Learn Why URScript Is the Key to Easy and Flexible Configuration of Universal Robots Collaborative Robots
Programming Universal Robots Industrial Robots in URScript
URScript, or Universal Robots Script, is a dedicated language used in Universal Robots collaborative robots. Its scripting nature and simple syntax enable fast and intuitive motion configuration, making it a strong choice in environments where safe operation alongside people and easy adaptation to changing production processes are important.
Why URScript?
- Simple script-based form: URScript resembles high-level languages such as Python, making it easier to introduce control logic even for less experienced programmers.
- Collaborative robots: Universal Robots is known for cobots capable of working safely near people, and URScript makes it possible to add instructions that respond to changing environmental conditions, such as detecting contact with a person.
- Flexible integration: The ability to connect to force sensors, cameras and IoT systems makes URScript suitable for both simple and advanced applications.
How Can NexaRob Help?
- Needs analysis: We define the cobot process and working environment, determining whether the priority is safety, speed, or versatility.
- Code Creation and Optimization: We design URScript scripts, test them in a simulation environment, and then fine-tune them at the actual workstation.
- Team training: With our support, operators can learn the basics of writing URScript, enabling them to respond quickly to line changes without calling external specialists for every adjustment.
See what sets URScript apart and why Universal Robots cobots are so highly valued across many industries
Key Functions and Application Examples in URScript
Although every robotics language is used to control motion and logic, URScript emphasizes human collaboration and ease of implementation. Below we present several of its distinctive features and examples of industries in which UR robots gain an advantage:
Cooperation and Safety
Easy Force and Speed Limiting: URScript makes it easy to set robot operating parameters so that force is minimized in the event of a collision with a person.
Application: Industries requiring frequent human-robot interaction, such as small-component assembly and packaging in smaller facilities.
Flexible Motion Paths
Ability to define linear movements (movel) or point-oriented movements (movej) in a simple scripting style.
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Application: Simple pick & place operations, low-volume palletizing, as well as tasks based on manual trajectory "teaching" (so-called freedrive).
Rapid Adaptation to New Tasks
URScript allows short functions, for example for gripper manipulation, to be created and called at different points in the process.
Application: Lines where the product range changes regularly and motion sequences must be reprogrammed frequently.
Integration with sensors and vision systems
URScript can receive data from a camera or force sensor and modify motion parameters on the fly.
Application: Delicate assembly in electronics and medical applications, sorting objects by position or shape.
Stop Functions and Emergency Shutdowns
Built-in commands enable robot operation to be interrupted quickly if a safety zone is breached or permissible force is exceeded.
Application: Applications where immediate stopping is essential in the event of contact with a person or an unexpected object.
URScript provides UR robots a user-friendly and agile platform for defining movements, even in processes where people and machines share the same workstation. NexaRob helps companies prepare applications based on URScript from initial trajectory sketches and integration tests to final deployment in a production environment.
Explore different ways to create code for Universal Robots robots and choose the solution that best fits your process
Main Programming Modes and Methods in URScript
Online, Offline, Freedrive, and More
Programming Universal Robots cobots in URScript can be performed in several modes depending on the needs and competencies of your team. At NexaRob, we help select the right method so implementation and code maintenance remain fast, safe, and flexible. The key modes are outlined below:
Teach Pendant (Online Programming)
- Direct control: The operator uses the robot's touch panel (pendant) to set the trajectory point by point and define URScript logic "live".
- Quick Corrections on the Line: An ideal solution for minor changes, corrections can be introduced without requiring lengthy downtime.
- Limitations: With more complex sequences, such as those involving many motion points, this can be time-consuming and requires care to avoid introducing unwanted errors.
Offline Programming (Simulation Software)
- Working on a computer: URScript code and motion plans are created in a virtual environment before being transferred to the actual cobot.
- Time savings: The line can continue operating while engineers prepare a new version of the code away from the production floor. After uploading it to the robot, only minor adjustments are usually needed before production can resume.
- Application: High-load lines where stopping a cobot for extended modifications is difficult to accept.
Freedrive and Teaching by Demonstration
- Combining methods: In Freedrive mode, the operator manually guides the cobot arm to target points during teaching, while URScript stores these positions and creates a motion trajectory from them.
- Continuous improvement: A recorded path can later be adjusted offline or using the Teach Pendant, refining parameters such as speed or smooth transitions.
Remote Online Programming, Network-Based Control
- Remote access: If the network infrastructure is properly secured, the NexaRob team or your engineers can log in to the UR controller and make changes to URScript code remotely.
- Expert support: Fast response to errors or motion optimization without requiring physical presence at the cobot.
Programming methods in URScript should be flexible, as several approaches are often combined within a single factory. Teach Pendant works well for quick adjustments on the line, Freedrive makes it easier to "teach" trajectories, while offline simulation tools help refine complex applications without lengthy downtime cobot. In the following sections, we will describe how URScript works with vision systems and other devices so that the Universal robot Robots became increasingly intelligent and useful.
Learn How Universal Robots Cobots Can Capture Images and Sensor Data to Respond Intelligently to Changing Process Conditions
Integration with Vision Systems and Sensors in URScript Code
Universal Robots robots controlled through URScript are known for easy collaboration with people. Beyond human-robot interaction, however, they can also use information from cameras, force sensors, and other devices. Such integration allows the cobot to continuously adapt its motion to the situation.
Vision Systems
- Protocols and libraries: URScript can receive data from 2D/3D cameras, enabling dynamic path correction during pick & place, sorting, or quality control operations.
- Object recognition: The camera identifies the position and shape of a component, while the robot calculates offsets, which is useful when objects are arranged randomly.
Force and Torque Sensors
- Pressure Control: In applications requiring precise contact (e.g. assembly of delicate components), URScript can check sensor values and automatically reduce speed or stop movement to prevent damage.
- Collision Detection: The robot immediately triggers an emergency action when the torque on an axis exceeds the safe level.
Digital and Analog Input/Output Handling
- Integrated control: During operation, the robot can activate grippers, valves, or feeders based on data from URScript.
- Analog Data: Useful in processes involving liquid dispensing or temperature or pressure control. The appropriate logic only needs to be added to the script.
Application Examples
- Food industry: Gentle fruit handling and placement on conveyor belts, with a camera verifying quality or size.
- Electronics: Microchip assembly, where the robot adjusts force while inserting sensitive components onto PCBs.
- Logistics: Sorting parcels using cameras to scan codes, allowing URScript to quickly assign an object to the appropriate warehouse zone.
Integration Universal Robots robots with vision systems and sensors, controlled in code URScript - opens flexible and intelligent possibilities for your production line. NexaRob supports companies in selecting the right equipment, writing code, and conducting integration tests so that cobots UR could interact effectively with their surroundings and with people while ensuring process safety and efficiency.
A Practical Example Showing How URScript Helps Maintain Precision and Safety When Assembling Sensitive Electronic Components
Case Study: Delicate Assembly in the Electronics Industry
In the electronics industry, where components can be exceptionally fragile, not only precision matters, but also appropriate limitation of force and movement speed. Below we show how code written in URScript can make these demanding tasks easier:
Context and Key Challenges
- Delicate components: Sensors, integrated circuits, or sensitive connectors that can easily be damaged by excessive pressure.
- Product range variability: Assembly of different product variants on a single line, requiring the robot to switch rapidly between procedures.
- Working near the operator: A cobot must safely share its workspace with a person who supplies successive components.
Force and Torque Control
- URScript can read values from the robot's built-in sensors, so if resistance becomes too high, the system automatically stops the movement, preventing damage to the part.
- Pressure verification: For each component type, a maximum axis torque can be defined, above which the cobot stops the operation.
Parameterized URScript Modules
- Dividing code into assembly functions such as InsertConnector and FastenScrew, where each function makes it easy to change speed or pressing depth depending on the product variant.
- Quick changeover: When a new series of components appears, it is enough to edit the appropriate values in the script, such as pressing force or motion angles.
Results and Benefits
- Reduced Damage: The use of controlled pressure and torque monitoring minimized the number of incorrectly assembled parts.
- 20% increase in productivity: Thanks to smooth integration between offline tools and the Teach Pendant, switching to a new product variant became faster.
- Safe Collaboration: The robot and operator worked effectively side by side without exposing the person to the risk of collision or entrapment.
This case study shows how URScript can help robots Universal Robots in the precise and safe assembly of delicate components. NexaRob provided full support, from requirements analysis through code writing and testing to operator training, allowing the customer to accelerate the process and improve production quality.
How to maintain high efficiency and safety when operating Universal Robots cobots in URScript?
Code Optimization and Safety Procedures for UR Robots
After creating a URScript application, it is worth ensuring long-term maintenance and continuous improvement. At NexaRob, we recommend a number of practices that help avoid downtime, increase efficiency, and ensure operator safety:
Cycle Time and Motion Path Analysis
- Monitoring Statistics: The robot can report the number of completed cycles and collect data on downtime or errors, making it easier to identify bottlenecks.
- Parameter Adjustment: It is often possible to shorten travel distance or increase speed while maintaining full compliance with safety standards.
Code Structure and Readability
- Refactoring: Removing repeated fragments by creating functions and modules makes modifications easier and prevents errors.
- Consistent naming: Clear variable and procedure names, such as pickOffset and safeMove, help operators and engineers understand script logic quickly.
Safety procedures and emergency systems
- Emergency stop conditions: URScript can immediately trigger a stop when the robot detects an unexpected collision or receives a signal from safety light curtains.
- Zone Limitation: Areas can be defined within the robot workspace where the cobot's speed and force are automatically reduced to protect people and equipment.
Updates and scalability
- New firmware versions: Universal Robots occasionally releases controller improvements. It is worth evaluating whether newer functions will benefit your process.
- Workstation Expansion: If you want to add a second cobot or a new gripper, minor changes to URScript are usually sufficient, without rewriting the entire application.
Optimization and careful attention to safety procedures form the foundation of long-term operation UR cobots. NexaRob can help improve code, conduct regular tests, and adapt applications to changing facility requirements. This gives your team a stable and efficient working environment with collaborative robots.
Resolve Your Questions About Creating and Maintaining URScript Applications and Learn About Our Support Model
Frequently Asked Questions
Below we answer frequently asked questions about programming Universal Robots in URScript. If you do not find the explanation you need here, contact NexaRob. We will be happy to discuss the details of your project and present tailored solution proposals.
No. URScript has a simple scripting form similar to popular high-level languages. People with a basic understanding of control logic or automation usually learn its syntax quickly. NexaRob also offers training to accelerate your team's implementation process.
UR cobots are used in electronics assembly, the food sector (packaging), logistics (sorting, palletizing), and applications requiring human-robot cooperation, for example on small production lines.
Using a dedicated offline environment, such as a PC version of PolyScope, or UR simulators is recommended, although scripts can also be created directly on the robot panel (Teach Pendant). Simulation reduces downtime by allowing movements to be developed in a dry-run environment.
URScript can receive data from cameras, including 2D and 3D systems, and sensors such as force sensors. The code can then include instructions that correct motion on the fly to match the position of a part or gently apply pressure to a specified surface.
Yes. They were designed as cobots, or collaborative robots, which means they have built-in force and speed limitation mechanisms. In URScript, you can also define additional emergency procedures, such as immediate stopping when a collision is detected.
It depends on production variability. If you have a diverse product range, more frequent updates will be necessary. If the process is stable, occasional changes are sufficient. A modular coding style and the use of a version repository such as Git make this easier.
We work with a global network of suppliers, including Universal Robots. We provide comprehensive implementations, from selecting the cobot model and accessories, through preparing the application in URScript, to service support and further system development.
Usually, minor changes and adaptation of URScript logic to new workstations are sufficient. Thanks to the similar architecture of UR controllers, many modules and functions can be transferred from one project to another, reducing implementation time.
Contact us by email or phone. NexaRob will be happy to advise you on equipment selection, write and optimize URScript code, and provide training for your team.
Do you have more questions?
Contact NexaRob. Our specialists are available to support URScript programming, hardware solution customization and long-term service care. We will be happy to discuss your company's needs and propose a flexible, scalable solution using Universal Robots cobots.
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