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4
Features and Functions
Section 1-1
Input Disconnection
Detection Function
The input disconnection detection function can be used for analog inputs
within an input signal range of 1 to 5 V (4 to 20 mA). Any input under 0.3 V will
be regarded as a disconnection. For details, refer to
Input Disconnection Detection Function
Peak Value Hold Function
The peak value hold function holds the maximum digital conversion value for
every input (including mean value processing). This function can be used with
analog input. The following diagram shows how digital conversion values are
affected when the peak value hold function is used. For details, refer to
6-6-3 Peak Value Hold Function
Output Hold Function
The output hold function can be used to hold the analog output value at any
preset value when there is a fatal error at the CPU Unit or when specified by
the CPU Unit. When output is stopped, CLR, HOLD, or MAX can be selected
for output. For details, refer to
or
.
Disconnection
Analog Input Unit
CPU Unit
Detection Flag
Peak hold bit
Analog Output Unit
CPU Unit
Output Enable
Flag OFF
CLR/HOLD/MAX
Summary of Contents for CJ1W-AD041-V1
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Page 99: ...76 Handling Errors and Alarms Section 2 8...
Page 191: ...168 Handling Errors and Alarms Section 4 8...
Page 243: ...220 Handling Errors and Alarms Section 5 8...
Page 381: ...358 Handling Errors and Alarms Section 7 10...
Page 385: ...362 Dimensions Appendix A...
Page 395: ...372 Sample Programs Appendix B...
Page 396: ...373 Appendix C Data Memory Coding Sheets...
Page 417: ...394 Data Memory Coding Sheets Appendix C...
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