FANUC Power Mate i-MODEL H CONNECTION MANUAL (HARDWARE)

10. CONNECTION TO PERIPHERALS
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(1)The NC machine sends a DC1 code.
(2)Upon receipt of the DC1 code, the I/O device starts data transmission
to the NC machine.
(3)While the NC machine is processing, it sends a DC3 code.
(4)Upon receipt of the DC3 code, the I/O device stops data transmission
to the NC machine.
When the DC3 code is sent, the I/O device is to stop data transmission
after sending 10 or less characters. If more than 10 characters are sent,
alarm no.087 occurs.
(5)The NC machine sends another DC1 code when its processing is
completed.
(6)Upon receipt of the DC1 code, the I/O device resumes data
transmission to the NC machine in order to send the remaining data.
(7)Upon completion of data read operation, the NC machine sends
another DC3 code.
(8)The I/O device stops data transmission.
1ms or more
10ms or more
ER (output)
RS (output)
SD (output)
RD (input)
DR (input)
CS (input)
DC1 DC3 DC1 DC3
100ms or more
10 or less characters
ER code
Fig. 10.1.1 (b)
When the NC receives
data (for reading into
memory)

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