
ICS TriplexT8800 Core Function
Per-Channel Fused Field Power Protection
Each of the 40 input channels incorporates a 50 mA fuse to limit field loop current, preventing cascading failures caused by short circuits or overcurrent events. Dual 24 Vdc power feeds are diode-commonized on the FTA, with a green LED indicating power integrity. This granular protection ensures localized fault isolation without disrupting adjacent channels, ideal for mixed-device installations in petrochemical refineries .
Flexible Line Monitoring and Threshold Configuration
The module supports adaptive voltage threshold settings (-6 Vdc to +36 Vdc) to accommodate aging sensors or noise-prone environments. Users can configure thresholds as a percentage of field supply voltage (e.g., 80% of 24 Vdc = 19.2 Vdc), enabling precise detection of open/short circuits or device alarms. This flexibility is critical for legacy system integration where signal degradation is common .