3-22
Table 3.18 Segment Display for I/O Signal Status in Hexadecimal Format
LED No. LED4 LED3 LED2 LED1
Bit 15 14 1312111098765432 1 0
Input
terminal
(RST)* (XR)* (XF)*
- - - - - - X5X4X3X2X1 REV
FWD
Output
terminal
- - - - - - -
30
A/B/C
------ Y2 Y1
Binary 0 0 000000000001 0 1
Example
Hexa-
decimal on
the LED
monitor
– No corresponding control circuit terminal exists.
* (XF), (XR), and (RST) are assigned for communication. Refer to " Displaying control I/O signal
terminals under communications control" below.
Displaying control I/O signal terminals under communications control
Under communications control, input commands (function code S06) sent via RS-485 or other
optional communications can be displayed in two ways: "with ON/OFF of each LED segment" and "in
hexadecimal format." The content to be displayed is basically the same as that for the control I/O
signal terminal status display; however, (XF), (XR), and (RST) are added as inputs. Note that under
communications control, the I/O display is in normal logic (using the original signals not inverted).
Refer to the RS-485 Communication User's Manual for details on input commands sent through
RS-485 communications and the instruction manual of communication-related options as well.
Displaying control I/O signal terminals on digital I/O interface option
The LED monitor can also show the signal status of the terminals on the digital I/O interface option,
just like the control circuit terminals.
Table 3.19 lists the assignment between LED segments and I/O signals.
Table 3.19 Segment Display for External Signal Information
Segment LED4 LED3 LED2 LED1
a — O1 I9 I1
b — O2 I10 I2
c — O3 I11 I3
d — O4 I12 I4
e — O5 SEL I5
f — O6 — I6
g — O7 — I7
dp — O8 — I8
LED No. LED4 LED3 LED2 LED1
Bit 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
Input
terminal
-
- -SELI12I11I10I9I8I7I6I5I4I3 I2 I1
Output
terminal
- -
- - - - - - O8 O7 O6 O5 O4 O3 O2 O1
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