STBDDI3420 | Schneider Electric | Advantys STB Digital Input Module
STBDDI3420 is a standard 4-channel digital input module from the Schneider Electric Advantys STB series. It reads 24V DC sink signals for industrial control systems. The module supports hot swapping. This helps reduce downtime during maintenance. It uses the STBXBA1000 I/O base and STBPDT3100 PDM. The product is discontinued. It is superseded by the Modicon X80 range.
Why Buy From Oiltech Controls?
- 15+ years in industrial automation spare parts
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- Tested industrial surplus and refurbished options
- 12-month warranty
- Technical verification before shipment
- Support for obsolete control systems
Technical Specifications
| Parameter | Value |
|---|---|
| Brand | Schneider Electric |
| Model | STBDDI3420 |
| Series | Advantys STB |
| Module Type | Standard digital input module |
| Channels | 4 (sink) |
| Signal Type | 24V DC, IEC/EN 61131-2 Type 1+ |
| Isolation | 1500V DC field-to-bus for 1 minute |
| Hot Swapping | Yes |
| Supply Voltage | 24V DC via PDM |
| Bus Current | 60 mA @ 5V DC |
| I/O Base | STBXBA1000 (13.9 mm) |
| PDM | STBPDT3100 (24V DC) |
| Protection Rating | IP20 |
| Weight | 0.111 kg |
| Operating Temperature | Not available |
| Storage Temperature | Not available |
| Lifecycle | Discontinued (superseded by Modicon X80 range) |
| Last Verified | 2026-09 |
Installation Guide
- Mount the STBXBA1000 I/O base on a DIN rail.
- Insert the STBDDI3420 module into the base.
- Connect the STBPDT3100 PDM for 24V DC power.
- Wire sink input signals to the 4 channels.
- Check polarity before power-up.
- Use hot swapping only in a safe system state.
Commissioning and Maintenance
- Verify 24V DC supply at the PDM.
- Check bus current stays near 60 mA @ 5V DC.
- Test each channel with a known signal.
- Replace modules easily with hot swap support.
- Keep the cabinet clean and within IP20 limits.
Compatibility
- Works with Advantys STB I/O bases.
- Requires STBXBA1000 base.
- Requires STBPDT3100 PDM.
- Replacement path is the Modicon X80 range.
- Designed for 24V DC sink input signals.
Certifications and Compliance
- IEC/EN 61131-2 Type 1+ signal compliance
- 1500V DC field-to-bus isolation
- IP20 protection rating
- Industrial control panel use
Package List
- 1 x STBDDI3420 module
- Technical documents as available
- Protective packaging
Warranty and Shipping
All products include a 12-month warranty. We ship by FedEx, UPS, and DHL. Tracking is provided after dispatch.
Typical Applications
- Discrete sensor input for machines
- Pushbutton and switch monitoring
- Limit switch detection
- Valve position feedback
- Legacy Advantys STB control systems
Diagnostic Capabilities
- Channel-level input status
- Module presence detection
- Bus communication checks
- Power supply monitoring via PDM
FAQ
Q: Is the STBDDI3420 still available?
A: It is discontinued. It is superseded by the Modicon X80 range.
Q: How many channels does it have?
A: It has 4 sink channels.
Q: What input signal does it use?
A: It uses 24V DC, IEC/EN 61131-2 Type 1+.
Q: Does it support hot swapping?
A: Yes. The module supports hot swapping.
Q: What base and PDM do I need?
A: Use STBXBA1000 and STBPDT3100.
Q: What is the warranty?
A: Every order includes a 12-month warranty.
Contact Oiltech Controls
Email: info@oiltechcontrols.com
WhatsApp: +86 158 8020 0923
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Original Source: https://www.oiltechcontrols.com/
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