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King Pigeon Hi-Tech. Co., Ltd.
Ver 1.0
GSM/SMS/GPRS/3G/4G/Ethernet/Cloud
LoRa Gateway
20
)
Delete slave device Instruction
21
)
Query gateway and slave device communication status
Appendix B Local Modbus Register Address
S281 has no I/O port. The register is mainly used to map and store the temperature, humidity and voltage values
of the terminal.
Input register support function code 04
SMS Command
Return SMS Content
Set
PaDELDEVxx
Note:xx,1-99,device ID,can only be deleted one by one separately
device: xx, deleted successfully
SMS Command
Return SMS Content
Query
PRCUC
Note:query gateway and slave device communication status
If the communication resumes normally,
the SMS reply: the slave device
communication is normal.
If the slave device communication is not
normal, the SMS reply: device ID: xx, yy
zz... communication is abnormal.
Mappin
g
address
Slave
number
Data Point
Data Type
Description
9C40H
Slave
1
Temperature
16-bit signed integer
Truevalue =thisvalue/10
9C41H
Humidity
16-bit signed integer
Truevalue =thisvalue/10
9C42H
Voltage
16-bit signed integer
Truevalue =thisvalue/10
9C43H
Slave
2
Temperature
16-bit signed integer
Truevalue =thisvalue/10
9C44H
Humidity
16-bit signed integer
Truevalue =thisvalue/10
9C45H
Voltage
16-bit signed integer
Truevalue =thisvalue/10
9C46H
Slave
3
Temperature
16-bit signed integer
Truevalue =thisvalue/10
9C47H
Humidity
16-bit signed integer
Truevalue =thisvalue/10
9C48H
Voltage
16-bit signed integer
Truevalue =thisvalue/10
.
.
.
.
.
.
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.
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.
.
.
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.
.
9D66H
Slave
100
Temperature
16-bit signed integer
Truevalue =thisvalue/10
9D67H
Humidity
16-bit signed integer
Truevalue =thisvalue/10
9D68H
Voltage
16-bit signed integer
Truevalue =thisvalue/10