Creating Programs
4.3.4 Status Information (12-bit mode)
With the analog output unit, the following information can be monitored in the external input
area WX.
Status information
I/O No.
Description
X20
Analog output unit power
X21-X23
Used in the system
X24
CH0 data writing status
X25
CH1 data writing status
X26
CH2 data writing status
X27
CH3 data writing status
X28-X2F
Used in the system
(Note 1): Output data and output CH switch flag are allocated to the same I/O number. Data error can be detected
successfully with the flags when the digital input value is within the range of K-4096 to K4095.
Even when the digital input value is out of the range, however, data conversion may be mistakenly conducted.
To prevent this problem, be sure to set up the program to check the upper and lower limits of the digital value.
4-22
0: OFF, 1:ON、
0:Normal, 1:Error (Note 1)
An error occurs when data written to the memory area (WY2/WY3) is
out of each range, and the data conversion is not performed. The
error is cleared when data within the range is written and the
conversion is performed.