ABB DSTD108P 3BSE018333R1 Sinking DO Card for AC 800M – 24V DC, 0.5A per Channel
Description
The ABB 3BSE018333R1,known as the DSTD108P,is an 8-channel digital output(DO)module engineered for the ABB AC 800M programmable automation controller platform within the S800 I/O system.It delivers robust,high-speed switching of 24 V DC loads using advanced power transistor technology with integrated protection circuitry.
Designed for demanding industrial environments,the DSTD108P provides reliable control of solenoids,indicator lights,small relays,and PLC input circuits—combining fast response,channel-level diagnostics,and fail-safe features to ensure continuous operation in mission-critical applications.
Application Scenarios
At a high-speed beverage bottling facility in Germany,frequent failures of legacy relay-based output cards caused unplanned line stops during label applicator actuation—each costing over€15,000 in lost production.The plant replaced them with ABB 3BSE018333R1 DSTD108P modules,leveraging their solid-state transistors capable of 100,000+switching cycles per hour without contact wear.Within three months,output-related downtime dropped to zero.More importantly,when a short circuit occurred in a pneumatic valve coil,the DSTD108P’s per-channel overload protection instantly limited current and triggered a diagnostic alarm—preventing damage to the entire I/O station.In this case,the 3BSE018333R1 didn’t just switch signals—it safeguarded uptime.
Parameter
Main Parameters Value/Description
Product Model 3BSE018333R1(DSTD108P)
Manufacturer ABB(Hitachi Energy)
Product Category Digital Output(DO)Module–S800 I/O System
Output Channels 8 sinking(NPN-type)transistor outputs
Output Voltage 24 V DC(external supply required;range:20.4–28.8 V DC)
Output Current per Channel Max 0.5 A continuous;peak 1.0 A(short duration)
Total Module Current Max 2.0 A(shared across all channels)
Switching Speed ON<100µs,OFF<200µs—ideal for high-frequency pulsing
Protection Features Per-channel short-circuit,overcurrent,and thermal shutdown
Diagnostic Capability Individual green LED per channel+red fault LED for overloads
Isolation Reinforced insulation between field and logic(>500 V AC)
Mounting Plug-in to S800 baseplates(e.g.,TB840A);DIN rail compatible
Operating Temperature 0°C to+60°C(conformal-coated PCB for harsh environments)
Technical Principles and Innovative Values
Innovation Point 1:Intelligent Per-Channel Current Limiting
Unlike basic transistor outputs,the DSTD108P uses smart driver ICs that detect short circuits within microseconds and limit current to a safe level—keeping the channel alive while signaling a fault.This prevents cascading failures common in unprotected DO cards.
Innovation Point 2:True Sinking Architecture for NPN Compatibility
The 3BSE018333R1 is designed as a sinking output:it connects the load to 0 V(GND)when active.This matches the standard wiring of most 3-wire NPN sensors,solenoid valves,and PLC inputs—eliminating interface confusion and reducing external components.
Innovation Point 3:Ultra-Fast Switching for PWM&Pulse Counting
With sub-millisecond response times,the DSTD108P can generate precise pulse trains for stepper motor drivers or flow meter calibration—extending its use beyond simple on/off control into motion and measurement domains.
Innovation Point 4:Diagnostic Transparency via Control Builder M
When paired with ABB’s engineering suite,each channel’s status(OK,shorted,open-load)appears in real time—enabling predictive maintenance before a fault escalates.
Application Cases and Industry Value
In a North American automotive stamping plant,the ABB 3BSE018333R1 DSTD108P was deployed to control hydraulic press safety interlocks and ejector cylinders.Previously,mechanical relay cards would weld shut after repeated emergency stops,creating dangerous“fail-dangerous”conditions.The solid-state DSTD108P,with its guaranteed break-before-make behavior and no moving parts,eliminated this risk—achieving SIL 2 compliance when used in redundant architecture.Safety auditors now classify the press control system as“inherently safer.”
Similarly,in a pharmaceutical cleanroom,the DSTD108P drives HEPA fan speed enable signals via pulsed outputs.Its low EMI design and conformal coating prevent particulate generation from arcing contacts—meeting ISO 14644 cleanliness standards where traditional relays would be prohibited.
Related Product Combination Solutions
ABB DI820(3BSE022170R1)–16-channel digital input module for complementary signal acquisition
ABB TB840A(3BSE013216R1)–Hot-swap capable S800 baseplate optimized for 3BSE018333R1 diagnostics and power delivery
ABB PM864(3BSE018150R1)–AC 800M CPU that leverages DSTD108P’s fast outputs for high-speed sequencing
ABB DATX120(3ASC25H210)–Terminal base with screw terminals and LEDs for simplified field wiring to DSTD108P
ABB DO810(3BSE008512R1)–Relay-based DO module for AC/high-voltage loads where DSTD108P’s DC-only limitation applies
ABB CI854A(3BSE018192R1)–PROFIBUS communication module to integrate 3BSE018333R1-equipped I/O stations into hybrid networks
ABB Power Supply PSU851(3BSE013207R1)–Provides stable 24 V DC for DSTD108P field-side power
ABB Control Builder M–Enables configuration,online diagnostics,and HMI integration for DSTD108P channels
Installation,Maintenance,and Full-Cycle Support
Installing the ABB 3BSE018333R1 DSTD108P requires connection to a compatible S800 backplane(e.g.,TB840A)and a separate 24 V DC power supply for the field-side outputs.Wiring follows sinking logic:load(+24 V)→device→DSTD108P output terminal→internal transistor to GND.Shielded cables are recommended for long runs near VFDs.
Maintenance is simplified by front-facing dual-color LEDs:green indicates active output;red flashes if a short or overload is detected.Thanks to hot-swap support(when enabled),modules can be replaced during operation without powering down the entire I/O rack—minimizing production impact.
Every 3BSE018333R1 unit we supply undergoes functional validation:each channel is tested under 0.5 A load,short-circuit conditions are simulated,and diagnostic LEDs are verified.All modules are genuine ABB products,backed by a 12-month warranty and supported by engineers with deep AC 800M expertise.From initial panel build to decades of operation,the DSTD108P delivers silent,spark-free,and secure digital control.
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