Foshan Qingjun Electronics Manuals & User Guides

Foshan Qingjun Electronics Co., Ltd. is a Chinese manufacturer specializing in industrial control products and automation hardware. The company designs and produces a wide range of electronic modules including RS485 and RS232 relay boards, digital input/output controllers, analog signal acquisition modules, and localized PLC systems.

Focused on compatibility and ease of integration, Foshan Qingjun Electronics products typically utilize the standard Modbus-RTU communication protocol, making them suitable for various industrial applications such as temperature monitoring, lighting control, and system testing. Their hardware often features configurable DIP switches for address and baud rate settings, catering to the specific needs of automation engineers and system integrators.

• How do I configure the baud rate on Foshan Qingjun modules?

  You can configure the baud rate using the red DIP switches on the module board. Refer to the specific product manual for the switch combinations (e.g., 9600bps or 19200bps). The settings take effect only after the device is restarted.

• What communication protocol is used?

  Most Foshan Qingjun Electronics modules utilize the standard Modbus-RTU protocol for communication over RS485 or RS232 interfaces.

• What is the default communication timeout?

  The default communication timeout is typically set to 10 seconds. This can correspond to a register value (e.g., 0x2710 in hexadecimal) and can often be adjusted via the timeout registers.

• How do I calculate the actual temperature from the PT100 module data?

  For the PT100 temperature acquisition module, the actual temperature is usually the collected integer value divided by 10. For example, a reading of 255 (0x00FF) corresponds to 25.5°C.

• Does the module save settings after power loss?

  Yes, settings such as the hardware address configured via DIP switches and certain register values like timeout settings typically utilize power-off memory saving.