Model Interpretation

3607E：16-point 48VDC sinking TMR digital input module; suffix E = enhanced diagnostic version; matching terminal base model 3607R; exclusively for 48V field dry contact/sink input; incompatible with 24V DI series such as 3503/3504; standard single 3U slot installation in Tricon backplane rack。

Technical Parameters

Electrical Spec

Channel quantity：16 independent sinking digital input

Field rated voltage：48VDC nominal, operating range 38~60VDC, max transient 72VDC

Input characteristic：sink input, field device connects positive 48VDC to input terminal, module internal negative return

Per-channel on-state input current：3~7mA; off-state leakage＜0.1mA

Full channel diagnostics: open circuit, short circuit, abnormal field voltage detection; field-backplane isolation 1500VDC

Backplane power consumption ≤9.8W

Safety & Redundancy

Full TMR triple-circuit hardware voting, single-channel circuit fault will not generate false input signal; certified IEC61508 SIL3, TÜV, UL, FM, CE safety approval

Module internal hardware self-diagnosis + per-loop field fault monitoring, total fault coverage＞99%; SOE event resolution ≤40ms; typical MTBF＞145000 hours

Mechanical & Environment

Standard single-slot Tricon module size(W×H×D):115×32×190mm, net weight≈0.82kg

Operating ambient：−40℃~+70℃; storage temperature −55℃~+85℃; humidity 5%~95%RH non-condensing

Front panel status LED: PASS(overall healthy), FAULT(module/channel fault), grouped channel status indicator

Core Functions

Safe acquisition of 48V dry contact safety field signals; TMR redundant structure ensures input signal reliability for SIS system; online hot swap without system power-off and program stop; per-channel real-time wire break/short fault diagnosis uploaded to TriStation; centralized field wiring via matched 3607R terminal base, each channel with independent field fuse protection。

Application Scenarios

Oil & gas platform ESD emergency shutdown switch signal collection; refinery furnace safety limit switch & flame detector contact input; petrochemical plant F&G fire/gas detector relay feedback; power plant turbine emergency trip auxiliary contact monitoring; chemical factory high-risk equipment safety interlock switch acquisition。

Model Distinction

3607E：16CH 48V sinking TMR DI + 3607R base |3503：16CH 24V sourcing TMR DI+3503R base |3504：32CH 24V sourcing non-TMR DI+3504R base

48V safety contact dedicated input |24V small-point safety input |24V high-density non-safety auxiliary input