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(2) The host can send the Modbus command periodically to inquire the SMS-531
whether has received the SMS. If the SMS-531 has received the SMS, you can
send the command to read it.
Command and Description:
Checking the
received SMS
(Hex)
Reading the phone
number of the
received SMS
(Hex)
Reading the date of
the received SMS
Command
(Hex)
Reading the
content of the
received SMS
(Hex)
Clear the SMS
from the GT-531
(Hex)
1. The phone of Groups transmits the SMS to the SMS-531. The SMS is
"Hello,GT-531!".
2. To inquire the SMS-531 whether has received the SMS periodically.
Description
3. If the SMS-531 has received the SMS, send the command to read the
phone number, date and the SMS.
4. Because these addresses of these information are continuous, you can
send one command to read that.
command 01 02 00 01 00 01 E8 0A
01 02 01 00 A1 88 (No SMS)
Response
01 02 01 01 60 48 (Receiving the SMS)
command 01 04 00 1E 00 0A 10 0B
01 04 14 38 38 36 39 32 38 37 36 36 35
Response
30 37 00 00 00 00 00 00 00 00 B6 6E
command 01 04 00 28 00 07 31 C0
01 04 0E 32 30 31 31 30 34 32 32 30 39
Response
35 35 33 31 3D 79
command 01 04 00 2F 00 51 00 3F
01 04 A2 00 00 48 65 6C 6C 6F 2C 47 54
2D 35 33 31 21 00 00 00 .........(Size is
Response
162 Bytes)
command 01 05 00 C7 FF 00 3D C7
Response 01 05 00 C7 FF 00 3D C7
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SMS-531 User's Manual v1.1
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