9-6
Analog Input Value When an Error
Occurs
If an error is detected in the process of converting analog input data, the analog input is converted as
shown in the table below. These converted values can tell you if the following errors have occurred.
Error name
Data name Analog input value when an error occurs
Unit I/O Disconnection Detected for Channel
£
Ch1 Data
32767
Ch2 Data
32767
Ch3 Data
32767
Ch4 Data
32767
Unit Over Range for Channel
£
Ch1 Data
Upper limit of convertible range
Ch2 Data
Upper limit of convertible range
Ch3 Data
Upper limit of convertible range
Ch4 Data
Upper limit of convertible range
Unit Under Range for Channel
£
Ch1 Data
Lower limit of convertible range
Ch2 Data
Lower limit of convertible range
Ch3 Data
Lower limit of convertible range
Ch4 Data
Lower limit of convertible range
9 Troubleshooting
9 - 39
NX-series Analog I/O Units User’s Manual for High-speed Analog Input Units (W592)
9-6 Analog Input V
alue When an Error Occurs
9
