
B-63530EN/03 4.DESCRIPTION OF PARAMETERS
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0020
I/O CHANNEL: Selection of an input/output device or selection of input
device in the foreground
This parameter can also be set on the “Setting screen”.
[Data type] Byte
[Valid data range] 0 to 35
The CNC provides the following interfaces for data transfer to and
from the host computer and external input/output devices:
• Input/output device interface (RS-232C serial port 1 or 2)
• Remote buffer interface (RS-232C/RS-422)
• DNC1/DNC2 interface
In addition, data can be transferred to and from the power mate CNC
via the FANUC I/O Link.
This parameter selects the interface used to transfer data to and from
an input/output device.
Setting Description
0 or 1 RS-232C serial port 1
2 RS-232C serial port 2
3 Remote buffer interface
4 Memory card interface (NC side)
5 Data server interface
6
The DNC operation is performed or M198 is specified by
FOCAS1/Ethernet or DNC1/Ethernet.
7 Memory card interface (touch panel side)
10 DNC1/DNC2 interface, OSI-Ethernet
12 DNC1 interface #2
15
M198 is specified by FOCAS1/HSSB. (Bit 1 (NWD) of
parameter No. 8706) must also be specified.)
16
The DNC operation is performed or M198 is specified by
FOCAS1/ HSSB (port 2).
20
21
22
to
34
35
Group 0
Group 1
Group 2
to
Group 14
Group 15
Supplemental remark 1
If the DNC operation is performed with FOCAS1/HSSB, the
setting of parameter No. 20 does not matter. The DMMC signal
<G042.7> is used.
Supplemental remark 2
If bit 0 (IO4) of parameter No. 110 is set to control the I/O
channels separately, the I/O channels can be divided into four
types: input and output in the foreground and input and output in
the background. If so, parameter No. 20 becomes a parameter for
selecting the input device in the foreground.
Data is transferred between the CNC and a
power mate CNC in group n (n: 0 to 15) via the
FANUC I/O Link.