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104
Analog Input Functions and Operating Procedures
Section 3-6
Set Values and Stored
Values
Refer to
3-7-1 Adjustment Mode Operational Flow
for further details.
Note
For the CIO word addresses, n = CIO 2000 + (unit number x 10).
The input disconnection detection function can be used when the input signal
range is set for 1 to 5 V (4 to 20 mA).
3-6
Analog Input Functions and Operating Procedures
3-6-1
Input Settings and Conversion Values
Input Numbers
The Analog Input Unit converts analog inputs specified by input numbers 1 to
8 (1 to 4 for CJ1W-AD041-V1) only. To specify the analog inputs to be used,
turn ON from a Programming Device the D(m) bits in the DM Area shown in
the following diagram.
Note
There are only four inputs for the CJ1W-AD041-V1.
The analog input sampling interval can be shortened by setting any unused
input numbers to 0.
Sampling interval = (1 ms) x (Number of inputs used) (See note.)
Item
Contents
Input to be adjusted
Sets input to be adjusted.
Leftmost digit: 2 (fixed)
Rightmost digit: 1 to 8 (1 to 4 for CJ1W-AD041-V1)
Offset (Offset Bit)
When ON, adjusts offset error.
Gain (Gain Bit)
When ON, adjusts gain error.
Down (Down Bit)
Decrements the adjustment value while ON.
Up (Up Bit)
Increments the adjustment value while ON.
Set (Set Bit)
Sets adjusted value and writes to EEPROM.
Clr (Clear Bit)
Clears adjusted value. (Returns to default status)
Conversion value for
adjustment
The conversion value for adjustment is stored as 16 bits
of binary data.
Disconnection detection
0:
No disconnection
1:
Disconnection
Alarm Flags
Bit 12: Input value is outside adjustment limits
(in adjustment mode)
Bit 13: Input number setting error
(in adjustment mode)
Bit 14: EEPROM write error (in adjustment mode)
Bit 15: Operating in adjustment mode
(always 1 in adjustment mode)
Input signal range
Voltage/current
1 to 5 V
0.3 V max.
4 to 20 mA
1.2 mA max.
15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00
Bit
D(m)
Input 2
Input 1
0: Not used
1: Used
Input 4
Input 3
Input 6
Input 5
Input 8
Input 7
Summary of Contents for CJ1W-AD041-V1
Page 3: ...iv...
Page 5: ...vi...
Page 9: ...x TABLE OF CONTENTS...
Page 15: ...xvi...
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...
Page 425: ......