ABB DSQC350B Remote I/O Communication Module
The ABB 3HNE00025-1/20, also cataloged as the DSQC350B Remote I/O Communication Module, operates as a dedicated hardware component for remote digital signal expansion and slave fieldbus coupling within ABB IRC5 robot control networks. The unit interfaces up to 128 discrete input and output channels over an Interbus-S fieldbus loop, maintaining cyclic data exchange at transmission rates up to 500 kbps under a 24 VDC power architecture.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | DSQC350B |
| Brand | ABB |
| Origin | Sweden |
| Weight | 0.6 kg |
| Dimensions | 120 mm x 100 mm x 80 mm |
| Operating Temp | 0 to +55 deg C |
| Power Consumption | 24 VDC +/-10% |
| Part Number | 3HNE00025-1/20 (Base: 3HNE00025-1) |
| Series | DSQC Series |
| Product Type | Remote I/O Communication Modules |
| Fieldbus Protocol | Interbus-S (Follower mode with status indication) |
| Max Data Transfer Rate | Up to 500 kbps |
| I/O Address Capacity | Up to 128 digital inputs / 128 digital outputs |
| Protection Rating | IP20 |
| Storage Temperature | -25 to +70 deg C |
| Certifications | CE, UL, EN 60204-1 |
High-Density I/O Routing and Backplane Determinism
The ABB DSQC350B utilizes high backplane bus communication velocity to pass external sensor states directly to the host IRC5 main CPU without processing latency. Firmware flash compatibility ensures automatic node addressing and diagnostics synchronization across the Interbus-S network topology. Rapid I/O density scaling allows simultaneous handling of up to 128 inputs and outputs, preserving deterministic control cycles for high-speed industrial robotics.
Frequently Asked Questions
Q: How does the DSQC350B module report field bus transmission errors to the main controller?
A: The module incorporates front-panel diagnostic LEDs for power, bus operational state, and internal module faults, sending failure flags over Interbus-S telegrams to trigger IRC5 system interrupts.
Q: What environmental housing requirement is specified for this module?
A: The unit holds an IP20 protection rating and must be mounted inside an IP54 or higher industrial control cabinet to prevent dust accumulation and moisture intrusion.
Field Installation Guidelines
- Power Disconnection: Shut off main 24 VDC power to the controller rack before inserting or removing terminal blocks to prevent contact arcing.
- DIN Rail Mounting: Clip the module securely onto a standard 35 mm DIN rail inside the enclosure, verifying top and bottom latches lock in place.
- Shield Grounding: Connect Interbus-S communication cable shields to the nearest cabinet ground bus bar to eliminate electromagnetic interference.
- Cable Strain Relief: Secure field I/O wiring using cable ties to avoid mechanical stress on the terminal headers during high-vibration robotic operations.
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| Shipping Port | ShangHai, Xiamen |
| Warranty | 12 Months |
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