Yaskawa i80M Connecting Manual - Manual (Page 154)

(iii)
(iv)
the
(v)
the
(vi) The NC transmits control code via the send data (SD) line.
When triggered by code the remote equipment sends the part program data to
NC via the receive data
When the NC reads the EOR code (ER or %), it transmits control code DC3, and at
same time, turns OFF the request-to-send signal.
The remote equipment reads code DC3, and then simultaneously stops data trans-
mission and turns OFF the clear-to-send signal.
(f) When the above part progrm storage operation is completed, the editing state
putput opens. The external reset signal is then closed if no alarm condition exists.
(9)
(h)
( i )
(1)
(k)
--- machine is then placed in the label skip state,
Close the external verification (EVER) signal.
--- In the same manner as indicated in steps (i) through (vi) above, the NC part program
data is compared with the external one.
During comparison, the EDTS output is closed.
The EDTS output opens again upon completion of comparison.
If no alarm condition exists, close the memory operation (M EM) mode.
Close the external reset signal.
--- The program pointer then returns to the beginning of the part program just checked.
If a number of part programs are checked altogether, the pointer returns to the beginning
of the last part program.
(To choose any other part program, use the “external work
number search” feature of the “external data input” function).
Close the cycle start (ST) input.
--- Automatic operations are then performed according to the selected program.
When FIN signal processing is carried out in compliance with the M02 or M30 command
attached to the end of the part program, automatic operations come to an end.
The time chart of the signals involved in the above operations is presented in Fig. 20.15
Edit mode
Memory operation mode
External reset input
Reset state output
External input input
External verification input
External memory clear
Automatic operation start
Automatic operation startup state
M 03 decoded output
MST completion input
Editing state output
Request to send
to send
2
3 S e n d d a t a
Receive data
Fig. External Input and External Verification
tion Example Time
154