UK
Communication between multicode reader O2I1xx and Siemens Simatic S7
17
Setting parameters on function block FB49
4.4
Enter parameters for the CP address�
►
(Are forwarded to the communication function blocks�)
The parameters SEND_DB_BUF, SEND_DBB_NO, RECV_DB_BUF und
RECF_DBB_NO are the start addresses for an intermediate buffer needed for this
coupling�
The parameter RECV_BUF must be declared as absolute, because with
some controller types the width of access may not be transmitted correctly
in case of symbolic declaration�
Function block description FB49
4.5
The function block establishes the telegrams to be sent to the multicode reader
and creates a character string from the received data flow�
The "trigger" input sends a trigger command to the multicode reader with each
positive edge� In addition the receive buffer is deleted�
The "change_group" input sends a change group command to the multicode
reader with each positive edge� The selection is indicated at the inputs "group_nr"
and "conf_nr"� In addition the receive buffer is deleted�
