Toshiba AS311 User Manual page 48

5. Operation Procedure
Explanation for this sample program:
(1) The "write sequence for message transmitting" is programmed on Subroutine
No. 1.
(2) To start transmitting, set the message (ASCII characters) into D0200 and after.
Then set R0110 to ON.
The message length is maximum 128 bytes (64 words) in this sample program.
(3) When R0110 is set to ON while the AS311 is ready, the Subroutine No. 1 will be
called and the message transmitting will be started.
(4) When the message is transmitted normally, R0201 will come ON. Then R0110 will
be reset to OFF.
(5) When an error has occurred in transmitting the message, R0301 will come ON and
the error information will be stored in D3010. For details of the error information,
refer to section 6.2.4.
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ASCII Interface Module (AS311)