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MELSEC-Q
8 TROUBLESHOOTING
8.2.4 When analog output value is not held
Check item Action to be taken
Is the HOLD/CLEAR setting correct?
Check the Switch 3 setting of the intelligent function
module switch setting on GX Developer.
Is the D/A converter module used on a
MELSECNET/H remote I/O station?
Take corrective actions, referring to POINT (2) in
Section 3.2.2.
8.2.5 Checking the D/A converter module status using GX Developer system monitor
When the D/A converter module detail information is selected in GX Developer system
monitor, the function version, Error code, LED on status and status of the intelligent
function module switch setting can be checked.
(1) Operating the GX Developer
[Diagnostics] [System monitor] Select the D/A conversion module checking
the status.
Module's Detailed Information
(2) Module Detailed Information
(a) Checking the function version
The function version of the D/A converter module is displayed in the product
information field.
(b) Checking the Error code
The error code stored in buffer memory address 19 (Un\G19) of the D/A
converter module is displayed in the latest Error code field.
(When the Error History
button is pressed, the contents displayed in the
latest Error code field are displayed in the No.1 field.)
Function version
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