Programming manual M238 | 3 MB - BERGER - POSITEC

Serial Line Configuration
Adding a Modem
Set the parameters as described in the following table:
Parameter Description
Start Character If 0, no start character is used in the frame. Otherwise, in Receiving
Mode the corresponding character in ASCII is used to detect the
beginning of a frame. In Sending Mode, this character is added at the
beginning of the frame.
First End
Character
Second End
Character
Frame Length
Received
Frame Received
Timeout (ms)
Serial Line
Settings
If 0, no first end character is used in the frame. Otherwise, in Receiving
Mode the corresponding character in ASCII is used to detect the end of a
frame. In Sending Mode, this character is added at the end of the frame.
If 0, no second end character is used in the frame. Otherwise, in
Receiving Mode the corresponding character in ASCII is used to detect
the end of a frame. In Sending Mode, this character is added at the end
of the frame.
If 0, this parameter is not used. This parameter allows the system to
conclude an end of frame at reception, when the controller received the
specified number of characters.
NOTE: This parameter cannot be used simultaneously with Frame
Received Timeout (ms).
If 0, this parameter is not used. This parameter allows the system to
conclude the end of frame at reception after a silence of the specified
number of ms.
Parameters specified in the Serial Line configuration window
(see page 124).
NOTE: In the case of using several frame termination conditions, the first condition
to be TRUE will terminate the exchange.
For more details about how to add a Modem to the ASCII Manager, refer to the
Adding Modem to a Manager section (see page 148).
130 EIO0000000384 04/2012