Troubleshooting; Ras Information - Toshiba AD268 User Manual

7. Troubleshooting

7. Troubleshooting

7.1 RAS information

The RUN LED is provided on the front of the DA264. When the DA264 is operating normally,
this LED is lit.
Also the module status information is provided in the DA264's buffer memory (addresses
H800C to H800F). This information is useful for troubleshooting.
Refer to section 6 for the module status information and how to read it.
7.2 Troubleshooting
The table below shows the trouble and its remedy.
Trouble
Output type
setting error
D/A
conversion
data limit over
External 24V
error
56
Analog I/O Modules (AD268 / DA264 / TC218)
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Module LED
status info
Bit 8 is ON ON
(if the error
occurs in all
channels, it
is OFF)
Bit D is ON ON
Bit E is ON OFF
Module operation
The D/A conversion Invalid output type
continues based on parameter was set.
the previous setting.
The D/A conversion The written D/A
data of the channel conversion data is
is limited by the limit out of the range.
value.
The D/A conversion
Internal 15V
is stopped. Output
voltage is not
signal is 0V/0mA.
normal.
PART 2 DA264
Cause Remedy
Set the correct
output type
parameter.
Check the output
rage and write
the correct data.
Check the
external 24Vdc
power supply.