PLC programming

Siemens PLC programming, from a single station to a complete line.

We integrate PLCs, drives, distributed I/O, and safety into standardized, reusable, diagnosable architectures. Same team from commissioning to long-term support.

Technical stack

PLC families

S7-1500 for full lines, S7-1200 for compact machines, S7-1500T when advanced axis coordination is needed. We also retrofit S7-300/400 already in the field.

S7-1200 · S7-1500 · S7-1500T · S7-300/400 · TIA Portal

Motion control

Servo drives and electronic cams: gearing, axis synchronization, and complex kinematics up to dozens of coordinated axes.

Sinamics V90 · S210 · S220 · S120 · virtual camming

Distributed I/O

Decentralized architectures with built-in diagnostics, hot-swap support, and redundant configurations where the plant requires them.

ET200SP · ET200MP · ET200PRO · Profinet · Profibus

Energy diagnostics

Meters integrated with the PLC: per-machine load readings and consumption baselines, the technical basis for incentive reporting.

PAC3200 · PAC3220 · PAC3225 · energy monitoring

Industrial networks

Data exchange to SCADA, MES, and ERP, OT network segmentation, and traffic-priority management.

Profinet · Profibus · OPC UA · MQTT

Functional safety

Fail-safe PLCs and risk assessment, integrated with laser scanners and certified safety devices.

S7-1500F · ISO 13849-1/2 · IEC 62061

Why OEMs and plant managers choose us

Reusable standards

Architectures designed to be copied from line to line: on the second project, development time drops 30-50% compared to an ad-hoc implementation.

Native diagnostics

Alarms, events, and KPIs are designed from the start to be read by SCADA and MES. No flags bolted on later that maintenance can't interpret.

Documentation that lasts

Network diagrams, I/O maps, shared naming conventions. The next programmer — internal or ours — opens the project and gets oriented in a day.

Validation on real plants

We program on lines in production, not just on test benches. We commission alongside the operators: what doesn't work on the floor doesn't ship via remote support.

SCADA and MES

Discover the ARIA platform

Line supervision, OEE, batch traceability, alarms, and diagnostics in a single interface.

Robotics

Go to industrial robotics

Fanuc, KUKA, and ABB robot cells integrated with the PLC over industrial protocols. Safety and machine vision included.

Teleservice

See related services

Secure remote support on PLC, SCADA, MES, and HMI. When a line stops, minutes matter.

Frequently asked questions

Do you only work on Siemens PLCs?

Siemens (TIA Portal, S7-1200/1500, Sinamics) is the stack we work on continuously, so it's the one where we can commit to firm timing. We do regularly work on mixed installations, though, because almost no factory is single-brand. The integration work — making different controllers talk and lifting data to a higher layer — runs through standard protocols like OPC UA, Modbus, and Profinet. Not through the PLC badge.

Can you work on a program someone else wrote?

Yes, and it's a significant share of the work. The first phase is understanding what's there: reading the program, reconstructing the logic, and saying what can be kept and what is better rewritten. If the code has no comments or the documentation doesn't match what's installed — it often doesn't — that reconstruction is a planned phase. Not a surprise discovered halfway.

How long does commissioning take?

It depends on how closely the field matches the design. On a new machine the variable is mechanics; on a retrofit it's whatever turns up once the cabinet is open. What can be fixed is the shutdown window: everything that can be prepared and tested beforehand — logic, recipes, interface — should arrive on site already working. Only the work that can only happen there is left on the floor.

Does the program stay modifiable by us or another supplier?

Yes, and it's a condition worth putting in writing before starting, with any supplier: commented program, sources handed over, documentation updated to what was installed. A program only its author can maintain is a constraint you pay for at the first format change or the first out-of-hours failure.

Do you handle safety and motion as well?

Yes, and they usually can't be separated from the rest: functional safety (risk assessment, components, ISO 13849, verification at commissioning) has to be designed alongside machine logic. And multi-axis motion — virtual cams, gearing, synchronised axes — is where cycle precision is decided. Treating them as downstream activities is the fastest way to have to reopen the program.

How do you get PLC data to a MES, SCADA, or ERP?

The PLC stays the process source of truth: the upper layer observes and records, it doesn't bypass. The link runs over OPC UA or S7 to the supervisory layer, and from there via API to MES or ERP. Worth deciding while the logic is being written, because adding data collection later means going back into the program.
Let's talk

Got a project in mind?

Describe the line and the problem on a 30-minute technical call: we tell you straight away whether it's in our wheelhouse. We typically reply within 24 hours. From the first call to commissioning, you speak to the same person.

Let's talk about your project

Or:explore the ARIA platformhey@ioma.ai