PLCscope – Portable Allen-Bradley PLC Tag Monitor
Handheld Rockwell PLC diagnostic tool
Allen-Bradley PLC troubleshooting without Studio 5000
Portable PLC tag monitor for field engineers
Plug in. Browse tags. Solve problems.
* Not affiliated with Rockwell Automation. For diagnostics only.
Faster troubleshooting. Zero laptop. Total control.
PLCscope gives controls engineers and technicians instant diagnostic visibility into Allen-Bradley Logix PLCs—using EtherNet/IP® standards. Designed for the field, not a programming alternative.
EtherNet/IP® Standard Connectivity
Compatible with Allen-Bradley Logix PLCs using EtherNet/IP® standards. No reverse engineering, no Studio 5000 files required.
Tag Browser & Live Data Table
Browse and monitor tags for diagnostics—field tool, not a programming alternative.
Safe Writes & Logging
Read-only by default for safety. Logging and export for diagnostics. Not a replacement for licensed programming software.
Built for the field. Ready for the future.
For controls engineers, maintenance teams, OEMs, and training labs. Think of it as the Fluke meter for Allen-Bradley Logix PLCs—simple, safe, portable, and ready for the field. Not affiliated with Rockwell Automation. For diagnostics only.
Profiles for Every Machine
Save and reload tag sets for different PLCs, machines, or projects. Instantly switch between jobs in the field.
On-Device Networking
Configure static IP or DHCP directly from the touchscreen. Always know where you’re connected—no laptop or IT needed.
Portable & Rugged
Runs on Seeed reTerminal (Raspberry Pi CM4, 5″ touchscreen), with optional battery pack for true field use.
Safe by Default
Read-only mode is default for safety. All writes require confirmation, so you never risk an accidental change.
Logging & Export
Capture snapshots or continuous trends, export to CSV/JSON, and transfer via USB for easy reporting.
Protocols (Roadmap)
Modbus TCP, Siemens S7, OPC UA, and BACnet/IP on the roadmap—broadening interoperability while keeping setup simple.
How to use
Three quick steps. Under a minute to first data.
Supported Devices
PLCscope communicates over Ethernet only. Serial, DH+, and other legacy fieldbuses are not supported.
Rockwell / Allen‑Bradley
| Family | Models / Series | Access |
|---|---|---|
| ControlLogix (1756) | 1756‑L6x, L7x, L8x controllers | Full |
| CompactLogix | 1769‑L2x / L3x, L23, L24; 5069‑L3x series | Full |
| GuardLogix | Safety controllers (same family as Control/CompactLogix) | Full |
| SoftLogix 5800 | PC‑based controller | Full |
| Micro800 family | Micro810, Micro820, Micro850, Micro870 | Full |
| PowerFlex drives | 520 / 750 series | Assembly‑level |
| Ethernet adapters & comm modules | 1756‑EN2T / EN3T, 1734‑AENTR (Point I/O), 5069‑ENx | Assembly‑level |
Siemens
Roadmap| Family | Models / Series | Access |
|---|---|---|
| S7‑1200 / S7‑1500 | With integrated Ethernet | Full |
| S7‑300 / S7‑400 | With CP343‑1 / CP443‑1 Ethernet modules | Full |
| S7‑200 | Requires CP 243‑1 Ethernet gateway | Partial |
| LOGO! PLCs | Some models over Ethernet | Partial |
| Drives & I/O modules | If configured for S7 protocol | Partial |
Protocols
RoadmapRoadmap: Ethernet protocol support for broader ecosystems.
| Protocol | Device Types | Access | Status |
|---|---|---|---|
| Allen-Bradley Logix PLCs (EtherNet/IP®) | Compatible with CompactLogix and ControlLogix families using EtherNet/IP® standards. Initial firmware targets common Logix controllers; expanded model coverage will follow. Not affiliated with Rockwell Automation. EtherNet/IP® is a trademark of ODVA, Inc. | Full | Roadmap |
| Seeed reTerminal | Raspberry Pi CM4-based touchscreen device. PLCscope runs natively for a portable, rugged field diagnostic tool. | Full | Roadmap |
| OPC UA | Servers on PLCs, gateways, SCADA | Node browsing & subscriptions | Roadmap |
| BACnet/IP | Building controllers, VFDs, I/O | Object/property polling | Roadmap |
Frequently asked questions
If you have anything else you want to ask, reach out to us.
Plug in. Browse tags. Solve problems.
PLCscope gives you instant, safe access to live Rockwell PLC data—no laptop, no Studio 5000, no hassle. Preorder now to reserve your unit from the first production run.
PLCscope Pricing — All Features, No Gating
Choose your device bundle. All software features included in every tier. No subscriptions, no feature gating, no hidden costs.
Starter
Technician Edition
For individual technicians and field engineers. Full PLCscope software (all features included — no gating).
- 1x PLCscope handheld device
- Full PLCscope software (all features included — no gating)
- Native Allen-Bradley / Rockwell PLC tag browsing
- Read-only default mode (safety) + write confirmation
- Live data table & tag search
- Snapshot & CSV/JSON export
- 90-day standard warranty
- Best for: Individual technicians & field engineers
- Savings: Save $200 with preorder
Pro
Integrator Bundle
Bundle for integrators and OEMs. Full PLCscope software (all features included — no gating).
- 3x PLCscope handheld devices (bundle savings ~$600)
- Full PLCscope software (all features included — no gating)
- Priority support (email & phone)
- 6-month warranty
- Best for: System integrators, OEMs, small automation teams
- Savings: Save ~$600 with preorder
Distributor
Bulk/Reseller Tier
For distributors, resellers, and large-scale deployments. Full PLCscope software (all features included — no gating).
- 10+ PLCscope devices (bulk discount pricing)
- Full PLCscope software (all features included — no gating)
- Extended warranty options (up to 1 year)
- Dedicated account manager
- Team onboarding session (virtual)
- Optional software-only licenses available as add-on
- Best for: Distributors, resellers, and large-scale customers
- Savings: Custom bulk discounts
Need software-only licenses?
Software-only licenses are available as an add-on for plant laptops and large deployments. Contact us for details.
Allen-Bradley and Rockwell Automation are trademarks of Rockwell Automation, Inc. PLCscope is not affiliated with or endorsed by Rockwell Automation.
Contact
Have questions about PLCscope, bulk orders, or distribution? Reach out and we'll get back within 1–2 business days.
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