User's Manual

31 ProBee-ZE20S Series User Guide Rev.0.1
AT+TRANSMITMODE=1<CR> # Set transmit mode to destination IEEE address
OK<CR> # Response
ATZ<CR> # Apply to change
OK<CR> # Response
Send unicast msg # Put the unicast message
+++ # Leave data mode
OK<CR> # Response
AT+TRANSMITMODE=4<CR> # Set transmit mode to sink node in the network
OK<CR> # Response
ATZ<CR> # Apply to change
OK<CR> # Response
Send unicast msg # Put the unicast message
+++ # Leave data mode
OK<CR> # Response
4.2.2 Multicast Data Mode
Multicast data mode can be used for continuous data transmission to a particular group of multiple
devices. Every ZE20S belongs to a certain group by predetermined group ID when form or join the
network.
Multicast data mode can be entered using either ATM or AT+TRANSMITMODE=2. If ATD command is
used, the device will enter the multicast data mode immediately until escaped using “+++” or reset by ATZ.
If the device is reset, it will not enter the multicast data mode in this case.
On the other hand, if AT+TRANSMITMODE=2 is used to enter the multicast data mode, the device enters
the multicast data mode again whenever the device is reset. To disable the multicast data mode, escape
the data mode first by using “+++” string and use AT+TRANSMITMODE=0 and reset the device to apply
the setting permanently.
AT commands used for the multicast data mode are as below.
AT+GROUPID=<value>, where <value> is 16-bit group ID for multicast data mode.
Set Group ID of the device. The device will receive the multicast data sent to this Group ID.
AT+DESTGROUPID=<value>, where <value> is 16-bit destination group ID for multicast data mode.
Set destination Group ID of the device.