DSQC 652 (3HAC025917-001) is the standard digital input/output module for the ABB IRC5 robot controller — providing 16 discrete inputs and 16 discrete outputs via DeviceNet fieldbus communication.
Ordered under part number 3HAC025917-001 and designated DSQC 652, this compact module measures 155.5 × 41.3 × 98.5 mm and weighs 0.38 kg. It operates at 24V DC and mounts directly inside the IRC5 cabinet, integrating into the controller’s DeviceNet master bus alongside the power distribution architecture managed by the DSQC 662 (3HAC026254-001) and the DSQC 661 (3HAC026253-001).
The DSQC 652 is available through Atlantech Drives — typical delivery 1–2 weeks, worldwide express shipping, 12-month warranty.
What Is the DSQC 652 (3HAC025917-001)?
The DSQC 652 is a DeviceNet-based digital I/O module within the ABB IRC5 controller ecosystem. It is not included as standard in all IRC5 configurations — engineers must verify their specific IRC5 system includes the DSQC 652 before programming I/O signals, as its absence is a common source of configuration confusion in new IRC5 installations.
The module provides 16 digital inputs and 16 digital outputs operating at 24V DC logic levels — significantly higher than typical microcontroller logic (3.3V or 5V). This is an important distinction: connecting standard low-voltage sensors or actuators without appropriate signal conditioning can damage the DSQC 652 or connected equipment.
Four connectors (X1, X2, X3, X4) handle the digital I/O channels, with a dedicated DeviceNet connector (X5) for fieldbus communication. LED indicators on the module face provide real-time status monitoring for both DeviceNet communication health and individual channel states.
Key Technical Specifications
- Part Number: 3HAC025917-001
- Secondary Reference: DSQC 652
- ABB Designation: DSQC 652 I/O Unit
- Function: Digital I/O module — 16 inputs, 16 outputs
- Communication: DeviceNet (master bus)
- Operating Voltage: 24V DC
- Digital Inputs: 16 channels
- Digital Outputs: 16 channels
- Connectors: X1–X4 (I/O channels) + X5 (DeviceNet)
- Net Weight: 0.38 kg
- Dimensions (L × W × H): 155.5 × 41.3 × 98.5 mm
- Country of Origin: Sweden
- LED Indicators: DeviceNet status + channel status
- Minimum Order Quantity: 1 unit
DSQC 652 vs. Related ABB IRC5 I/O Modules — Series Comparison
| Model | Part Number | Function | Communication | I/O Configuration | Voltage |
|---|---|---|---|---|---|
| DSQC 652 | 3HAC025917-001 | Digital I/O Module | DeviceNet | 16DI + 16DO | 24V DC |
| DSQC 651 | 3HAC025784-001 | Analog I/O Module | DeviceNet | 4AI + 4AO | 24V DC |
| DSQC 653 | 3HAC025785-001 | Digital I/O Module (relay) | DeviceNet | 8DI + 8DO relay | 24V DC |
| DSQC 668 | 3HAC029157-001 | Axis Computer | Internal bus | — | 24V DC |
Data sourced from official ABB manufacturer documentation. Contact Atlantech Drives to verify current availability of specific models.
Compatibility & System Integration
The DSQC 652 connects to the IRC5 DeviceNet master bus and is compatible with all IRC5 Single Cabinet and IRC5 Compact configurations. In the IRC5 Compact, only one I/O unit can be mounted inside the cabinet — if a second I/O unit is required, it must be mounted externally.
After physical installation, the DSQC 652 must be configured in RobotStudio or via the FlexPendant — unlike the power components in the IRC5 family, the DSQC 652 requires explicit software configuration before signals can be used in robot programs. Engineers must create an I/O unit definition in the system parameters, assign the correct DeviceNet node address (set via DIP switches on the module), and define individual signal names before the I/O channels become accessible to RAPID programs.
When changing the DeviceNet master baud rate, it is necessary to disconnect and reconnect power to all DSQC 652 units on the bus to establish the new connection. Failing to power-cycle the modules after a baud rate change is the most common cause of DeviceNet communication errors after IRC5 network reconfiguration.
DSQC 652 as a Replacement — Compatibility Notes
The 3HAC025917-001 is the current standard revision of the DSQC 652 I/O unit. Earlier revisions (3HAC025917-001/00, /01) are functionally equivalent in most IRC5 applications — the suffix indicates a hardware revision, not a different product.
When replacing a DSQC 652, the DeviceNet node address set via the DIP switches on the replacement module must match the node address of the module being replaced. The IRC5 system identifies I/O units by their DeviceNet node address — a mismatch causes communication errors and prevents the replacement module from being recognised by the controller.
No RobotWare update is typically required when replacing one DSQC 652 revision with another. If the IRC5 generates DeviceNet configuration mismatch errors after replacement, verify the DIP switch settings before suspecting a board fault.
Frequently Asked Questions
Q: The DSQC 652 is installed in the IRC5 but no I/O signals are visible in the FlexPendant — why?
A: The DSQC 652 does not create I/O signals automatically after installation. The module must be configured in the IRC5 system parameters: create an I/O unit of type DeviceNet Device, assign the correct node address matching the module’s DIP switch setting, then define individual signal names on that unit. Without this configuration step, the module is physically present on the bus but invisible to the robot program.
Q: Can the DSQC 652 be hot-swapped while the IRC5 is running?
A: The module supports hot-swapping in compatible IRC5 configurations. However, any robot program using signals on the DSQC 652 will generate I/O errors during the swap interval. It is strongly recommended to place the IRC5 in a safe stopped state before removing or inserting the module, particularly in applications where unexpected I/O state changes could affect connected machinery or safety circuits.
Q: What is the difference between the DSQC 652 and the DSQC 651?
A: The DSQC 652 (3HAC025917-001) handles digital I/O — 16 discrete 24V inputs and 16 discrete 24V outputs. The DSQC 651 (3HAC025784-001) handles analog I/O — typically 4 analog inputs and 4 analog outputs for signals such as 0–10V or 4–20mA. Both use DeviceNet communication and operate at 24V DC, but they serve entirely different signal types and are not interchangeable.
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