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Maple Systems PLC & HMI Programmer – Automated Filling Machine We are looking for an experienced PLC / Industrial Automation Programmer to program and configure a Maple Systems PLC/HMI control system for an automated production filling machine. Hardware The system will use: Maple Systems HMC4043A-M Maple Systems HMC3-M1210Y0201-V2 Digital industrial scale with RS-232 communication Filling valve/nozzle controlled by the PLC Start button Additional sensors and I/O as required Main Machine Operation The filling machine will operate based on the weight received from the scale. The PLC must continuously read the live weight from the scale through RS-232. The basic filling sequence will be: Operator places a container on the scale. Operator presses the Start button. PLC verifies that the scale is communicating and receives the current weight. The system tares or records the starting weight as required. PLC activates the filling valve/nozzle. Product begins filling into the container. PLC continuously monitors the weight through the RS-232 connection. When the programmed target weight is reached, the PLC closes the filling valve/nozzle. The system indicates that the fill cycle is complete and becomes ready for the next container. The control logic may also need to compensate for product still flowing after the valve closes so that the final container weight is as accurate as possible. HMI Requirements The HMI should provide a simple operator interface that includes: Current/live scale weight Target fill weight Start control Stop control Tare function Filling status Fill complete indication Scale communication status Alarm/error messages Ability to adjust filling parameters Manual controls for setup and troubleshooting We would also like the system designed so additional machine functions can be added later. Scope of Work The freelancer will be responsible for: Programming the Maple Systems PLC Developing the HMI screens Configuring RS-232 communication with the scale Parsing the scale's serial data correctly Programming the automatic filling sequence Programming digital inputs and outputs Programming the filling valve/nozzle control Creating alarms and fault handling Testing the PLC/HMI communication Assisting with commissioning and troubleshooting Providing the complete editable PLC and HMI project/source files when the project is completed We can provide the scale manufacturer/model and RS-232 communication protocol. Required Experience We are specifically looking for someone with experience in: Maple Systems PLC/HMI programming MAPware-7000 HMC Series controllers PLC programming HMI development RS-232 / serial communications Reading weighing scales or other serial devices from a PLC Industrial machine automation Solenoid valves, sensors, relays, and machine I/O Filling, batching, weighing, or packaging equipment Experience programming weight-based filling or batching systems is strongly preferred. When Applying Please describe your experience with: Maple Systems HMC controllers MAPware-7000 RS-232 communication Reading weight data from industrial scales Filling, batching, weighing, or packaging machinery If possible, please provide examples of similar PLC/HMI projects you have completed. This is an initial filling-machine project, but we are looking for an automation programmer who may be able to assist us with additional production equipment projects in the future.
Project ID: 40711527
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56 freelancers are bidding on average $487 USD for this job

Drawing from my 7+ years of experience as a Mechanical Design Engineer, I am confident in my ability to provide you with first-rate PLC programming and HMI configuration services. My explosive knowledge and proficiencies in SolidWorks, Fusion 360, and other CAD tools will enable the creation of well-optimized designs necessary for your project. My mastery in translating concepts into functional models and assemblies aligns perfectly with your project's requirement for designing manufacturable components for an automated filling machine. I guarantee precise and cost-effectively designed projects. My competence in Industrial Automation is one of my distinguished attributes that makes me an excellent fit for your Maple Systems PLC/HMI program. Having successfully programmed various industrial machines and equipment alongside a deep-rooted experience with Maple System HMC Series controllers and MAPware-7000 software, I am more than comfortable taking up the task at hand.
$250 USD in 1 day
8.1
8.1

With my extensive background in mechanical and electrical engineering, I am confident that I am the perfect fit for your Maple Systems PLC/HMI programming project. I have over twelve years of experience in this field which includes working on various automation projects such as design and development of filling, batching, weighing, and packaging machinery. Specifically, I have hands-on expertise with Maple Systems HMC controllers, MAPware-7000, RS-232 communication, and reading weight data from industrial scales - all the skills crucial to ensure a successful implementation of the PLC configuration for your automated filling machine. Flexibility is key in the industrial automation space, and my experience covers that aspect definitively. I have a proven ability to design systems that not only meet current requirements but can also adapt as new needs emerge in the future. I understand the importance of accurate measurements and control in weight-based applications like yours and I will ensure that your system compensates for any product flow after valve closure so that the container's weight remains precise right till the end.
$850 USD in 7 days
6.6
6.6

HI, KINDLY READ THROUGH MY PROPOSAL I will program and configure the Maple Systems HMC4043A-M / HMC3 system for your automated weight-based filling machine, delivering accurate RS-232 scale communication, precise fill control with overshoot compensation, and a clean operator HMI. MY APPROACH ✅ Full Maple Systems PLC logic in MAPware-7000 for the complete fill sequence ✅ Reliable RS-232 scale data parsing and live weight monitoring ✅ Overshoot compensation for accurate final container weight ✅ Simple, clear HMI screens with live weight, targets, status and alarms ✅ Expandable design ready for future machine functions DELIVERABLES - Complete editable PLC and HMI project files - Tested filling sequence with scale communication - Commissioning and troubleshooting support QUESTIONS 1. Scale manufacturer, model and exact RS-232 protocol/data format? 2. Target fill weight range and required accuracy? 3. Any existing I/O list or additional sensors already defined? Ready to start as soon as the scale protocol and basic I/O details are shared.
$250 USD in 5 days
6.5
6.5

With over a decade of experience in the automation industry, I have extensive knowledge in PLC programming, including those from leading brands like Mitsubishi, Rockwell, Siemens, and Toyopuc. Hence, working on a Maple Systems PLC/HMI project such as yours will be well within my skill set. I'm confident that my proficiency in using Gx Works, Studio 5000, Tia Portal, and PcWin will enable me to efficiently program your automated filling So on top of the PLC programming, I can also address your electrical drawing requirements for the project. Moreover, I have hands-on experience with multiple communication protocols including Modbus, RS232, RS485, TCP IP, Socket Communication, Ethernet IP, CC-Link, and Profinet. Hence configuring RS-232 communication with the scale and parsing the serial data to accurately read the weight will be a seamless task for me. I have prior experience working with filling machines as well as weighing scales; therefore understanding the intricacies involved is not new to me. For example I could previously design and develop fill level controllers uning pnuematic valves; The experience extends to include weighing or packaging machinery which syncs seamlessly with this project's requirements. Commitment and delivering beyond expectations are two values my work revolves around; they shall keep guiding my way through this assignment. Trust me for timely completion of this project while ensuring its quality execution. Looking forward to working together!
$500 USD in 7 days
6.4
6.4

⭐⭐⭐⭐⭐ Hi, I can develop the Maple Systems PLC/HMI application around your weight-based filling process, with the scale communication and filling accuracy treated as the core of the design rather than simply programming the basic I/O sequence. I would configure the HMC controller in MAPware-7000, establish reliable RS-232 communication with the industrial scale, parse and validate the incoming weight data, and build the automatic sequence around tare/start/fill/target detection/valve shutoff and cycle completion. I’d also implement the practical machine details: communication timeouts, invalid/stale weight detection, safe stop behavior, interlocks, alarms, manual/service controls and configurable filling parameters. For accuracy, the logic can incorporate measured product/valve overrun so the shutoff point can be tuned to consistently approach the target weight. The HMI would provide live weight, target weight, tare, start/stop, filling status, communication diagnostics, alarms and setup parameters while keeping the structure expandable for future machine functions. I can provide relevant examples of my actual PLC/HMI and serial-integration work. Please send the scale model/protocol and I/O list, and I can confirm the implementation approach and fixed milestone plan.
$500 USD in 7 days
5.7
5.7

The professional with 16 years of experience in Industrial Automation. Development,Commissioning of PLC Control System, HMI and SCADA^^ ◾ PLC-Siemens [S7-1500F/H, S7-400, S7-400F/H/R, S7-300, S7-1200, S7-200, S5, TI PLC, LOGO!] Rockwell [(Allen Bradley)- SLC500,MicroLogix,CompactLogix.] Schneider [Zelio, M171/72] Automation Direct [DirectLogic Click PLC] Unitronic [V200-18-E3XB Controller] Delta [Delta DVP ES2] ◾HMI-Siemens ** Weintek ** Kinco ** Unitronics ** Hitachi ** Schneider ** Wecon ** DeepSeaElectronics ◾SCADA -WinCC ** In-Touch Wonderware ** Citect ** Ignition ◾ Industrial Networks-PPI-MPI ** Profibus ** AS-i ** Profinet ** Ethernet ** Modbus RTU/Modbus TCP ◾ OPC -PC Access ** OPC Scout ** OPCUA ** Metrikon ** Kepware ◾ Project Documentation-ISA88/95, GAMP, 21CFR Part11, VP, URS, FRS, DS, IQ, OQ, PQ, SOP. ◾ Programming Languages -C# ** VBA ** VB.net ** Javascript ◾ Raspberry pi ** Raspi Camera ◾ Networking Devices - Siemens scalance, Teltonika, Waveshare Modbus Gateway, Moxa Gateway
$500 USD in 7 days
5.6
5.6

Hi, how are you doing? I went through your project description and I can help you in your project. your project requirements perfectly match my expertise. We are a team of Electrical and Electronics engineers, we have successfully completed 1000+ Projects for multiple regular clients from OMAN, UK, USA, Australia, Canada, France, Germany, Lebanon and many other countries. We are providing our services in following areas: Antenna Design (CST, HFSS) Embedded C Programming. VHDL/Verilog, Quartus/Vivado, LabVIEW/ Multisim/PSPICE/VLSI MATLAB/SIMULINK Network Simulator NS2/NS3 Microcontroller like Arduino, Raspberry Pi, FPGA, AVR, PIC, STM32 and ESP32. IDEs like Keil MDK V5, ATmel studio and MPLab XC8. PLCs / SCADA PCB Designing Proteus, Eagle, KiCAD and Altium IOT Technologies like Ethernet, GSM GPRS. HTTP Restful APIs connection for IOT Communications. Also, we have good command over report writing, I can show you many samples of our previous reports. Kindly consider us for your project and text me so that we can further discuss specifically about your project's main goals and requirements.
$500 USD in 7 days
6.1
6.1

I have carefully reviewed your project requirements and I am confident that I can deliver exactly what you are looking for with high quality and efficiency. I bring practical experience, attention to detail, and a strong commitment to meeting deadlines. My goal is always to provide work that not only meets but exceeds client expectations.
$250 USD in 1 day
5.8
5.8

Hi, I am a senior automaiton specialist based in Canada and run local automaiton called CanadaTronix automaiton that services automaiton projects across US and Canada. I ve gone through the details of the project. it is straight forward and all is clear. please see dozens of related projects I have completed and received excellent clients' reviews and satisfaction reviews. I master maple systems PLC programming using maple logic and mapware 7000. I am really all set to start the projects. I propose to deliver all requirements and a guide for operation and settings to help operator to adjust, tare and calibrate the scale and easily operate in manual and automatic cycle. Regards, Yasser
$400 USD in 7 days
6.3
6.3

Hello sir I'm PLC programmer with 10 years of experience in the automation field I have good experience with maple PLC and Hmi and I do alot of jobs using it Please contact me for more detailes I hope we can work together Best regards
$500 USD in 7 days
5.6
5.6

Hi, I’m a Senior PLC/Automation Engineer with 10+ years of experience in industrial controls, PLC/HMI programming, weighing systems, and machine automation. I’ve completed 40+ automation and embedded control projects involving Siemens, Allen-Bradley, Schneider, Mitsubishi, and Omron PLCs, including RS-232/RS-485 device integration, sensors, valves, and production-machine sequencing. Approach ✅ I will configure the Maple HMC controller in MAPware-7000 and implement reliable RS-232 parsing, communication checks, and live weight handling. ✅ I will build the automatic filling state machine with tare/start logic, target-weight control, valve shutoff compensation, timeout handling, and fault recovery. ✅ I will develop the HMI for live weight, target settings, tare, manual controls, status, alarms, and scale diagnostics. ✅ I will test the PLC/HMI logic, I/O behavior, serial communication, and provide clean editable source files for commissioning. Questions ✅What is the exact scale model and RS-232 protocol/message format? ✅Is the filling valve a simple ON/OFF solenoid, and what are the PLC input/output voltage levels? ✅What fill accuracy and typical product flow rate are required? Best, Yaroslav
$500 USD in 7 days
5.0
5.0

As an experienced Industrial Automation Engineer with a wide range of skills, I believe I am uniquely suited for your project. I have significant experience with PLC programming and HMI development, which includes knowledge about MAPware-7000 and the HMC series controllers – including the preferred Maple Systems you mentioned. And when it comes to RS-232 communication, reading data from industrial scales, filling/batching/weighing equipment – all the individual components your project requires – these aspects are not foreign to me either. Drawing from my experience in Wastewater Treatment Plant and Water Treatment Plant Automation, along with various other automation projects, I've honed my skills in automating intricate processes accurately and efficiently. In addition, my work has always been about designing specifics workflows that could be easily upgraded with the introduction of new machinery. Future scalability is in my DNA. This also happens to align closely with the nature of your project. Although this is an initial filling-machine assignment, the possibility of further collaboration on automation projects is very much alive. With such potentials ahead along our professional journey, it'll be exciting for me to put forth my best efforts for this particular project in building a solid rapport for the bigger picture. I would be thrilled to discuss further details with you soon.
$500 USD in 7 days
5.3
5.3

Hello my name is Collins, I am a seasoned industrial automation engineer with extensive experience programming Maple Systems HMC controllers using MAPware-7000. Your weight-based automated filling machine aligns perfectly with my background in batching, weighing, and packaging equipment. Here is how I will approach your project: RS-232 Integration: I have successfully interfaced numerous PLCs with serial industrial scales. I will write robust string-parsing logic to continuously capture live weight data, handle taring, and ensure communication integrity. Precision Control Logic: The PLC sequence will include in-flight/spill compensation (pre-act tuning) to close the nozzle early, accounting for material still falling and guaranteeing high accuracy for every container. Intuitive HMI Design: I will develop clean, operator-friendly screens on the HMC4043A-M featuring live weight displays, target adjustments, manual overrides, and clear alarm diagnostics for easy troubleshooting. Scalable Architecture: The codebase will be modular and fully documented, allowing the seamless integration of future machine functions. You will receive the complete, fully editable MAPware-7000 source files upon completion, along with dedicated remote support during commissioning. I am highly interested in a long-term collaboration for your future production equipment. Let's discuss the scale protocol and get this machine running flawlessly.
$500 USD in 7 days
4.8
4.8

Hello, automating the filling sequence is really about getting accurate weight control and reliable machine timing on the floor. I work regularly with PLC, Electrical Engineering, and Engineering Drawing, which fits closely with what you’re trying to accomplish. I’d start by reviewing your Maple Systems HMC4043A-M setup, the scale’s RS-232 protocol, and existing I/O, then handle the serial parsing and filling logic in a structured way, testing the live weight updates, valve cutoff, and HMI status screens as I go rather than leaving validation until the end. The goal would be to deliver a complete Maple Systems PLC/HMI project that is stable and easy to extend later. I can begin this week and should have this completed within 21 days. One thing I’d like to confirm before starting: do you already have the scale’s exact serial message format and any required overfill compensation target? Best regards, Miguel
$500 USD in 21 days
3.8
3.8

Having years of extensive experience in both electrical and mechanical engineering, coupled with my proficiency in programming and using Maple Systems PLC and HMI control systems, I believe I'm the fitting candidate you're seeking for this project. My portfolio is enriched with successful projects similar to yours, ranging from weighing, batching, filling, to packaging ma
$255 USD in 1 day
4.0
4.0

Hi, thanks for sharing the project. To be transparent: although I work across software, backend systems and automation, I don’t take on PLC or industrial‑automation programming, including Maple Systems HMC controllers, MAPware‑7000 development, RS‑232 scale integration, filling‑sequence logic, HMI screen design, alarms/fault handling, or commissioning support. This scope needs an automation engineer experienced with Maple Systems hardware and weight‑based filling systems who can deliver reliable control logic and a complete PLC/HMI project. They’ll be a much better fit for the requirements you’ve outlined. If you ever need help with technical workflow planning or automation strategy in another context, I can assist - but I’m not the right match for this PLC/HMI project.
$330 USD in 5 days
3.9
3.9

Hello, As a seasoned mechanical engineer, I believe I possess the right skills and expertise to execute this PLC programming project with finesse. My proficiency in 3D modeling and CAD design, particularly with applications such as SolidWorks, AutoCAD, and CATIA, aligns perfectly with your needs for Maple Systems PLC and HMI systems. I have demonstrated a sharp acumen for managing complex mechanical designs and bringing them to life efficiently; an essential requirement for this role. Throughout my career, I have consistently garnered positive results by leveraging my strong grasp of mechanical simulations and analysis. This includes notable experience in FEA (Finite Element Analysis), CFD (Computational Fluid Dynamics), which ensures that all designs I create are not just functional but also contextually effective - a key factor when developing machine automation strategies. Having delivered projects for various industries including startups, engineering firms, and manufacturing units, I understand the significance of clear communication, meeting deadlines, and superior quality deliverables. I am confident my expertise coupled with a tenacious commitment to excellence makes me an ideal partner for this initial filling-machine project. Moreover, as someone who values relationships and aspires to establish long-term collaborative arrangements with clients like you, it would be my utmost pleasure to support your future manufacturing Thanks!
$250 USD in 2 days
2.8
2.8

Hi, As a Master’s graduate in Automatics and Systems, I have successfully executed several migrations from SIMATIC S5 to S7. I understand the nuances of converting S5D source code into reliable, high-performance TIA Portal logic. My Execution Plan: Hardware Selection: Recommend S7-1500 series with a full BOM and Front Connector adapters to minimize downtime. Code Conversion: Manually rewrite and optimize your .S5D logic (addressing, timers) for seamless S7 performance. HMI Modernization: Rebuild the OP35 HMI from scratch on a new Comfort/Unified Panel with modern diagnostics. Ready to review your files and kick off the project. Best regards, Zakaria L.
$500 USD in 7 days
2.8
2.8

Hi there, With a rich and diverse background in software development, engineering, and automation, encompassing everything from **PLC/HMI programming**, such as the Maple Systems HMC controllers you've mentioned, to working with your specified **RS-232 communication**, I assure you that my team at Aesthetic Logic is more than equipped to handle your automated filling machine project from start to completion. We even have experience handling similar projects that involve the use of industrial scales for filling, batching, weighing, or packaging machinery. Moreover, having worked on numerous **data-driven automation projects** using various programming languages including the Maple Systems' MAPware-7000 the project requires, we have a deep understanding of the intricacies involved in tasks like reading weight data accurately from industrial scales and integrating them into an automated control system like the one you need for this filling machine. Hunter Lane brings expansive experience in PLC programming while Liam Adams brings hands-on expertise in HMI development. This collective synergy means not only can we program the Maple Systems PLC to flawlessly manage the filling sequence but also guarantee a simple operator interface through our HMI design that meets all your requirements. Best regards, Mobasher Reza
$500 USD in 3 days
2.3
2.3

I can provide a free consultation to discuss your Maple Systems PLC and HMI programming needs. Would that be helpful for you? One specific hazard in your project is ensuring the PLC communicates flawlessly with the scale. If the communication fails, it could lead to overfilling or underfilling, costing you both material and time. I'd start by establishing the RS-232 communication first, because accurate weight data is critical for the filling process. That initial step helps prevent costly errors downstream. I've tackled similar projects, focusing on creating reliable control logic and ensuring seamless communication. Revisions are part of my process, allowing for adjustments based on your feedback. What’s your timeline for this project? Do you have any existing assets or specifications for the HMI design?
$350 USD in 7 days
2.0
2.0

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