User Manual

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QM7590L Us er Manual http://www.qunbao.com/

Shanghai hitdo Industrial Co., Ltd TRANBALL Brand Division Page1

QM7590L

User Manual

File Version: V22.1.14

QM7590L using the standard RS485 bus MODBUS-RTU protocol,easy access to PLC，DCS and

other instruments or systems for monitoring carbon dioxide,temperature,humidity,illuminance,noise state

quantities.The internal use of high-precision sensing core and related devices to ensure high reliability and

Summary of content (9 pages)

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QM7590L Us er Ma nual http://www.qunbao.com/ QM7590L User Manual File Version: V22.1.14 QM7590L using the standard RS485 bus MODBUS-RTU protocol,easy access to PLC，DCS and other instruments or systems for monitoring carbon dioxide,temperature,humidity,illuminance,noise state quantities.The internal use of high-precision sensing core and related devices to ensure high reliability and Sha nghai hitdo Industrial Co.
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QM7590L http://www.qunbao.com/ Us er Ma nual excellent long-term stability,can be customized RS232,RS485,CAN,4-20mA,DC0~5V\10V,ZIGBEE,Lora,WIFI,GPRS and other output methods. Technical Parameters Technical parameter Parameter value Brand TRANBALL CO2 range CO2 accuracy 0~5000ppm ±100ppm Temperature measuring range -30℃~80℃ Temperature measuring accuracy ±0.
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QM7590L Us er Ma nual http://www.qunbao.com/ How to wiring? Sha nghai hitdo Industrial Co.
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QM7590L Us er Ma nual http://www.qunbao.com/ Application solution Sha nghai hitdo Industrial Co.
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QM7590L Us er Ma nual http://www.qunbao.com/ How to use? Sha nghai hitdo Industrial Co.
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QM7590L Us er Ma nual http://www.qunbao.com/ Communication Protocol The product uses RS485 MODBUS-RTU standard protocol format, all operation or reply commands are hexadecimal data. The default device address is 1 when the device is shipped, the default baud rate is 9600, 8, n, 1 1. Read Data (Function id 0x03) Inquiry frame (hexadecimal), sending example: Query 1# device 1 data, the host computer sends the command:01 03 00 00 00 05 85 C9 .
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QM7590L Us er Ma nual http://www.qunbao.com/ 40003 00 02 humidity Read Only 0~65535 40106 00 69 protocol read/write 1~10 3 read and modify device address (1) Read or query device address If you don't know the current device address and there is only one device on the bus, you can use the command FA 03 00 64 00 02 90 5F Query device address. Device ID Function id Start Address Data Length CRC16 FA 00 02 90 5F 03 00 64 FA is 250 for the general address.
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QM7590L Us er Ma nual http://www.qunbao.com/ For example, changing the baud rate from 9600 to 38400, ie changing the code from 3 to 5, the command is: 01 06 00 67 00 05 F8 1601 03 00 66 00 01 64 15 . Device ID 01 Function id Start Address Target Baud Rate CRC16 03 00 66 00 01 64 15 Change the baud rate from 9600 to 38400, changing the code from 3 to 5.
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QM7590L Us er Ma nual http://www.qunbao.com/ Address:Building 8,No.215 North east road,Baoshan District,Shanghai,China Web: http://www.qunbao.com Web: http://www.tranball.com SKYPE: soobuu Email: sale@sonbest.com Tel: 86-021-51083595 / 66862055 / 66862075 / 66861077 Sha nghai hitdo Industrial Co.