SimCom SIM7500 Series Command Manual

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SIM7500_SIM7600_SIM7800 Series_MQTT_AT Command Manual 20 / 41
c)If failed:
ERROR
Defined Values
<client_index>
A numeric parameter that identifies a client. The range of permitted
values is 0 to 1.
<req_length>
The length of input message data. The publish message should be
UTF-encoded string. The range is from 1 to 10240 bytes.
<err>
The result code: 0 is success. Other values are failure. Please refer
to chapter 2.3.1.
2.2.12 AT+CMQTTPUB Publish a message to server
AT+CMQTTPUB is used to publish a message to MQTT server.
NOTE: The topic and payload will be clean after execute AT+CMQTTPUB.
AT+CMQTTPUB Publish a message to server
Test Command
AT+CMQTTPUB=?
Response
+CMQTTPUB (0-1),(0-2),(60-180),(0-1),(0-1)
OK
Write Command
AT+CMQTTPUB=<client_index>,<qos>,
<pub_timeout>[,<ratained> [,<dup>]]
Response
a)If successfully:
OK
+CMQTTPUB: <client_index>,0
b)If failed:
OK
+CMQTTPUB: <client_index>,<err>
c)If failed:
+CMQTTPUB: <client_index>,<err>
ERROR
d)If failed:
ERROR
Defined Values
<client_index>
A numeric parameter that identifies a client. The range of permitted
values is 0 to 1.
<qos>
The publish message’s qos. The range is from 0 to 2.

SimCom SIM7500 Series Specifications

General

Brand	SimCom
Model	SIM7500 Series
Category	Control Unit
Language	English