OMRON SRT2-MD16T-1 CompoBus/S Output I/O Module | Replacement, Equivalent & Selection Guide
The OMRON SRT2-MD16T-1 is a 16-point NPN transistor output I/O module designed for the CompoBus/S (DeviceNet-compatible) distributed I/O network. It enables high-speed, reliable digital output control in industrial automation systems. This page serves as a comprehensive selection, replacement, and sourcing reference for engineers and procurement teams.
Technical Specifications
| Parameter | Value |
|---|---|
| Model | SRT2-MD16T-1 |
| Brand | OMRON |
| Series | SRT2 (CompoBus/S Slave) |
| I/O Type | Output (16-point) |
| Output Type | NPN Transistor (Sink) |
| Rated Output Voltage | 24 VDC |
| Max Load Current | 0.5 A per point |
| Communication Protocol | CompoBus/S (High-speed DeviceNet) |
| Baud Rate | 750 kbps / 93.75 kbps |
| Power Supply | 24 VDC (from I/O power supply) |
| Protection | Short-circuit & overload protection |
| Operating Temperature | 0°C to 55°C |
| Dimensions (W×H×D) | Approx. 31 × 90 × 65 mm |
| Weight | Approx. 300 g |
| Certifications | CE, UL |
Compatible Replacement & Equivalent Models
When the SRT2-MD16T-1 is unavailable or discontinued, the following models may serve as functional replacements. Always verify electrical and protocol compatibility before substitution.
| Model | Brand | Type | Notes |
|---|---|---|---|
| SRT2-OD16T-1 | OMRON | Output Only | Direct OMRON equivalent, output-only variant |
| SRT2-MD16T | OMRON | Mixed I/O | Earlier revision; verify firmware compatibility |
| GRT1-OD16 | OMRON | Output Module | GRT1 series; requires GRT1 coupler |
| DRT2-OD16T | OMRON | DeviceNet Output | DeviceNet protocol; confirm network compatibility |
| IC200MDL740 | GE Fanuc | Output Module | Third-party; protocol adapter may be required |
⚠ Note: Third-party replacements may require additional configuration. Consult your system integrator before substitution.
Why Choose the Original Model
- Native CompoBus/S Integration: Plug-and-play with OMRON CS/CJ/CP series PLCs — no additional configuration required.
- High-Speed Communication: 750 kbps baud rate ensures minimal latency in time-critical control loops.
- Proven Reliability: Designed for 24/7 industrial environments with built-in short-circuit protection.
- Compact Form Factor: Space-efficient design reduces panel footprint in dense control cabinets.
- OMRON Ecosystem Support: Full compatibility with CX-Programmer, Sysmac Studio, and OMRON network configurators.
Typical Applications
- Conveyor and material handling systems
- Packaging and labeling machinery
- Automotive assembly line control
- Food & beverage processing equipment
- Semiconductor and electronics manufacturing
- Building automation and HVAC control panels
System Compatibility
The SRT2-MD16T-1 is compatible with the following OMRON PLC families when used with a CompoBus/S master unit:
- CS1 Series: CS1W-SRM21 master unit
- CJ1/CJ2 Series: CJ1W-SRM21 master unit
- CP1 Series: CP1W-SRM21 master unit
- C200HX/HG/HE Series: C200HW-SRM21-V1 master unit
Maximum slave nodes per network: 32 nodes (high-speed mode) / 64 nodes (long-distance mode).
Selection Guide
Use the following criteria to confirm the SRT2-MD16T-1 is the right module for your application:
- ✅ Network: Your system uses CompoBus/S (not standard DeviceNet or EtherNet/IP)
- ✅ Output Type: You require NPN (sink) transistor outputs at 24 VDC
- ✅ Point Count: 16 output points are sufficient for your I/O requirements
- ✅ Load Current: Each output load does not exceed 0.5 A
- ✅ Environment: Operating temperature is within 0°C–55°C range
If you need PNP (source) outputs, consider the SRT2-MD16T or SRT2-OD16. For mixed I/O (inputs + outputs), the SRT2-MD16T-1 itself provides 8 inputs + 8 outputs in some configurations — confirm your exact wiring diagram.
Quality Assurance & Sourcing
- Source: Konmask.com sources SRT2-MD16T-1 units from authorized distributors and verified secondary-market suppliers.
- Inspection: All units undergo visual inspection and functional verification before shipment.
- Authenticity: Genuine OMRON labeling, date codes, and packaging are verified.
- Warranty: 90-day replacement warranty on all shipped units.
- Lead Time: Typically 3–7 business days for in-stock units; contact us for urgent requirements.
How to Order
- Confirm your PLC series and CompoBus/S master unit model number.
- Verify required output type (NPN/PNP) and point count.
- Add SRT2-MD16T-1 to cart or contact us for bulk/OEM pricing.
- Provide your shipping address and preferred freight method at checkout.
- For urgent or large-volume orders, email support@konmask.com directly.
Replacement & Compatibility FAQ
Q: Can I replace SRT2-MD16T-1 with SRT2-OD16T-1?
A: Yes, if your application only requires output points. The SRT2-OD16T-1 is an output-only module and is a direct functional replacement for the output channels of the SRT2-MD16T-1.
Q: Is SRT2-MD16T-1 compatible with DeviceNet masters?
A: CompoBus/S is a high-speed subset of DeviceNet. It is NOT directly interchangeable with standard DeviceNet masters. Use only with CompoBus/S master units.
Q: What is the difference between SRT2-MD16T and SRT2-MD16T-1?
A: The “-1” suffix typically denotes a revised hardware version with improved noise immunity. Always use the same revision as your existing network nodes when possible.
Q: Can I use this module with a Siemens or Mitsubishi PLC?
A: Not natively. A protocol gateway or converter would be required. Contact us for integration consulting.
Q: Do you offer a datasheet or wiring diagram?
A: Yes. Contact support@konmask.com and reference model SRT2-MD16T-1 to request documentation.
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