T8461C Three-mode redundancy (TMR) 24V DC / 48V DC digital output module

T8461C  Three-mode redundancy (TMR) 24V DC / 48V DC digital output module

Trusted® Three-Mode Redundancy (TMR) 24V DC / 48V DC digital output modules interface to 40 field devices. Three diagnostic tests are performed throughout the module, including measurements of the current and voltage in each part of the voting output channel. Tests are also performed for bonding and tripping faults. Fault tolerance is achieved through the TMR architecture within the module and can be used for each of the 40 output channels.
Provides automatic line monitoring of field equipment. This function enables the module to detect open and short circuit faults in field wiring and load equipment.
The module provides onboard Event sequence (SOE) reports with a resolution of 1ms. The output change of the state triggers the SOE entry. The output state is automatically determined by voltage and current measurements on the module.
This module is not allowed to be directly connected to hazardous areas and should be used in conjunction with essential safety barrier devices.

peculiarity
• 40 TMR output channels per module.
• Comprehensive, automated diagnostics and self-tests.
• Automatic line monitoring per channel to detect open and short field wiring and load failures.
•2500V pulsed optical/electrical isolation barrier.
• Automatic overcurrent protection (per channel) without external fuses.
• Onboard Event sequence (SOE) reports with a resolution of 1ms.
• Support for online hot replacement modules through dedicated Companion(adjacent)Slot or SmartSlot(multiple modules in one standby slot) configuration.
• Front panel output status Light emitting diodes (leds) in each channel indicate output status and field wiring faults.
• Front panel module status led indicates module health and operating mode (Active, Standby, connected).
•T V certified to IEC 61508 SIL 3.
• Output is powered by 8 isolated groups. Each of these groups is a power group (PG).