Filter
Top Products
α
2
Simple Application Controllers
SMS/SMR/CD Functions and the Modem Setting 2
2 - 10
2.3 The SMR Function Block
The GSM short message (SM) can be sent from a cell phone, a normal phone (with SM func-
tionality) or PC to a GSM modem that is connected to an
α
2 controller.
α
2 controller detects the delivery of SM by the modem and downloads the SM from the
modem.The Short Message Receive FB (SMR FB) searches for the occurrence of a command
in the SM.
The command is given as text string in the FB parameter.In case the command text is exactly
included in the SM, outputs are changed.
To enter or edit the SMR parameters, double click on the icon to open the Short Message
Receiving dialog box described in Section 2.3.1.
A) The Input Signal
The
α
2 controller will receive a message when the input pin is activated.
For normal operation the input must be ON.When Input is OFF, all output values are hold and
the function block doesn't care an incoming short message.Input is ON when left open(not
connected).When Reset and Input are ON at the same time, only Reset becomes active.
B) The Reset Signal
Resets the outputs when ON.
Reset takes priority over Input and takes priority over a command in an incoming short
message.Reset is OFF when not connected.
C) The Output Signal
The output is set ON, when the switch ON command is found in the received short message.
The output is set OFF, when the switch OFF command is found in the short message.
When Reset is ON, the bit output is reset (OFF).When Input is OFF the bit output value is hold.
D) The Word Output
Word output for transferred values.
The output is set ON, when the switch ON command is found in the received short message.
The output is set OFF, when the switch OFF command is found in the short message.
When Reset is ON, the bit output is reset (OFF).When Input is OFF the bit output value is hold.
A)
(C
(D
B)