Summary of Contents for KAIROS AIRSENSE
- Page 1 USER MANUAL AIRSENSE GAS DETECTOR V 2_0 USER MANUAL AIRSENSE Release 2_0 Kairos S.r.l. Via Trieste n. 5 17011 Albisola SV Italy Email : Info@kairos-electronics.com Web : www.kairos-electronics.com...
- Page 2 USER MANUAL AIRSENSE GAS DETECTOR V 2_0 USER MANUAL AIRSENSE INDEX Electrical Characteristics pag. Electrical Connections and pinout pag. Drawing pag. Principle of Operation of the Detector Addressing of Detectors Modbus and Data Communication pag. Warning and usage Precaution pag.
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Page 3: Electrical Characteristics
USER MANUAL AIRSENSE GAS DETECTOR V 2_0 1. Electrical Characteristics Serial Communication Power Supply Physical Standard RS485 Power Supply Voltage Range 12 … 40 Vdc Protocol Modbus RTU Power with gas probe <= 1,2 Watt Max Baud rate 115200 B/s... - Page 4 USER MANUAL AIRSENSE GAS DETECTOR V 2_0 2. Electrical connections and pinout Cable glande Rs485 REL 1 Power Dip Switch +24 VDC Rs485 REL 1 CNT 1 CNT 2 CNT 3 Connection 1 Connection 3 Connection 2 CN1.1 +24 Vdc CN3.1...
- Page 5 USER MANUAL AIRSENSE GAS DETECTOR V 2_0 3. Drawing Dimensions are in mm 56 mm 115 mm 28 mm Kairos S.r.l. Via Trieste n. 5 17011 Albisola SV Italy Email : Info@kairos-electronics.com Web : www.kairos-electronics.com...
- Page 6 The gas detector Airsense continuously monitors the Gas level in the enclosed area. If the Gas (CO or No2) level in the air increase above some preset values, the alarm alerts occupants both inside and outside the room of the incident.
- Page 7 USER MANUAL AIRSENSE GAS DETECTOR V 2_0 5. Address of detector The detector comunicates the data with Central Unit by RS485. Each device has its own unique network address. Do not connect devices with the same address in the same network.
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Page 8: Modbus Communication
The Airsense Detector can communicate with external equipment through RS485 line and with Modbus RTU Protocol. The Detectors of the AirSense series use the Modbus RTU transmission protocol to transmit data (on serial TX and USB ports). Modbus is the most widespread serial communication protocol among industrial electronic devices. - Page 9 USER MANUAL AIRSENSE GAS DETECTOR V 2_0 Types of connection with RS485 twisted wires Rs485 Not suggested But allowed Rs485 Rs485 Best Protocol ModBus The detectors send the data to the remote unit PC o PLC using protocol communication Modbus RTU The detector uses the followinf functions Function 04 to read the measure and some dynamic data.
- Page 10 USER MANUAL AIRSENSE GAS DETECTOR V 2_0 Error Code : <0x8 and Function code> <error code> <CRC 1> <CRC2 0x84 0x01 In case of error in CRC fields. 0x84 0x02 in case of data (16 bit high+low) is grater than 0x00FF Example : Command to read the status of Detector 01 starting from address registers = 0.
- Page 11 USER MANUAL AIRSENSE GAS DETECTOR V 2_0 Address Description Available Range 4000 Reserved Reserved 4001 Type of Sensor Writeable 4002 Enabled Writeable 1 = YES 0 = NO 4003 Address Writeable 1… 32 4004 Baudrate Writeable 0 = 9600 1 = 19200 2= 38400 4 = 115200...
- Page 12 USER MANUAL AIRSENSE GAS DETECTOR V 2_0 Addr Address of destination slave module Funct Code N. Regs Numbers of registers sent in the frame (4) Addr High Address high byte = High Byte of address Addr Low Address low byte...
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Page 13: Warning And Precautions
Open the devices only for connection use and don’t repair or modify the devices, if malfunction or failure should occur during operation, send unit to the factory for inspection. No responsibility is assumed by Kairos S.r.l. for any consequences deriving from the use of this material. - Page 14 USER MANUAL AIRSENSE GAS DETECTOR V 2_0 Kairos S.r.l. Via Trieste n. 5 17011 Albisola SV Italy Email : Info@kairos-electronics.com Web : www.kairos-electronics.com...
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