OHM PS-20T-R PLC Programming Unit | Replacement, Equivalent & Selection Guide
The OHM PS-20T-R is a handheld programming unit designed for OHM Electric PLC systems. It provides a compact, portable interface for program entry, monitoring, and debugging of compatible OHM PLC controllers. This page serves as a comprehensive selection and replacement reference for engineers and procurement teams sourcing the PS-20T-R or its functional equivalents.
Technical Specifications
- Model: PS-20T-R
- Manufacturer: OHM Electric (大崎電気工業)
- Type: Handheld PLC Programming Unit / Programmer Console
- Series: PS Series
- Interface: Dedicated serial port for OHM PLC connection
- Display: Built-in LCD display for ladder/instruction monitoring
- Input Method: Keypad-based instruction entry
- Weight: Approx. 1,120 g
- Application: Program upload/download, online monitoring, forced I/O, error diagnostics
- Power Supply: Supplied via connected PLC or external adapter
Compatible Replacement & Equivalent Models
If the OHM PS-20T-R is discontinued or unavailable, the following alternatives may be considered based on compatibility and function:
- OHM PS-20T — Base model without relay output variant; verify connector compatibility
- OHM PS-28T-R — Upgraded programmer with expanded display; backward compatible with most OHM PLCs
- Generic OHM-compatible handheld programmers — Third-party units supporting OHM instruction sets (verify protocol before purchase)
- PC-based programming software + USB adapter — Modern alternative using OHM’s PC programming tool via RS-232/USB converter
Note: Always verify connector type, communication protocol, and PLC model compatibility before substituting a programming unit.
Why Choose the Original OHM PS-20T-R
- ✅ Full native compatibility with OHM PLC instruction set — no protocol translation required
- ✅ Plug-and-play connection to supported OHM controllers
- ✅ Proven reliability in industrial field environments
- ✅ Supports forced I/O, real-time monitoring, and error code readout
- ✅ Compact handheld form factor — ideal for on-site commissioning and maintenance
- ✅ No PC or software license required for basic programming tasks
Typical Applications
- Factory automation and machine control commissioning
- On-site PLC program upload/download and backup
- Maintenance diagnostics and fault code retrieval
- Forced I/O testing during system integration
- Small-to-medium manufacturing lines using OHM PLC controllers
System Compatibility
The OHM PS-20T-R is designed for use with OHM Electric PLC product lines. Confirmed or likely compatible systems include:
- OHM FP Series PLCs
- OHM compact relay-output PLC models
- Other OHM Electric controllers with matching programming port specification
Please confirm your PLC model number with our team before ordering to ensure full compatibility.
Selection Guide
Use the following criteria to determine whether the PS-20T-R is the right programmer for your application:
- Step 1 — Identify your PLC model: Confirm the OHM PLC model number on your machine.
- Step 2 — Check port type: Verify the programming port connector on your PLC matches the PS-20T-R cable.
- Step 3 — Assess task requirements: For basic on-site programming, the PS-20T-R is sufficient. For complex projects, consider PC-based software.
- Step 4 — Evaluate replacement options: If the PS-20T-R is unavailable, review the equivalent models listed above or contact us for a cross-reference.
- Step 5 — Request a quote: Contact Konmask.com with your PLC model and quantity for pricing and lead time.
Quality Assurance & Sourcing
- All units sourced from authorized distributors or verified surplus channels
- Pre-shipment inspection and functional verification available on request
- Original OHM Electric packaging and documentation where available
- Traceability records maintained for B2B procurement compliance
- Warranty and return policy available — contact us for details
How to Order
- Add the OHM PS-20T-R to your cart and proceed to checkout, or
- Contact us directly for bulk orders, lead time confirmation, or technical pre-sales support:
- 📧 Email: support@konmask.com
- 📞 Phone/WhatsApp: +0086 19859288691
- 🌐 Website: https://konmask.com
Replacement & Compatibility FAQ
Q: Can the PS-20T-R program all OHM PLCs?
A: It is designed for OHM Electric PLC systems, but compatibility varies by model. Please confirm your PLC model number before ordering.
Q: Is there a PC software alternative to the PS-20T-R?
A: Yes. OHM Electric offers PC-based programming software that can replace the handheld unit when used with an appropriate RS-232 or USB adapter.
Q: What is the difference between PS-20T and PS-20T-R?
A: The “-R” suffix typically denotes a relay output variant or a revised hardware revision. Verify with OHM Electric documentation or contact us for clarification.
Q: Can I use a third-party programmer as a replacement?
A: Some third-party programmers support OHM instruction sets, but native compatibility is not guaranteed. We recommend the original OHM unit for mission-critical applications.
Q: Do you offer warranty on the PS-20T-R?
A: Yes. Please contact us for warranty terms applicable to your order.
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Original Source: https://Konmask.com
Contact: support@konmask.com | +0086 19859288691
