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8.2 Troubleshooting
8.2.5 When A/D conversion completed flag does not turn ON during use in normal mode
8
TROUBLESHOOTING
8.2.5 When A/D conversion completed flag does not turn ON during
use in normal mode
8.2.6 Checking the A/D converter module status using GX Developer
system monitor
When the A/D converter module detail information is selected in GX Developer system
monitor, error code, LED ON status and status of the intelligent function module switch
setting can be checked.
(1) Operating GX Developer
[Diagnostics] [System monitor] Select the A/D conversion module checking the
status.
(2) Module Detail Information
(a) Checking the function version and product information
The function version and product information of the A/D converter module are
displayed in the product information field.
(b) Checking the error code
The error code stored in buffer memory address 19 (Un\G19) of the A/D converter
module is displayed in the Present Error field.
(When the button is pressed, the contents displayed in the Present
Error field are displayed in the No. 1 field.)
Check item Corrective action
Is 24VDC external power supply being supplied? (Q66AD-DG
only)
Check that the external power supply terminals (between terminals
No. A19 and A20 or B19 and B20) are supplied with a 24VDC
voltage.
Is an input signal error being generated? Check the input signal error detection flag (Un\G49).
Module Detailed Information
Error History
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