3.4 Programming Mode
3-30
Table 3.4-10 Display of I/O signal status in hexadecimal notation (example)
Hexadecimal
on the LED
monitor
–: No corresponding control circuit terminal exists.
* (XF), (XR), and (RST) are assigned for communications control. Refer to “Displaying control I/O signal terminals
under communications control” given 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.” 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)
For details about input commands sent through the communications link, refer to the “RS-485 Communication
User's Manual” or the instruction manual of communication-related options as well.
■ Displaying control I/O signal terminals on optional digital interface cards
The LED monitor can also show the signal status of the terminals on the optional digital interface cards, same as
the signal status of the control circuit terminals.
The following table lists the assignment of digital I/O signals to the LED segments.
Table 3.4-11 Display of I/O Signal Status with ON/OFF of each LED segment
(Digital interface cards)
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