8451 | ICS Triplex | Trusted TMR 24 Vdc Digital Output Module
T8451 | ICS Triplex | Trusted TMR 24 Vdc Digital Output Module
DESCRIPTION
The ICS Triplex T8451 Trusted TMR 24V dc Digital Output Module interfaces with up to 40 field output devices. The outputs are organized into five groups, each consisting of eight outputs. All outputs within a group share a common power source and return. The module ensures fault tolerance through Triple Modular Redundancy (TMR) for each of the 40 output channels within the same module.
The module features on-board Sequence of Events (SOE) reporting with a resolution of 1ms, where the “event” is the sensing of the field device loop current.
Each triplicated section (slice) of the module receives output data from the TrustedTM TMR Processor and transmits its data to an internal safety layer hardware voter. Each slice uses the voted data to control the outputs. Every output channel includes a six-element voted array. This output switch array ensures fault-tolerant and uninterrupted control even under output switch failure conditions. Output switching and fault diagnostics comply with IEC-61508 SIL-3 requirements for First Fault - Fault Tolerant, and Second Fault - Fail Safe outputs.
When a module fault is detected, the TrustedTM TMR Processor flags the unhealthy condition, indicating the need for module replacement. Control continues until a replacement (healthy) module is available. Replacement modules can be placed in a standby slot next to the module or in a designated SmartSlot with a temporary connection to the same TrustedTM Termination Assembly.
Each output is user-configurable to perform line monitoring of connected field devices, detecting field wiring and load failures. Automatic over-current protection is built into every output circuit, eliminating the need for fuses.
Modules can be installed in any I/O module slot in a TrustedTM Processor Chassis or Expander chassis. Mechanical keying is available on all I/O modules to prevent incorrect slot insertion. Module configuration is done using the TrustedTM Toolset on an Engineering Workstation. Once configured and loaded into the TrustedTM Controller, replacement modules are online educated by the TMR Processor.
FEATURES
- 40 TMR output channels per module
- Five isolated groups of eight outputs each
- Six-element voted output array
- Comprehensive diagnostics and self-test
- Guaranteed, First Fault – Fault Tolerant, Second Fault – Fail Safe
- Line monitoring on a per channel basis
- Automatic over-current protection – no fuses required
- 2500V dc Opto-Isolation
- Hot replaceable
- Front panel status LEDs for each channel
- Module fault and status indicators
- IEC 61508, SIL 3 safety applications
- On-board 1 ms resolution Sequence of Events reporting
ELECTRICAL SPECIFICATION
- Number of Outputs: 40 Channels
- No. of Independent Power Groups: 5, each of 8 outputs
-
Field Common Isolation
- Sustained Working: ±250V dc
- Maximum Withstanding: ±2.5kV dc
-
Output Voltage
- Measurement Range: 0 to 36V dc
- Maximum Withstanding: -1 to 60V dc
-
Output Current Rating
- Continuous: 2A
- Output Off Resistance (effective leakage): 33kΩ
- Power Consumption: 24W (1A per channel)
- Output Turn On/Off Delay: 0.5ms
- Self-Test: Internal 2 minutes
- Output Short Circuit Protection: Automatic
- Fusing: Not required
- Intrinsic Safety: External barrier
- Circuit Type: Fault tolerant, fully triplicated with optional line monitoring
MECHANICAL SPECIFICATION
- Dimensions (HxWxD): 241mm x 30mm x 300mm (9.5in x 1.2in x 11.8in)
- Weight: 1.13kg (2.5lbs)
ENVIRONMENTAL
- Operating Temperature: -5°C to 60°C (23°F to 140°F)
- Operating Humidity: 5 to 95%, non-condensing
-
Vibration:
- 10 to 57Hz: ±0.075mm
- 57 to 150Hz: 1.0g
- Shock: 15g, ½ sine wave, 11ms
-
EMI (IEC 801):
-
ESD:
- Air discharge: up to 15kV
- Contact discharge: up to 8kV
- Radiated Fields: 10V/m, 27MHz to 500MHz
- Transients and Bursts: 2kV, 2.5kHz for t=60 seconds
-
ESD:
