User's Manual

ER-600 User Manual
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6) AT+UPDATE=url,md5
Update firmware, with reply OK or ERROR. The reply OK does
not mean update is complete, but the command has been
received and the update will start. To check whether update is
successful, send AT+INFO? after 5 minutes and check whether
the firmware version is changed.
url: download URL of the new firmware, beginning with
"http://". Make sure the device can access this url, for example
it should not be a public URL if the device has a private net
card.
7) AT+UPDATEALL=url,md5
Update firmware and restore to default settings, with reply OK
or ERROR.
url: download URL of the new firmware, beginning with
"http://". Make sure the device can access this url.
8) AT+DTU&IMEI?
Query the router’s IMEI number, with the following reply:
OK:IMEI
9) AT+DTU&VER?
Query the router’s version, with the following reply:
OK:ver
10) AT+CM&TYPE?
Query protocol type, with the following reply:
OK:prot
Prot: TCP, UDP or ETCP
11) AT+CM&HBI?
Query heartbeat interval, with the following reply:
OK:interval
Heartbeat interval is in seconds.
12) AT+CM&HBT?
Query heartbeat timeout, with the following reply:
OK:timeout
Heartbeat timeout is in seconds.
13) AT+SER&BAUD?
Query user serial port baud rate, with the following reply:
OK:baud
Baud: 2400/4800/9600/19200/38400/57600/115200
14) AT+SER&SIZE?
Query user serial port data bits, with the following reply:
OK:size
size: 8/7/6/5