Example: KNX/EIB bus control and event notifications via SMS

Installing USB GSM adapter in the Logic Machine 2

• We use Huawei E173 modem in our tests
• The modem has to be plugged into any of USB ports of LM2 and it starts operating immediately
• Specific functions should be added into user script library with PIN code setting and telephone number white-list which will be able to receive and send in SMS messages

Command syntax

Write to bus:

• W ALIAS VALUE

Read from bus:

• R ALIAS
• On read request, script will reply with SMS message containing current value of selected object

ALIAS can be:

• Group address (e.g. 1/1/1)
• Name (e.g. Obj1). If name contains spaces then it must be escaped using double quotes (e.g. “Room Temperature”)

Note!

• Object data type and name must be set in Logic Machine -> Objects tab. Otherwise script won’t be able to read and write to object
• Only ASCII symbols are accepted in the message

Examples

Binary write (send the following SMS to switch kitchen lights on):

• W 1/1/1 true

Scaling write (send the following SMS to set value 67% for red LED):

• W LED1Red 67

Temperature (floating point) write (send the following SMS to make setpoint in the living room to 22.5 degrees):

• W “Room Setpoint” 22.5

Read (send the following SMS to read the security panel value:

• R 2/1/1