Question 1

Can you program or modify an existing, running PLC without halting production?

Accepted Answer

Yes. We regularly connect to running plant PLCs to perform online diagnostics, upload and backup code, and execute verified online modifications during scheduled windows. Before applying any logic changes, we perform offline comparisons, simulate edge cases, and verify safety interlocks to prevent unexpected halts.

Question 2

Can you integrate multiple PLCs from completely different manufacturers into one unified system?

Accepted Answer

Yes. We bridge heterogeneous architectures (e.g. Siemens, Allen-Bradley, Schneider, Mitsubishi, Omron, Delta) using standardized open industrial networks such as Modbus TCP, EtherNet/IP-to-Profinet couplers, or centralized OPC UA and MQTT servers. This provides a unified tag space for plant operators without replacing existing functioning hardware.

Question 3

Can you connect existing field PLCs to MQTT and cloud dashboards?

Accepted Answer

Yes. We install DIN-rail edge gateways that poll the existing PLC memory tables via Modbus TCP, ISO-on-TCP, or EtherNet/IP, convert the data into lightweight JSON or Sparkplug B payloads, buffer records during network outages, and publish securely over TLS 1.3 to AWS IoT, Azure, or private MQTT brokers.

Question 4

Can you build a new SCADA system on top of our existing PLC controllers?

Accepted Answer

Yes. We do not need to replace your existing control panels. We extract the existing I/O address lists and memory registers, configure native industrial drivers or OPC UA servers, and build modern high-performance SCADA graphical mimics with alarms, real-time trends, and automated shift reports.

Question 5

How do you guarantee security when enabling remote PLC access over the internet?

Accepted Answer

We use defense-in-depth OT security principles: certificate-based 256-bit encrypted VPN tunnels (WireGuard/OpenVPN), outbound-only socket connections (zero inbound open firewall ports), multi-factor authentication (MFA), role-based technician access, and an optional physical key switch on the control panel door so plant operators must physically authorize remote connections.

Question 6

Can you integrate dozens of RS485 Modbus energy meters and VFDs into our plant network?

Accepted Answer

Yes. We calculate bus loading, configure optoisolated RS485 repeaters to prevent ground loops, resolve byte/word endianness discrepancies, and poll devices cyclically to deliver clean, normalized power and speed metrics into your PLC or SCADA.

Question 7

Can you develop custom industrial desktop software and diagnostic utilities?

Accepted Answer

Yes. We build standalone C#/.NET and Python industrial applications for automated end-of-line test benches, specialized protocol converters, calibration benches, and batch recipe managers that communicate directly with hardware over serial COM ports and raw TCP/IP sockets.

Question 8

Can you modernize an obsolete automation system (e.g. PLC-5, S5, old CRT monitors)?

Accepted Answer

Yes. We execute planned retrofits using pre-wired conversion swing-arm adapters that reuse existing field terminal wiring without rewiring individual sensors. This allows complete controller and HMI cutovers to be completed over a single weekend outage.

Question 9

Can you build a complete turnkey water treatment or sewage plant automation system?

Accepted Answer

Yes. We design and deliver complete water automation systems from P&ID review and electrical schematics to control panel fabrication, PLC ladder logic, automated flow-paced chemical dosing, differential-pressure filter backwash sequencing, and central SCADA control rooms.

Question 10

Can you troubleshoot elusive, intermittent PLC communication dropouts on our site?

Accepted Answer

Yes. Our engineers deploy specialized diagnostic gear including digital storage oscilloscopes, serial bus analyzers, and industrial Ethernet packet sniffers (Wireshark) to measure RS485 differential signal voltages, inspect grounding loops, eliminate reflections, and resolve bus faults definitively.