4 sensor data block, Sensor data block – YSI IQ SensorNet MIQ/A-MOD Module User Manual
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Data transmission
MIQ/(A-)MOD
30
ba76021e01
01/2012
4.4
Sensor data block
The data block contains the data of up to 30 sensors in the order of
registering on the IQ S
ENSOR
N
ET
(Sxx number).
The data of a sensor are stored in 8 registers each.
Thus, the sensor data block consists of altogether 240 registers. Each
register contains 2 bytes. The bytes 0 and 1 form register 0001, the
bytes 2 and 3 form register 0002, etc.
Modbus
Information
Data format
Register
Bit
Data
type
Bit
Sensor S01
0001
1-8
1 [= sensor number (S01)]
(Int 8)
7-0
0001
9-16
Sensor status
(Int 8)
7-0
0002
1-16
Sensor model
(Int 16)
15-0
0003
1-16
Status info
(Int 16)
15-0
0004
1-8
Measuring mode
(Int 8)
7-0
0004
9-16
Measured value status
(Int 8)
7-0
0005
1-16
Main measured value (IEEE-754 floating point, 32-bit)
(Float 32)
31-16
0006
1-16
Main measured value (IEEE-754 floating point, 32-bit)
(Float 32)
15-0
0007
1-16
Secondary meas. value (IEEE-754 floating point, 32-bit)
(Float 32)
31-16
0008
1-16
Secondary meas. value (IEEE-754 floating point, 32-bit)
(Float 32)
15-0
Sensor S02
0009
1-8
2 [= sensor number (S02)]
(Int 8)
7-0
0009
9-16
Sensor status
(Int 8)
7-0
0010
1-16
Sensor model
(Int 16)
15-0
0011
1-16
Status info
(Int 16)
15-0
0012
1-8
Measuring mode
(Int 8)
7-0
0012
9-16
Measured value status
(Int 8)
7-0
0013
1-16
Main measured value (IEEE-754 floating point, 32-bit)
(Float 32)
31-16
0014
1-16
Main measured value (IEEE-754 floating point, 32-bit)
(Float 32)
15-0
0015
1-16
Secondary meas. value (IEEE-754 floating point, 32-bit)
(Float 32)
31-16
0016
1-16
Secondary meas. value (IEEE-754 floating point, 32-bit)
(Float 32)
15-0