
B-63330EN/03 4.DESCRIPTION OF PARAMETERS
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4.18 DATA I/O PARAMETERS (DATA NO. 5000 AND LATER)
#7 #6 #5 #4 #3 #2 #1 #0
5000 CDC ETX TCC ECH 422
[Input type] Parameter input
[Data type] Bit
NOTE
After this parameter has been set, the power must be
off turned off then back on for the setting to become
effective.
#0 422 The interface between the host and the remote buffer is:
0: An RS-232-C interface.
1: RS-422 interface.
The system automatically sets this bit by deciding whether the remote
buffer board provides an RS-232-C or RS-422 interface.
#1 ECH At the time of switching between remote and DNC operations (with
protocol A only), the response of SAT is that:
0: 0 is always sent to the data section of SAT (byte position 1).
1: The data section of SET (byte position 1) is echoed back to the
data section of SAT (byte position 1).
#2 TCC The communication code is:
0: ASCII for protocol A.
For protocol B/extended protocol B, DC1, DC2, DC3, DC4,
SYN, and NAK are ISO codes.
1: ISO for protocol A.
For protocol B/extended protocol B, DC1, DC2, DC3, DC4,
SYN, and NAK are ASCII codes.
#3 ETX
0: For protocol A, the message end code is the ASCII/ISO CR code.
For protocol B/extended protocol B, neither CNC resets nor
alarms are posted to the host computer.
1: For protocol A, the message end code is the ASCII/ISO ETX
code.
For protocol B/extended protocol B, the SYN code is sent when
the CNC is reset, and the NAK code when an alarm is issued.
Selection between ASCII and ISO is performed with TCC of this
parameter.
For protocol B/extended protocol B, when this bit is 1, the following
parameters also take effect after the power is turned OFF and then ON
again:
Nos. 5070, 5072, 5073, 5082, 5083
#4 CDC The CD (signal quality detection) of the RS-232-C interface is:
0: Checked.
1: Not checked.