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King Pigeon Hi-Tech. Co., Ltd.
Ver 3.0
GSM/SMS/GPRS/3G/4G
Cellular IoT M2M RTU
Code
Data Bytes
Range
1
38H
One address can read 2 bytes.
AIN address range: 0000-000BH, One AIN data take two address,
temperature address: 0018H, humidity address: 0019H, DIN0 count value
address: 001A,001B
External power voltage address: 000E
。
Returning
Data
N
00 00 00
E7 00 00
00 DD 00
00 00 DD
00 00 00
DC 00 00
00 DE 00
00 00 DF
00 00 00
00 04 C6
01 9A 00
00 00 01
00 01 00
01 00 01
00 01 00
01 00 01
0B 36 1B
E4 00 00
00 0BH
N= Returning bytes, sample data 56 points:
AIN
AIN0
AIN1
AIN2
AIN3
Invalid
Invalid
Receivin
g Data
00 00
00 E7H
00 00
00
DDH
00 00
00
DDH
00 00
00 DCH
00 00
00 DEH
00 00
00 DFH
Decimal
Value
194
207
0
0
0
0
Real
Value
1.94
2.07
0
0
0
0
Other
Value
External Power
Voltage
Temperature
Humidity
DIN0 Count
Value
Receivin
g Data
04 C6H
0B 36H
1B E4H
00 00 00 0B
Decimal
Value
1222
2870
7140
11
Real
Value
12.22V
28.7
℃
71.4%RH
11 times
AIN, External Power Voltage, Temperature, Humidity real value=Register
value/100
。
16CRC
Verify
2
A9 3CH
CRC0 CRC1 low byte in front, high behind
Example: Inquiry device 28 input type register at same time, start from address 0. Include 6 AIN, one device
temperature, humidity, external power voltage, DIN0 count value, then:
Server send:
01 04 00 00 00 1C F1 C3
01H= Device address; 04H= Read input register value; 00 00H AIN0= Starting address; 00 1CH= Serial reading
28 input register value; F1 C3H CRC verify.
Device answer:
01 04 38 00 00 00 E7 00 00 00 DD 00 00 00 DD 00 00 00 DC 00 00 00 DE 00 00 00 DF 00 00 00
00 04 C6 01 9A 00 00 00 01 00 01 00 01 00 01 00 01 00 01 00 01 0B 36 1B E4 00 00 00 0B A9 3C
01H= Device address; 04H= Read input register value; 56 bytes data after 38H, 00 00 00 E7H AIN0 value, 00 00
00 0DD AIN1 value, 00 00 00 DDH AIN2 value, 00 00 00 DCH AIN3 value, 00 00 00 DEH invalid value, 00 00 00
DFH invalid value, 00 00 00 00H invalid value, 04 C6H external power voltage value, 01 9A 00 00 00 01 00 01
00 01 00 01 00 01 00 01 00 01H invalid value, 0B 36H temperature value, 1B 36H humidity value, 00 00 00 0BH
DIN0 count value, A9 3C CRC verify.