PLC Porgramming Maple System

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.