3-22
Table 3.18 Segment Display for I/O Signal Status in Hexadecimal Format
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
(RST)* (XR)* (XF)* -
-
-
-
-
-
X5
X4
X3
X2
X1 REV FWD
Output
terminal
- -
-
-
-
-
-
30
A/B/C
-
-
-
-
-
-
Y2
Y1
Binary 0
0
0
0
0
0
0
0
0
0
0
0
0
1
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 (MEH448b) 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 optional DI/O interface card
The LED monitor can also show the signal status of the terminals on the optional DI/O interface card,
just like the control circuit terminals.
Table 3.19 lists the assignment between LED segments and DI/O signals.
Table 3.19 Segment Display for External Signal Information
Segment
LED4 LED3 LED2 LED1
a —
DO0
DI8
DI0
b —
DO1
DI9
DI1
c —
DO2
DI10
DI2
d —
DO3
DI11
DI3
e —
DO4
DI12
DI4
f —
DO5
—
DI5
g —
DO6
—
DI6
dp —
DO7
— DI7
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
-
-
-
DI12 DI11 DI10 DI9
DI8
DI7
DI6
DI5
DI4
DI3
DI2
DI1
DI0
Output
terminal
- -
-
-
- - -
-
DO7 DO6 DO5 DO4 DO3 DO2 DO1 DO0