ASAIR AF5485 User Manual

ASAIR AF5485 User Manual

Temperature & humidity transmitter

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Temperature & Humidity Transmitter
AF5485 User Manual

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Summary of Contents for ASAIR AF5485

  • Page 1 Temperature & Humidity Transmitter AF5485 User Manual...
  • Page 2: Product Overview

    AF5485 User Manual 1 Product Overview The AF5485 is a high performance industrial network-based temperature and humidity transmitter. It measures the temperature and humidity environment in the form of digital display on the local display. When the measured data exceeds the limitation, the output control signal generate a sound alarm signal, at the same time the response is sent by the host command, to upload the data to the host through the RS485 bus in the data packets.
  • Page 3 AF5485 User Manual Figure 1 Relative Humidity error Figure 2 Relative Temperature error The measured value of the product may be subject to the following factors: 1).The temperature error ◎Placed in a test environment in settling time is too short.
  • Page 4 AF5485 User Manual 3 Dimensions Figure 3 Dimension (Units: mm) 4 RS485 typical applications The external communication specification is shown in table 1. Table 1: Wiring interface specification Pin Mark Wiring Color Function Description white RS485B- black yellow RS485A+ Figure 4Terminal son diagram - 3 - TEL:020-89851175 / 89850036...
  • Page 5: Slave Address

    AF5485 User Manual Figure 5 RS485 typical applications 5 Slave address Based on ModBus RTU protocol -, device address is the only, according to the PCB board after eight dial the code switch (Figure 6) to set selection need to address, eight allows a maximum of 255 devices (address received from 1 ~ 255) in the system.
  • Page 6 AF5485 User Manual 6 RS485 protocol 6.1、Internal register mapping address Addre Addre Addre Addre Registers Registers Registers Registers 0x000 0x000 Humidity upper limit 0x001 Reserved 0x001 Humidity Device Type alarm value 0x000 0x000 Enabled humidity 0x001 Reserved 0x001 Temperature Version(Low 8 Byte)
  • Page 7 AF5485 User Manual transmitter address+ 0x10 + register start address(2 bytes) + register number(2 bytes) + sc-bytes(1 byte) + data 0+..+ data n + CRC low byte +CRC high byte Transmitter return format transmitter address + 0x10 + register start address(2 bytes) + register number(2...
  • Page 8 AF5485 User Manual The following table is an example of returning a set of temperature and humidity data: 01 03 04 01 D7 00 D6 CA 69 Byte Remarks Slave response Message number Slave Address Slave that send to address 01...
  • Page 9 AF5485 User Manual 6.Repeat step 2 to step 5 to perform the next byte processing of the communication information frame; 7.After all the bytes of the communication information frame are calculated as described above, the high and low bytes of the resulting 16-bit CRC register are exchanged;...
  • Page 10: License Agreement

    AF5485 User Manual 7 License Agreement 1) Without the written permission of the company, it shall not copy or disseminate the content of this specification in any form, nor shall it be disclosed to a third party. 2) The company and the third party have the ownership of the software, and the user can only use it after signing the contract or obtaining the software license.
  • Page 11 AF5485 User Manual technical conditions of the product are met. The company applies its products to those special applications without any warranties or statements, as well as any commitment to the reliability of the products applied to products or projects.

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