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Symbol
SMS_SEND
TIMER_POL
READY
BUSY
ERROR
STATUS
RECV_DATETIME
RECV_TELNO
RECV_MESSAGE
SMS_NDR
POLLING
ENO
Sending and Receiving SMS Messages with MD720-3
Entry ID: 25545680,
V1.0,
Data type
BOOL
Starts the send process
Reacts only to a positive edge
TIME
Timer for receive polling
When this timer has expired, polling of the received data will
be triggered
If this timer expires while a send operation is active, the
received SMS messages will not be fetched before the next
cycle
Permissible value: You can enter any time value in S7
format, for example: T#1M
BOOL
Sending and receiving an SMS message is possible only
when TRUE
If initialization was completed successfully, "READY" will be
set to TRUE
If the "SMS_SR_XXXX" block the busy with initializing the
modem, the sending process or receive polling,
READY=FALSE is set
BOOL
If the "SMS_SR_XXXX" block is busy with initializing the
modem, the sending process or receive polling,
BUSY=TRUE is set
As soon as the above operations are complete, BUSY will
be set to FALSE
BOOL
Provides feedback if an error occurs when executing a
routine.
Is TRUE for one cycle only.
Default value: FALSE
WORD
When ERROR = TRUE, it returns the status to narrow down
the cause of the error (for only one cycle).
(see chapter 2.5).
DATE_AND_
Time stamp of the received SMS message
TIME
STRING[24]
Sender's telephone number
STRING[170]
Receive SMS message
BOOL
Signals that an SMS message has been received.
The RECV_DATETIME, RECV_TELNO and
RECV_MESSAGE parameters are not valid until this output
is set. The user must make sure to back up this data
immediately after setting this bit.
TRUE for only one cycle.
BOOL
Indicates that receive buffer polling of the modem is active.
BOOL
Release output.
12/2013
Explanation
13
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