Special Features of the C7-635
4-9
C7-635 Control System
A5E00155581-04
4.4 Status Display of the Digital Onboard I/O
I/O Status Display
There are no LEDs for displaying the status of the C7-635 I/O. You can configure a
screen to display the I/O status (see Figure 4-5).
The represented values must be read as a direct process image of the DI and an
internal process image of the DO of the digital C7-635 I/O, and displayed in the
BIN format.
Note that when the C7-CPU is in STOP mode, the real process status DO is 0.
However, the last process status set by the program is displayed.
The following data are displayed:
= Selection of
10100010 +1.7 - +1.0
DO:10101000 +0.7 - +0.0
ÀÁ
DI:11100010 +0.7 - +0.0
11101010 +1.7 - +1.0
10101010 +2.7 - +2.0
Figure 4-5 DI/DO Status Display
Table 4-2 Description of the DI/DO Status Display in Figure 4-5
Item
Description
À Signal status of the DI/DO
• 1 DI/DO set
• 0 DI/DO reset
Á Pin Name DI/DO
Note
The values of the DI/DO are read in and displayed in the time configured with
ProTool. Changes made between these two occurrences are not displayed.
Siemens Controls
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