Model Interpretation

3615E：8CH commoned supervised 24VDC sinking TMR safety output; E=enhanced diagnostic version; matching base only:3615R; sinking output(field side supply +24VDC to module channel); low-power design vs high-current 3608E sourcing series, incompatible with AC output modules 3611E/3613E。

Technical Parameters

Electrical Spec

Channel：8 common-grouped sinking supervised output, commoned field power topology

Nominal field voltage：24VDC, operating range 19.2~30VDC

Per-channel continuous rated：1A resistive load, peak surge 10A/10ms; minimum load ≥20mA for valid open-circuit diagnosis

On-state voltage drop＜2V; off-state leakage≤2mA

Individual channel fast fuse integrated on 3615R terminal base for short protection

Field-to-backplane galvanic isolation：1500VDC per channel

Backplane power consumption≈6W, full per-loop wire break/open-load/short-circuit real-time diagnosis

Safety & Reliability

2oo3 TMR triple hardware voting, single slice fault cannot trigger spurious action; IEC61508 SIL3, TÜV, UL, FM, CE certified

Diagnostic fault coverage＞99%, non-intrusive periodic pulse test without disturbing field device status; SOE resolution≤40ms; typical MTBF＞138000Hrs

Mechanical & Ambient

Single 3U slot module; dimension 115×32×190mm, net weight≈0.92kg

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

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

Core Functions

Low-power 24VDC sinking safety driving for small interlock relays & compact solenoids; TMR redundant circuit avoids false tripping from internal single fault; online hot swap without system shutdown; continuous loop supervision detects broken cable/missing load; diagnostic data upload to TriStation for remote fault check; unified field wiring termination via paired 3615R base。

Application Scenarios

Petrochemical F&G fire alarm safety relay control; refinery auxiliary interlock miniature solenoid drive; onshore oilfield ESD low-power cut-off relay output; thermal power plant boiler auxiliary safety interlock; chemical plant small bypass actuator control。

Model Distinction

3615E：8CH commoned sinking supervised 24VDC TMR DO+3615R |3608E：16CH isolated sourcing supervised 24VDC TMR DO+3608R |3611E：8CH isolated supervised 115VAC TMR DO+3611R