Key Takeaways
- In Ludhiana the PLC is the controller for special purpose machines, press lines and test rigs.
- RB Automation is an authorised Schneider Electric partner and also supplies Rtelligent RX3U, RX8U and RM500 PLCs.
- Choose by I/O count, pulse or EtherCAT motion, communication and room to expand.
- We also build PLC control panels and supply the HMIs, drives and sensors around the PLC.
Ludhiana's machines are as varied as its products. A drilling and tapping SPM for bicycle hubs, a fastener press line with guarding interlocks and a leak test rig for tractor parts all need a controller, but each needs something different from it: fast pulse outputs, safe sequencing or accurate analogue readings. Choosing the wrong platform means extra modules, rewiring or a second controller later. RB Automation is a PLC supplier for Ludhiana, offering Schneider Electric and Rtelligent controllers from Ahmedabad and helping you settle on the right one by phone, WhatsApp and email.
Three Kinds of Ludhiana Projects
Special purpose machines
SPM builders in Focal Point and Industrial Areas A and B make drilling, tapping, riveting and assembly machines for bicycle, auto and tractor components. Typically there are a few stepper or servo axes, a bank of cylinders and sensors, and an operator screen. A PLC with built-in pulse outputs keeps such a machine simple.
Press lines
Forging, fastener and sheet metal shops at Dhandari Kalan, Gill Road and Sahnewal sequence presses, feeders and transfer units, check hydraulic pressure and enforce guard and two-hand interlocks.
Test rigs
Leak, pressure and function testers for auto and tractor parts need analogue inputs, recipes per part and a record of each result on the HMI.
Hosiery dyeing and processing units, and knitting machine rebuilders, add a fourth group, where the PLC works with VFDs and transmitters.
Schneider Electric Controllers
RB Automation is an authorised Schneider Electric partner. From the Modicon range we offer machine controllers, process controllers, motion controllers and distributed I/O, all listed on the Schneider PLC page. Operator screens come from the Harmony family, including the ET6 and GTO, and plant-wide monitoring from Citect SCADA.
Rtelligent Controllers
- RX3U: a small PLC whose pulse outputs drive stepper and servo axes directly, a good match for SPMs.
- RX8U: a compact PLC for small machines and single-station rigs.
- RM500: PLC and motion controller in one, with EtherCAT for machines that coordinate many axes.
- Card-type remote I/O and the REC1 EtherCAT coupler, to place I/O close to the sensors on a long line.
Where panel space is short, the MX3G-43C-22MT and MX3G-70C-48MT put a controller and a touch screen into one housing; see the PLC-HMI combo page.
Six Questions Before You Order
- How many signals? Count digital and analogue points, then leave spare for changes.
- How much motion? A few axes run well on pulse outputs; many synchronised axes call for EtherCAT.
- Which networks? Check what the drives, screens and any SCADA already use, such as Modbus or Ethernet.
- Machine or process? Machines want fast scans and motion; dyeing and utility systems want PID loops, alarms and trends.
- One platform? Sticking to one family across the plant keeps spares and programming manageable.
- Room to grow? Remote I/O lets you add points later without reworking the main cabinet.
If you are unsure how a PLC and a SCADA system split the work, read PLC vs SCADA.
Panels, Drives and Sensors Too
Besides the controller itself, we build PLC control panels and customised automation solutions and supply the field devices that connect to them. For the motor side, see the AC drive guide for Ludhiana and the servo drive guide for Ludhiana.
Controllers We Offer and Where They Fit in Ludhiana
| Controller | Make | Good fit |
|---|---|---|
| Modicon machine controller | Schneider Electric | OEMs and plants already standardised on Schneider |
| Modicon process controller | Schneider Electric | Dye houses and utility systems with analogue loops |
| Modicon motion controller | Schneider Electric | Coordinated multi-axis machines |
| RX3U | Rtelligent | Drilling, tapping and riveting SPMs with a few pulse axes |
| RX8U | Rtelligent | Compact machines and single-station test rigs |
| RM500 with EtherCAT | Rtelligent | Transfer and assembly machines with many axes |
| MX3G-43C-22MT, MX3G-70C-48MT | PLC and HMI combined | Small machines that need a screen and a controller in one box |
SPM, Press Line or Test Rig: Different Demands
| Aspect | Special purpose machine | Press line | Test rig |
|---|---|---|---|
| Signals that dominate | On/off sensors, valves and pulse axes | Guard and two-hand interlocks, hydraulic pressure, feeder | Pressure or flow readings, pass and reject outputs |
| What matters most | Short cycle time | Operator safety and correct order of steps | Reliable measurement and a record per part |
| Typical companions | Touch screen, stepper or servo drives | Servo roll feeder, transmitters, inverters | Recipe screen, pressure transmitters |
A Typical PLC Application in Ludhiana
Picture a typical end-of-line leak test rig for tractor or auto components. The operator loads a part and presses start; clamps close, the controller fills the part with air, lets the reading settle, then watches a pressure transmitter for a fixed time. A small drop means a pass, a larger one means a reject, and the HMI shows the figure for every part. Recipes hold the test pressure and timing for each part type. A compact PLC with analogue inputs and a touch screen, or a PLC-HMI combo, usually handles one station; a rig with several stations may justify a Modicon controller.
PLC Choices That Cause Trouble Later
- Ordering a PLC with no spare inputs or outputs, so the first modification needs a new controller.
- Too few fast outputs for the stepper or servo axes the SPM will drive.
- Not checking which protocol the existing VFDs and HMIs on the floor already speak.
- A different PLC make on each machine, which multiplies spare parts and software licences.
Information We Need to Quote a PLC
- List of digital and analogue signals
- How many motion axes, and which drives
- Network needed: Modbus, Ethernet or EtherCAT
- Whether an HMI or SCADA is wanted
- Brand preference, whether we should build the panel, and quantity
Why Ludhiana Buyers Choose RB Automation for PLCs
Because we work with both Schneider Electric, as an authorised partner, and Rtelligent, as its technical partner, we can suggest Modicon for a plant that has standardised on it, or an Rtelligent PLC with built-in motion when an OEM machine needs to stay cost-effective. Our Ahmedabad team helps you compare options before you buy. All the families we supply are on the industrial automation supplier in Ludhiana page.
Conclusion
An SPM, a press line and a test rig each ask a different question of their controller. Work out the signals, the motion, the networks and your plant standard, then share them with RB Automation for a Schneider or Rtelligent recommendation sent to Ludhiana from Ahmedabad.
Looking for a quote in Ludhiana? Contact RB Automation at +91 8511104864, WhatsApp +91 9898739737 or email contact@rbautomate.com. We call back Monday to Saturday, 10:00 am to 6:00 pm.
More Buying Guides for Ludhiana
- Stepper Motor Supplier in Ludhiana: Buying Guide
- Stepper Driver and Stepper Motor Driver Supplier in Ludhiana: Buying Guide
- Stepper Servo Drive Supplier in Ludhiana: Buying Guide
- Pressure Transmitter Supplier in Ludhiana: Buying Guide
- AC Drive and VFD Supplier in Ludhiana: Buying Guide
- Level Transmitter and Hydrostatic Level Transmitter Supplier in Ludhiana: Buying Guide
- Servo Motor Supplier in Ludhiana: Buying Guide
- Servo Drive Supplier in Ludhiana: Buying Guide
Frequently Asked Questions
Which PLC suits a special purpose machine built in Ludhiana?
For an SPM with a few stepper or servo axes, a pulse-type PLC such as the Rtelligent RX3U with an HMI works well. For many synchronised axes, the RM500 with EtherCAT is a better fit. Share the I/O and axis count to confirm.
Which PLC brands do you supply to Ludhiana?
We supply Schneider Electric Modicon controllers as an authorised partner, Rtelligent RX3U, RX8U and RM500 PLCs and motion controllers, remote I/O, the REC1 EtherCAT coupler and MX3G PLC-HMI combo units.
Is RB Automation an authorised Schneider Electric partner?
Yes. RB Automation is an authorised Schneider Electric partner. We supply Modicon PLCs, Altivar AC drives, Harmony HMIs and Citect SCADA, and customers in Ludhiana can order them from us.
Do you build PLC control panels for Ludhiana customers?
Yes. RB Automation builds PLC control panels and customised automation solutions in Ahmedabad and supplies the drives, HMIs and sensors that go with them. Share your I/O list and requirements.
What is the price of a PLC in Ludhiana?
There is no fixed price list. The price depends on the brand, I/O count, communication, expansion modules and quantity. Use the form on this page, call +91 8511104864 or email contact@rbautomate.com for a quotation.
Mr. Gaurav Patel
Managing Director, RB Automation, Ahmedabad
A visionary industrial leader, Gaurav Patel has steered RB Automation since 2013 as a trusted manufacturer, trader, and importer of premium automation and sensing solutions. Under his leadership, the company has built a strong reputation for delivering precision-engineered flow meters, pressure transmitters, proximity sensors, stepper motors, and AC drives across electrical and engineering industries nationwide. His commitment to quality, ethical business practices, and client-centric approach has earned RB Automation a vast and loyal customer base.
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- Authorised Schneider Electric partner
- Supply across Gujarat and all India