Application of Solidot's Remote I/O Module XB6S in Automotive Gas Generator Assembly Lines

The gas generator for automotive airbags is a safety-critical component, and its assembly line places stringent requirements on part loading speed, assembly action coordination, and process control stability. The XB6S series remote I/O modules effectively simplify equipment wiring, improve communication stability, and ensure product quality and efficiency.

Solidot products used in this case study:

XB6S-PN2002, XB6S-1600, XB6S-0016B, XB6S-A04I

1. Production process overview

Precision assembly workflow: empty tray positioning → component feeding → component assembly → vibratory bowl feeding → performance testing → marking and packaging

Empty tray positioning: the conveyor system transports empty trays to the station, and a positioning sensor triggers the clamping device to secure them.

Component feeding: the speed and start/stop of the conveyor belt are controlled to ensure components are transferred to the assembly position in sequence.

Component assembly: the robotic arm performs pick-and-place and assembly actions based on vision recognition.

Vibratory bowl feeding: the vibratory bowl orients and feeds small parts in order; stable and adjustable frequency is required to ensure smooth feeding.

Performance testing: electrical parameters and functions of the assembled parts are tested.

Marking and packaging: qualified products are laser-marked and automatically enter the packaging process.

2. I/O module application mode

The production line control system is based on the PROFINET protocol, with a Siemens S7-1500 PLC as the core master. Via the Solidot remote I/O XB6S series PROFINET coupler XB6S-PN2002, it connects the digital input module XB6S-1600, the digital output module XB6S-0016B and the analog output module XB6S-A04I, building an efficient, low-latency and highly noise-immune control network.

XB6S-1600 acquires the empty tray in-position signal, fixture positioning status, vibratory bowl operation feedback and safety interlock; XB6S-0016B assists in controlling the start/stop of the vibratory bowl motor, the actions of the conveyor mechanism and the actuators at the test station; XB6S-A04I outputs current analog signals for the product testing process. The PLC performs centralized scheduling and comprehensive data processing to achieve command issuance and full-process coordination.

3. Optimization results of the solution

After adopting the Solidot remote I/O module XB6S series products, the overall communication stability of the assembly line is improved, wiring is simplified, equipment maintainability and scalability are enhanced, and the overall cost of the production line is effectively reduced.

4. Highly reliable remote I/O module XB6S series products

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, featuring superior noise immunity and no disconnection; they support diagnostics, alarms and exception log recording, providing intelligent feedback and convenient use.