The data telegram is a 13 byte MSC message.


Field

Value hex

Description

Rorg

0xD1

D1 = MSC telegram

Data Byte

0x03

Part of manufacture id

Data Byte

0xC1

C = part of manufacture id, 1 = measuring range -20 to 100'c

2 = measuring range 0 to 85’c

Data Byte

0x00

Channel 1 Temperature measurement 1        (Newest)

Data Byte

0x00

Channel 1 Temperature measurement 2

Data Byte

0x00

Channel 1 Temperature measurement 3 (Oldest)

Data Byte

0x00

Channel 2 Temperature measurement 1

Data Byte

0x00

Channel 2 Temperature measurement 2

Data Byte

0x00

Channel 2 Temperature measurement 3

Data Byte

0x00

Channel 3 Temperature measurement 1

Data Byte

0x00

Channel 3 Temperature measurement 2

Data Byte

0x00

Channel 3 Temperature measurement 3

Data Byte

0x00

Internal temperature measurement

Data Byte

0x00

Sensor status byte- see below


The temperature measurements interpretation depends on the temperature range setting of the sensor.


03C1 has a range of -20 to +100 in °C steps


Example: °C


03C2 has a range of 0 to +85 in °C steps


Example: °C


Breakdown of Sensor status byte


0000000x

Bit 0

0 = Battery powered 1= solar powered

000000x0

Bit 1

0 = dying gasp 1 = normal battery

00000x00

Bit 2

Reserved

0000x000

Bit 3

Reserved

00xx0000

Bits 4&5

Sample time 00= 10 seconds, 01= 20 seconds,

10= 40 seconds, 11= 100 seconds

0x000000

Bit 6

Reserved

x000000

Bit 7

Reserved


Status byte Received

Sample time Seconds

Power Level

Battery or Solar powered

00

10

Dying gasp

Battery

01

10

Dying gasp

Solar

02

10

Normal

Battery

03

10

Normal

Solar

10

20

Dying gasp

Battery

11

20

Dying gasp

Solar

12

20

Normal

Battery

13

20

Normal

Solar

20

40

Dying gasp

Battery

21

40

Dying gasp

Solar

22

40

Normal

Battery

23

40

Normal

Solar

30

100

Dying gasp

Battery

31

100

Dying gasp

Solar

32

100

Normal

Battery

33

100

Normal

Solar