Application of Solidot Slice Remote I/O Module XB6S in Filling and Weighing Systems

Filling and weighing systems are key equipment in the food and chemical industries, responsible for the quantitative filling of liquid materials. As production efficiency and accuracy requirements continue to rise, the system must achieve rapid start/stop control, real-time weight acquisition, coordinated action of multiple valves and full-process monitoring, placing stringent demands on the real-time response and signal stability of the control system. Using the XB6S series remote I/O modules effectively simplifies wiring and lays the foundation for stable and efficient filling.

Solidot products used in this case study

XB6S-PN2002

XB6S-1600, XB6S-3200, XB6S-0012J/6

XB6S-A40I, XB6S-A80I, XB6S-A04I, XB6S-A08I

XB6S-A40TM, XB6S-A80TM, XB6S-C01SP

PART ONE

Production process overview

Canning process: empty can positioning → filling → weighing and regulation → full can detection/label printing

[Empty can positioning]

The empty cans are conveyed to the station by the conveyor line. A proximity switch detects the in-position signal and triggers the positioning mechanism to clamp and secure the can.

[Filling]

The conveyor belt speed and start/stop are controlled to ensure that the components operate in sequence according to the preset fill quantity, controlling the opening and closing timing of the main filling valve and the fine-tuning valve to achieve fast filling and precise top-up.

[Weighing and regulation]

The load cell acquires the material weight in the can in real time, and the control system dynamically adjusts valve action to ensure filling accuracy.

[Full can detection/label printing]

Once the weight target is reached, the valve is closed and a full can confirmation is performed. After confirming there is no leakage, the positioning is released and the can is conveyed to the label printing station to record production information, ensuring traceability.

PART TWO

I/O module application mode

The PROFINET bus protocol is used, with a Siemens S7-1500 PLC as the master. Remote I/O modules are connected via the coupler XB6S-PN2002. The modules include: digital input modules (XB6S-3200, XB6S-1600), relay output module (XB6S-0012J/6), analog modules (XB6S-A40I, XB6S-A80I, XB6S-A04I, XB6S-A08I), temperature input modules (XB6S-A40TM, XB6S-A80TM) and serial communication module (XB6S-C01SP).

XB6S-1600 acquires the in-position signals of empty cans and the limit position status signals of valves; XB6S-3200 acquires safety interlock signals such as emergency stop and safety door lock.

XB6S-A40I, XB6S-A80I, XB6S-A04I and XB6S-A08I transmit signals from multi-station weighing sensors and valve control currents, with high interference immunity ensuring stable data.

XB6S-A40TM and XB6S-A80TM acquire material temperature and temperature rise signals at critical points of the equipment in real time.

XB6S-0012J/6 outputs motor start/stop, main valve/fine-tuning valve open/close and audible and visual alarm signals.

XB6S-C01SP connects to label printing devices via the RS485 communication protocol and outputs label printing data.

PART THREE

Solution optimization results

After the customer adopted the Solidot remote I/O module XB6S series products, the analog module can acquire weighing signals nearby, and the module's high interference immunity ensures data accuracy; the overall I/O system simplifies wiring complexity and improves system maintainability; the slice I/O module can be expanded at any time, reducing production line upgrade costs and installation and commissioning time.

PART FOUR

High-reliability remote I/O module XB6S series

The Solidot remote I/O module XB6S series products support multiple bus protocols and offer function modules such as motion control and temperature acquisition; the products have passed strict EMC testing, feature ultra-high interference immunity and refuse to go offline; they support diagnostics, alarms and exception log recording, providing intelligent feedback and convenient use.