
B–63833EN/03
9. CONNECTION TO FANUC I/O Link
195
This section describes the specifications of the analog input signals used
with expansion module D.
Item Specifications Remarks
Number of input
channels (Note)
Four channels
Analog input DC –10 to +10 V
(Input resistance: 4.7 MΩ)
DC –20 to +20 mA
(Input resistance: 250 Ω)
Voltage input or current
input can be selected on
channel–by–channel
basis.
Digital output (Note) 12 bits (binary) Represented as two’s
complement
Input/output
correspondence
Analog input Digital output
+10V +2000
+5V or +20mA
0V or 0mA
–5V or –20mA
–10V
+1000
0
–1000
–2000
Resolution 5 mV or 20 µA
Overall precision Voltage input: "0.5%
Current input: "1%
With respect to full scale
Maximum input
voltage/current
"15V/"30mA
Minimum conversion
time (Note)
Ladder scan period of CNC
connected
Number of occupied
input/output points
(Note)
DI = 3 bytes, DO = 2 bytes
NOTE
This analog input module has four input channels. The
digital output section consists of a group of 12 bits within the
three–byte occupied input points. This means that the
channel to be used can be dynamically selected by the
ladder. The channel switching DO point for channel
selection is included in the two–byte occupied output points.
9.6.13
Analog Input Signal
Specifications