Automatic Sheet Loading Machines Connected to MES Through Industrial IoT Data Acquisition
Time:2026-08-25 Browse: 0
August 25, 2026
A metal processing workshop has implemented an industrial IoT data acquisition solution for multiple automatic sheet loading machines, enabling equipment operating data, production information, and alarm signals to be collected and transmitted to its Manufacturing Execution System (MES).
The project uses a PLC data acquisition gateway from WideIOT to connect the control PLCs installed in the automatic sheet loading machines. Where PLC communication ports are already occupied by existing control functions, the gateway can instead obtain the required data through the machine's HMI.
The solution provides a practical way to connect existing material handling equipment with the workshop's MES without changing the core control functions of the machines.
From Automatic Sheet Loading to Connected Equipment
Automatic sheet loading machines are commonly used in metal processing lines to separate stacked sheets and deliver individual sheets to the next production station.
The equipment in this application integrates several automated functions, including automatic lifting, vacuum pickup, mechanical sheet alignment or shaking, sheet thickness detection, and material shortage alarms. These functions reduce manual loading work and help maintain a stable supply of sheet material to downstream processing equipment.
While the machines already perform their intended mechanical and control functions, production managers previously had limited access to operating information outside the local machine interface.
The new data acquisition architecture adds an information layer between the shop-floor equipment and the MES.
Instead of replacing the existing PLC control system, the gateway reads selected operating parameters from the equipment and forwards the data to the upper-level management system.
PLC Data Acquisition for Automatic Sheet Loading Machines
The industrial IoT gateway collects key operating parameters from the automatic sheet loading machines in real time.
Depending on the machine configuration, monitored data can include:
Conveyor acceleration time
Conveyor deceleration time
Sheet thickness
Sheet shaking or alignment count
Production quantity
Vacuum pressure
Lifting platform position
Material shortage alarm signals
Equipment status and fault information
This data provides the MES with a more complete view of machine operation and production activity.
The gateway supports multiple industrial communication protocols, including Modbus RTU/TCP, PROFINET, S7 and OPC UA, allowing it to work with different PLC and automation architectures. WideIOT's PLC gateway documentation also lists support for major PLC brands such as Siemens, Mitsubishi, Omron, Schneider, Delta, Inovance and Allen-Bradley.
For machines using different communication interfaces, the gateway can act as a protocol and connectivity layer between shop-floor controllers and the MES environment.
5G Connectivity for MES Integration
After the required machine data is collected, the gateway transmits the information to the MES through the industrial network.
The solution can use 5G, 4G, Wi-Fi or Ethernet depending on the communication environment of the workshop. This provides flexibility when connecting equipment located in different production areas or when conventional wired network deployment is inconvenient.
Industrial IoT gateways are commonly used as edge nodes between PLCs and higher-level software systems, providing functions such as data acquisition, protocol conversion, data processing and network connectivity.
In this application, the gateway focuses on collecting production-relevant information from the automatic sheet loading machines and making that information available to the MES.
Real-Time Equipment Monitoring
Once the data reaches the MES, production and maintenance personnel can monitor multiple machines from a centralized interface.
Instead of checking each machine individually, managers can review parameters such as conveyor timing, sheet thickness, production quantity, vacuum pressure and lifting platform position through a visual equipment dashboard.
This centralized monitoring approach is particularly useful when several automatic sheet loading machines are operating simultaneously.
The purpose is not to replace local machine control. Local PLCs continue to perform the equipment control tasks, while the data acquisition gateway provides a communication path for production monitoring and management.
Alarm Monitoring and Notification
The solution also supports monitoring of equipment alarm conditions.
For example, a material shortage signal or abnormal equipment parameter can be transferred to the MES or monitoring platform. Alarm thresholds can be configured according to the actual production requirements.
When an abnormal condition is detected, management personnel can receive notifications through configured channels such as SMS, email or WeChat.
This allows maintenance personnel to identify abnormal conditions earlier instead of relying entirely on operators to discover and report problems manually.
The gateway's edge-processing capabilities can also be used for data filtering and alarm calculations before information is forwarded to an upper-level system.
Production Data Becomes Available for MES Analysis
Another important part of the project is production data collection.
By continuously collecting production quantity from the automatic sheet loading machines, the MES can organize production information by shift, day or week.
The resulting data can support reports such as:
Shift production reports
Daily production reports
Weekly production reports
Equipment fault statistics
Alarm and fault distribution
Equipment operation logs
Historical production records
When an abnormal event occurs, historical equipment data and logs can also help maintenance personnel review what happened before and after the event.
This provides a more traceable basis for equipment troubleshooting and production analysis.
A Practical Approach for Existing Automation Equipment
One of the key characteristics of this project is that the existing automatic sheet loading machines do not need to be replaced simply because production data needs to be connected to the MES.
The PLC remains responsible for machine control, while the data acquisition gateway provides an additional communication interface for collecting and transmitting selected data.
This architecture can be useful for factories that already have automated equipment but need to improve production visibility.
It also provides a relatively flexible approach for connecting equipment with different PLC brands and communication protocols to a common MES environment.
WideIOT's industrial gateway portfolio is designed for industrial equipment data acquisition and supports connections to PLCs, CNC machines, instruments and other industrial devices, with northbound communication options including MQTT, OPC UA, Modbus TCP and other interfaces.
Supporting More Transparent Metal Processing Operations
For the metal processing workshop, connecting automatic sheet loading machines to the MES creates a continuous data path from the shop floor to the production management layer.
The machines continue to handle sheet separation and automatic feeding, while the PLC data acquisition gateway collects the operating information required by the MES.
With equipment status, production quantity and alarm information available centrally, production managers can obtain a clearer picture of machine operation and respond to abnormal conditions more efficiently.
The project demonstrates a practical industrial IoT application: rather than replacing existing automation systems, a data acquisition gateway can be used to connect shop-floor PLC equipment with MES and provide the production data needed for centralized monitoring and management.
