Schneider Electric DEP112 Digital Input Module | Replacement, Equivalent & Selection Guide
The Schneider Electric DEP112 is a 12-point digital input (DI) module designed for use in Modicon PLC systems. It provides reliable discrete signal acquisition from field devices such as sensors, switches, and push buttons, making it a core I/O component in industrial automation and process control applications. This page serves as a comprehensive selection, replacement, and compatibility reference for engineers and procurement teams sourcing the DEP112 or its equivalents.
Technical Specifications
- Part Number: DEP112
- Manufacturer: Schneider Electric (Modicon)
- Module Type: Digital Input (DI)
- Number of Input Points: 12
- Input Voltage: 24 VDC (nominal)
- Input Logic: Positive / Sink logic
- Isolation: Optocoupler isolation between field and logic side
- Compatible Platform: Modicon TSX Micro / Premium series
- Connector Type: Front-wiring terminal block
- Operating Temperature: 0°C to +60°C
- Weight: 890 g (module with housing)
- Certifications: CE, UL (verify with current datasheet)
Compatible Replacement & Equivalent Models
When the DEP112 is discontinued, unavailable, or requires a cost-effective alternative, the following models are commonly evaluated as replacements. Always verify electrical and mechanical compatibility before substitution.
- Schneider Electric DEP216 — 16-point DI upgrade; same platform, higher channel density
- Schneider Electric TSXDEY16D2 — TSX Premium 16-point 24 VDC DI module; direct platform equivalent
- Schneider Electric TSXDEY08D2 — 8-point DI; suitable for reduced I/O requirements
- Siemens 6ES7321-1BH02-0AA0 — S7-300 16-point DI; cross-brand alternative for new system designs
- Mitsubishi QX40 — MELSEC-Q 16-point 24 VDC DI; suitable for greenfield projects
- Allen-Bradley 1756-IB16 — ControlLogix 16-point DI; high-performance cross-brand option
Note: Cross-brand replacements require system re-engineering. Consult Konmask technical support for compatibility assessment.
Why Choose the Original DEP112
- Drop-in compatibility — No firmware changes or rack modifications required within the Modicon TSX ecosystem
- Proven field reliability — Widely deployed in manufacturing, water treatment, and building automation
- Schneider Electric support — Access to OEM documentation, firmware updates, and certified spare parts
- Reduced commissioning risk — Original hardware eliminates integration uncertainty in legacy systems
- Traceability — Full OEM serial number and batch traceability for regulated industries
Typical Applications
- Discrete signal acquisition from proximity sensors, limit switches, and photoelectric sensors
- Machine tool and conveyor line control
- Water and wastewater treatment plant automation
- HVAC and building management systems (BMS)
- Packaging and material handling lines
- Oil & gas field instrumentation panels
System Compatibility
- PLC Platform: Modicon TSX Micro, TSX Premium
- Rack: TSX RKY series racks (4, 8, 12 slot)
- Power Supply: TSX PSY series
- Programming Software: PL7 Pro, Unity Pro (legacy mode)
- Communication Bus: Modbus, Fipio (platform dependent)
Verify slot position and rack firmware version before installation. Refer to the Schneider Electric TSX Premium hardware manual for slot assignment rules.
Selection Guide
Use the following criteria to determine whether the DEP112 is the right module for your application:
- Channel count: If 12 DI points are sufficient → DEP112 is optimal. For 16+ points, consider TSXDEY16D2.
- Voltage level: Confirm field device output is 24 VDC. For 120 VAC inputs, a different module family is required.
- Platform: DEP112 is exclusive to TSX Micro/Premium. For M340 or M580 platforms, select the corresponding BMX or BME DI module.
- Environment: For harsh environments (vibration, wide temperature range), verify IP rating and consider conformal-coated variants.
- Budget vs. availability: If OEM stock is limited, Konmask can source certified equivalent or refurbished units with full test reports.
Quality Assurance & Sourcing
- All DEP112 units sourced through Konmask.com are inspected and tested prior to shipment
- Original OEM packaging and documentation supplied where available
- Refurbished units include full functional test report and 90-day warranty
- Anti-counterfeit verification available on request
- Batch traceability records maintained for regulated industry customers
How to Order
- Confirm your PLC rack model and available slot type
- Verify input voltage and channel count requirements
- Select DEP112 (OEM new), certified refurbished, or equivalent model
- Add to cart or contact [email protected] for bulk pricing and lead time
- Provide your project BOM for a complete I/O module quotation
Replacement & Compatibility FAQ
Q: Can the DEP112 be used in an M340 rack?
A: No. The DEP112 is designed for TSX Micro/Premium racks only. M340 systems require BMX DDI series modules.
Q: Is the DEP112 still in production?
A: Schneider Electric has transitioned newer designs to the Modicon M340/M580 platform. DEP112 availability depends on OEM stock and certified secondary market supply. Contact Konmask for current stock status.
Q: What is the difference between DEP112 and TSXDEY16D2?
A: The TSXDEY16D2 offers 16 input channels vs. 12 on the DEP112, and is the recommended upgrade path within the TSX Premium platform.
Q: Can I mix DEP112 with other I/O modules in the same rack?
A: Yes, TSX racks support mixed I/O module configurations. Ensure total rack power budget is not exceeded.
Q: Do you provide test reports for refurbished units?
A: Yes. All refurbished DEP112 units from Konmask include a functional test report. Contact us for details.
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