
B-63322EN-1/01 9. BINARY INPUT OPERATION FUNCTION
-57-
9.2
TRANSFER RATE
After every unit time set for the appropriate parameter, the CNC
extracts data of 2 * N + n bytes (where N is the number of axes, n is
equal to 1 when auxiliary functions are not used and 5 when they are
used.) from the remote buffer. To achieve smooth machining without
any interruption of pulse distribution during machining, the baud rate
of transfer between the host computer and the remote buffer must be
at least
(2 * N + n) * 11/T * 1000 (bps) (where T is the unit time.).
For example, when three axes are used, auxiliary functions are not
used, and the unit time is 2 msec,
the baud rate must be at least
(2 × 3 + 1) bytes × 11 bits/byte/2 msec × 1000 = 38500 bps.