Siemens SIMATIC S7-200 System Manual page 340

S7-200 Programmable Controller System Manual
Table 10-12 Configuration Table for the Modem Module, continued
Callback Telephone Number Block (optional)
Byte Offset
24
24+ callback
number
:
:
Messaging Telephone Number Block (optional)
Byte Offset
M
M +
messaging
number length
:
:
Message Block (optional)
Byte Offset
N
N+2
N+3
:
:
P
P + length of
message 1
:
:
The Modem module re-reads the configuration table when these events occur:
Within five seconds of each STOP-to-RUN transition of the S7-200 CPU (unless the modem
-
is currently online)
Every five seconds until a valid configuration is found (unless the modem is currently online)
-
Every time the modem transitions from an online to an offline condition
-
326
Description
Callback Telephone Number 1 - - A string representing the first telephone number that is
authorized for callback access from the EM 241 Modem module. Each callback telephone
number must be allocated the same amount of space as specified in the callback telephone
number length field (offset 6 in the Configuration Block).
Callback Telephone Number 2
:
Callback Telephone Number n
Description
Messaging Telephone Number 1 - - A string representing a messaging telephone number
which includes protocol and dialing options. Each telephone number must be allocated the
same amount of space as specified in the messaging telephone number length field (offset 7
in the Configuration Block).
The messaging telephone number format is described below
Messaging Telephone Number 2
:
Messaging Telephone Number n
Description
V memory offset (relative to VB0) for the first message (2 bytes)
Length of message 1
Length of message 2
Length of message n
Message 1 - - A string (120 bytes max.) representing the first message. This string includes
text and embedded variable specifications or it could specify a CPU data transfer.
See the Text Message Format and the CPU Data Transfer Format described below.
Message 2
:
Message n