Integrating Remote Monitoring into Roll Forming Machines (Ewon, VPN & Cloud Guide)

Engineering guide to integrating remote monitoring in roll forming machines using Ewon, VPN and cloud systems covering security, PLC access and diagnostics

Integrating Remote Monitoring (Ewon, VPN, Cloud)

Secure Remote Access & Real-Time Diagnostics for Roll Forming Machines

Modern roll forming operations demand:

Faster fault diagnosis
Reduced downtime
Remote PLC access
Real-time drive monitoring
Production data visibility
Multi-site machine oversight

Remote monitoring systems — using industrial routers such as Ewon, secure VPN gateways, or cloud-based IoT platforms — allow engineers to access:

PLC programs
VFD diagnostics
HMI alarms
I/O status
Encoder feedback
Production counters

However, improper remote integration can create:

Cybersecurity risks
Electrical noise problems
Network instability
Unauthorized access
Safety vulnerabilities

This guide explains how to integrate remote monitoring correctly into roll forming and coil processing machines.

1️⃣ Why Remote Monitoring Is Valuable in Roll Forming

Roll forming machines often operate:

In different countries
In remote industrial zones
With limited on-site technical expertise

Remote monitoring allows:

Faster troubleshooting
Reduced service travel cost
Immediate VFD fault review
Live PLC diagnostics
Parameter adjustment
Production performance tracking

High-speed roofing lines especially benefit from remote diagnostics.

2️⃣ Remote Monitoring Architecture Overview

Basic structure:

PLC / VFD → Industrial Router → Secure VPN Tunnel → Remote Engineer

Or:

PLC / Sensors → Edge Device → Cloud Platform → Dashboard

Three common approaches:

VPN router (e.g., Ewon-style solution)
On-premises secure VPN gateway
Cloud IoT data integration

Selection depends on security and complexity requirements.

3️⃣ Hardware Integration (Industrial Router)

Industrial remote access routers typically require:

24VDC power
Ethernet connection to PLC
Internet connection (wired or cellular)
Secure configuration

Mount router inside control cabinet.

Provide dedicated 24V supply with proper surge protection.

4️⃣ Electrical Integration Considerations

Remote router installation must not:

Share power with high-noise devices
Be grounded improperly
Interfere with control voltage stability

Use:

Shielded Ethernet cable
Separate routing from motor cables
Proper cabinet earthing

Noise can corrupt communication.

5️⃣ PLC Integration Strategy

PLC must support:

Ethernet communication
Remote programming access
Secure authentication

Configure:

Static IP
Defined communication port
Access permissions

Avoid exposing PLC directly to internet.

Always use VPN tunnel.

6️⃣ VFD & Drive Remote Monitoring

Modern drives allow monitoring of:

Motor current
Torque
Speed
Fault codes
DC bus voltage
Temperature

Integration via:

Modbus TCP
Ethernet/IP
Profinet

Remote visibility into drive parameters speeds troubleshooting.

7️⃣ Data Collection & Cloud Dashboards

Cloud platforms can collect:

Production count
Machine uptime
Fault frequency
Energy consumption
Temperature trends

Benefits:

Predictive maintenance
Production optimization
Multi-factory comparison

Cloud integration requires secure firewall configuration.

8️⃣ Cybersecurity Requirements

Remote monitoring introduces cybersecurity risk.

Best practices:

Use VPN-based secure tunnel
Enable two-factor authentication
Disable unused ports
Use strong password policy
Isolate machine network from corporate network
Install firewall rules

Never expose PLC directly to public IP.

9️⃣ Network Segmentation

Recommended architecture:

Machine Network (PLC, Drives, HMI)
↓
Industrial Router
↓
Secure VPN Tunnel
↓
Remote Access

Machine network must remain isolated from corporate network to reduce attack surface.

🔟 Remote Access Safety Rules

Remote engineer must NOT:

Bypass safety circuits
Override hardware interlocks
Force outputs without on-site supervision

Always implement:

Remote session logging
Access control levels
Permission-based access

Safety remains hardware-controlled.

1️⃣1️⃣ Monitoring Electrical Stability Remotely

Remote system can monitor:

Voltage levels
Phase imbalance (if power meter installed)
Drive fault history
24V control voltage status

Early detection prevents downtime.

1️⃣2️⃣ Remote Encoder & Flying Shear Diagnostics

Remote access allows:

Review of high-speed counter values
Encoder pulse consistency
Servo following error
Shear synchronization timing

Remote diagnostics reduce costly travel for flying shear faults.

1️⃣3️⃣ Internet Connection Considerations

Stable connection required.

Options:

Wired Ethernet
Industrial cellular router (4G/5G)
Dedicated broadband

Avoid unstable consumer-grade routers.

Industrial environments require industrial hardware.

1️⃣4️⃣ Commissioning Remote Access

Steps:

Install hardware
Configure VPN
Test PLC connectivity
Verify drive access
Simulate remote login
Confirm firewall rules
Document credentials securely

Never leave default credentials active.

1️⃣5️⃣ Common Mistakes in Remote Integration

Connecting PLC directly to public internet
No VPN encryption
No user access control
Router powered from unstable source
No updated network documentation
No access logs maintained

Improper setup creates serious risk.

1️⃣6️⃣ Benefits of Proper Integration

Reduced downtime
Faster fault identification
Improved parameter tuning
Data-driven production analysis
Remote firmware updates
Better after-sales support
Increased machine resale value

Remote capability enhances long-term value.

1️⃣7️⃣ When Remote Monitoring Is Not Recommended

Avoid remote integration if:

No stable internet
Poor cybersecurity environment
Safety procedures not defined
Unqualified remote access management

Security must be prioritized.

1️⃣8️⃣ Cost Considerations

Typical cost includes:

Industrial router
Configuration time
Firewall setup
VPN licensing
Optional cloud platform subscription

Compared to international service travel, remote monitoring is cost-effective.

1️⃣9️⃣ Future-Proofing Strategy

Design remote system to allow:

Future PLC upgrades
Additional machine connections
Energy monitoring integration
Predictive maintenance modules

Scalable architecture prevents future redesign.

2️⃣0️⃣ Buyer Strategy (30%)

When purchasing a roll forming machine with remote monitoring, verify:

VPN encryption used
No direct public IP exposure
User access control implemented
Firewall configuration documented
Remote access logging active
Secure credential management
PLC program backup stored
Safety circuits independent of remote control

Red flags:

“PLC connected directly to internet.”
“Default passwords unchanged.”
“No network documentation.”

Proper remote integration adds value — improper integration adds risk.

6 Frequently Asked Questions

1) Is remote access safe?

Yes, if VPN-secured and properly configured.

2) Can remote engineer change PLC logic?

Yes, with proper permissions.

3) Does remote monitoring affect machine performance?

No, if network isolated properly.

4) Can I monitor drive faults remotely?

Yes, via network-connected VFD.

5) Is cloud integration necessary?

Optional — depends on data needs.

6) Should safety circuits be remotely bypassed?

Never.

Final Engineering Summary

Integrating remote monitoring into roll forming machines requires:

Secure VPN-based architecture
Proper electrical integration
Network segmentation
Shielded communication wiring
Stable 24V supply
Controlled access permissions
Documented configuration

Remote monitoring improves uptime, diagnostic speed, and operational visibility — but only when implemented with strong cybersecurity and electrical discipline.

In modern roll forming operations, remote diagnostics are becoming standard for high-value production lines.