Adeunis RF ARF8181BA2D, Руководство пользователя, Страница: 69 / 84

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sigfox TEMP- Guide utilisateur / User guide version V2.0.1
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FR
• Byte 5:
o Bits 0 to 3:
0: deactivated
1: activated
o Bits 4 to 7: The user identifier defined in register 322
• Bytes 6 to 7: Value measured on the probe 1
• Signed value on 16 bits,
• Expressed in tenths of degrees,
• Most significant byte first
• The special value 0x8000, equivalent to -3276, 8°C is returned in the event of a fault in the sensor.
In the example in grey this gives:
• Byte 2=0xD1:
o Bits 0 to 3 = 0x1: The probe 1 is activated
o Bits 4 à 7 = 0xD: the identifier of the probe 1 defined by the user is equal to 0xD
• Bytes 3 to 4=0x015E: The value measured on the probe 1 is 350/10=35°C
• Byte 5=0x81:
o Bits 0 to 3 = 0x1: The probe 2 is activated
o Bits 4 to 7 = 0x8: the identifier of the probe 1 defined by the user is equal to 0x8
• Bytes 6 to 7=0xFF06: the hexadecimal value 0xFF06 = -250. Hence the value measured on the probe 2 is -250/10=-25°C
4.1.5 Reply frame to a register value request in a downlink frame
Following reception of a downlink frame with the code 0x40, the frame 0x31 is transmitted.
It contains all the values of the registers requested in the downlink frame 0x40.
0 1 2 3 4 5 6 ... 11
Code PAYLOAD PAYLOAD
0x31 Status VALUE1 VALUE1 VALUE2 VALUE3 VALUE3 ... X
In this example: CONFID1 is a 2-byte register, CONFID2 a 1-byte register and CONFID3 a 2-byte register.
If an error is detected in the request, the returned 0x31 frame will be empty.
4.1.6 Data Frame
This frame (0x43) contains the values measured on the different sensors.
0 1 2 3 4 5 6 7 8 9 10
Code Status PAYLOAD
0x43 Cf Status
probe 1
identifier
Value read on the
probe 1
Probe 2
identifier
Value read on the
probe 2
X X
0x43 0xA2 0xD1 0x015E 0x82 0xFF06
Description of the frame:
• Byte 2:
o Bits 0 to 3:
0: deactivated
1: activated
o Bits 4 to 7: The user identifier defined in register 320
• Bytes 3 to 4: Value measured on the probe 1
• Signed value on 16 bits,
• Expressed in tenths of degrees,
• Most Significant Byte first
• The special value 0x8000, equivalent to -3276,8°C is returned in the event of a fault in the sensor.