Feature: 1. The acquisition module can be connected to 8 PT100 temperature sensors, which can be used in a variety of high-precision temperature equipment. 2. The temperature measurement range of PT100 is ‑50‑450℃, the accuracy can be ±1℃, and the data collection is fast and accurate. 3. The initial baud rate is 9600 and the station number is 01, and the baud rate and station number can be adjusted by instructions. 4. The shell is made of engineering plastic, which has good comprehensive mechanical properties, corrosion resistance and good electrical insulation. 5. Can be networked with PLC, HMI, PC, etc., and is widely used for signal control of industrial field equipment. Specification Specification: Item Type: Acquisition Module Model: WSM02-2 Material: Engineering Plastic Power Supply Voltage: DC 8-30V Maximum Working Current: 120mA Application Scenario: Cooperate with the host(PLC, HMI, PC are all available), collect the digital value after voltage signal conversion. Commonly used in industrial equipment monitoring, environmental monitoring and other occasions. How to use: 1. After the PT100 is connected, the correct temperature information can be read, and the display temperature when the circuit is open is about 265.7℃. 2. PT100 PV, connected to the PT100 single-line end, PS, connected to one of the compensation wires, PG, and the other-one compensation wire connection (PS and PG are connected to the same color wire) Communication Description: Query the Tirst Temperature Input: Host Sending: 01/04/0010/0001/300F/ Station number/function code/first address/quantity/check code/ Module Return: 01/04/02/0122/38B9/ Station number/function code/bytes/temperature data/check code/ The returned register data is a signed integer whose value is 10 times the measured temperature. The returned data is 0122 converted to decimal number 290, and the measured temperature is 29℃ Query 1 to 8 Temperature Input: Host Send: 01/04/0010/0008/F009/ Station number/function code/first address/quantity/check code/ Module Return: 01/04/10/00 64 00 64 00 64 00 64 00 64 00 64 00 64 00 64 /DB EA/ Station number/function code/bytes/temperature data/check code/ The returned data is 0064 and converted to decimal as 100, then the measured temperature is 10℃ Modify Module Parameters (baud Rate, Station Number): 1. The baud rate and station number parameters of this module are stored in the data register, which can be modified by command 2. Modification of the Baud Rate: Write data (00H~08H corresponding to 9 baud rates) into the module data register 19H (the address corresponding to the baud rate) to modify the baud rate. After the module responds, the baud rate Will be modified, this parameter can be saved after power-off. The Corresponding Relationship of These 9 Baud Rates is: 00H 600 01H 1200 02H 2400 03H 4800 04H 9600 (default) 05H 19200 06H 38400 07H 57600 08H 115200 Example: Modify the current baud rate to 1200bps Host Sends: 01 06 00 19 00 01 99 CD Module Returns: 01 06 00 19 00 01 99 CD 3. Modification of the Station Number: Write data (00H is the broadcast address, 01H is the default address of the module) to the module data register 18H (the address corresponding to the station number) to modify the station number. After the module responds, the station number will be changed. Modify, this parameter can be saved after power-off. Example: Modify the module whose current station number is 01H to 09H Host Sends: 01 06 00 18 00 09 C9 CB Module Returns: 01 06 00 18 00 09 C9 CB Module returns When the baud rate and station number information is forgotten, you can reset by shorting the TP1 pad on the module to ground (use with caution). Package List: 1 x Acquisition Module