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130
Analog Input Units
Section 5-4
Off-wire Detection
When a disconnection occurs in an analog input line (voltage input or current
input), the Off-wire Detection Flag turns ON for each input that is enabled in
the number of AD conversion points. The Off-wire Detection Flags are
included in the Analog Status Flags.
When Off-wire Detection is enabled, the value of AD conversion data is set to
7FFF hex. When the input returns to a value within the range that can be con-
verted, the Off-wire Detection function will automatically be turned OFF, and
normal data conversion will occur.
Off-wire Detection functions with input ranges of 1 to 5 V or 4 to 20 mA only.
With the 1 to 5 V input range, an off-wire condition is detected when the input
voltage is below 0.76 V (less than 6%). With the 4 to 20 mA input range, an
off-wire condition is detected when the input current is below 3.04 mA.
User Adjustment
Depending on factors such as the characteristics and connection methods of
the input device, the input can be adjusted to compensate for error in the input
voltage or current. The following diagram shows when compensation is
applied to the conversion line at the two points for 0% and 100%.
The following table shows the input ranges that support user adjustment.
Setting Procedure (Example: DeviceNet Configurator)
1,2,3...
1. In the Network Configuration Window for the Slice I/O Terminal, double-
click the icon of the Slice I/O Terminal that is to be set. Alternatively, right-
click the icon and select
Parameters - Edit
. The Edit Device Parameters
Window will be displayed.
2. Click the
I/O Module
Tab.
3. Click the
Edit
Button on the
I/O Module
Tab Page. The Edit Unit Parame-
ters Window will be displayed.
Input range
Low Limit
High Limit
0 to 5 V
–0.25 to 0.25 V
4.75 to 5.25 V
1 to 5 V
0.8 to 1.2 V
4.8 to 5.2 V
0 to 10 V
–0.5 to 0.5 V
9.5 to 10.5 V
–10 to 10 V
–11 to –9.0 V
9.0 to 11 V
4 to 20 mA
3.2 to 4.8 mA
19.2 to 20.8 mA
0 to 20 mA
–1.0 to 1.0 mA
19 to 21 mA
100%
0%
Conversion data
After adjustment
Before adjustment
Voltage/current
Содержание SMARTSLICE GRT1-DRT
Страница 1: ...OPERATION MANUAL Cat No W455 E1 08 SmartSlice GRT1 Series Slice I O Units ...
Страница 3: ...SmartSlice GRT1 Series Slice I O Units Operation Manual Revised December 2018 ...
Страница 4: ...iv ...
Страница 6: ...vi ...
Страница 20: ...xx EC Directives 6 ...
Страница 62: ...42 Connecting Turnback Cables Section 3 3 ...
Страница 250: ...230 Maintenance Information Window Section 7 3 Maintenance Information Window ...
Страница 292: ...272 GRT1 CP1 L Positioning Unit Section 7 5 ...
Страница 300: ...280 GRT1 END End Unit Section 8 5 Dimensions 11 9 11 9 55 7 1 5 19 5 83 5 2 9 2 9 OMRON ...
Страница 322: ...302 Troubleshooting by Unit Section 9 5 ...
Страница 350: ...330 Explicit Messages Appendix A ...
Страница 354: ...334 Power Consumption and Weight Tables Appendix C ...
Страница 356: ...336 I O Current Consumption Table Appendix D ...
Страница 364: ...344 Revision History ...
Страница 365: ......