Beginners’ manual Series xx7│Document 26/835; Version E 2│22.04.2005
Saia-Burgess
Controls AG
Confi guring the CPU
Configuring I/O modules with the I/O Builder
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The initialization and configuration of the interface as a modem only allow the
controller to be called. Outgoing calls are not possible.
Protocol timing:
The values for Character Delay Time (CDT) and Answer Delay
Time (ADT) can be set for the communication protocol. If protocol timing is not
selected, the following default settings are applied:
Serial programming:
CDT = 220ms,
ADT = 2000ms.
Programming via modem:
CDT = 1s,
ADT = 10s.
Interface number
: All serial interfaces can be initialized and configured as a
programming interface. Only one interface can support the MPI protocol at any given
time.
Baud rate
: The baud rate must match the setting in the SIMATIC Manager: the
default setting is 19200 baud.
Modem type
: The T813 (analog modem) or the T850 (ISDN modem) may be
selected.
Time-out for hang-up
: The default setting is for an existing modem connection to
be canceled automatically after 30 minutes if there is no traffic. This value can be
changed using parameter type TIMEOUT. The timeout can be disabled with value 0.
i
Further information on MPI settings can be found in manual “26/797 Integrated
system functions Series xx7”, section 8.4 “Initialization of serial programming
interface”.
Serial Interface tab
The serial interfaces on the F5xx modules (Slots B1 and B2) support a maximum
baud rate of either 19200 or 38000 baud. This setting applies to both interfaces on
the F5xx module.
This setting is not supported on the PCD1.M137.
i
Further information on maximum baud rates can be found in manual “26/797
Integrated system functions Series xx7”, section 8.4.6 “Setting the max. baud rate on
Slot B1 (B2)”.
