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90
Overview of Analog I/O Units
Section 5-1
5-1
Overview of Analog I/O Units
This section provides an overview of Analog I/O Units, including details on
functions and setting methods for each Unit.
5-1-1
Analog I/O Units
In addition to the functions common to the GRT1 Series (backup, restore,
online conversion, etc.), other functions specific to Analog I/O Units (scaling,
peak/bottom hold, etc.) are available. Analog Input Units are also able to inter-
nally perform math on analog input values, which previously required ladder
programming in the host PLC. Analog data can be selected from the six val-
ues obtained from math operations and allocated as I/O in combination with
Generic Status Flags or other status information. The Setting Tool can be
used to allocate this status data, and to set functions specific to Monitor/Ana-
log I/O Units and perform monitoring.
5-1-2
Comparison with Earlier Models
Analog Input Units
Unit
GRT1 Series
DRT2 Series
Model
GRT1-AD2
DRT2-AD04
Analog points
2 inputs
4 inputs
Input range (signals)
0 to 5 V, 1 to 5 V, 0 to 10 V, –10 to 10 V, 0 to 20 mA, 4 to 20 mA
AD conversion cycle
2 ms/2 points
By setting the number of conversion
points (1 to 4 points), the conversion
cycle can be shortened (e.g., 4 points: 4
ms max.)
Note
The conversion cycle will be
slightly different when the math
operations are used.
AD conversion data
0 to 5 V, 1 to 5 V, 0 to 10 V, 0 to 20 mA, 4 to 20 mA: 0000 to 1770 hex
–10 to 10 V: F448 to 0BB8 hex
Note
Two’s complement
Resolution
1/6,000 (full scale)
Unit power supply
Supplied from slice bus.
Supplied from communications power
supply.
Communications power supply cur-
rent consumption
None
90 mA max.
Overall accuracy 25°C
Voltage input:
±
0.3% FS; Current input:
±
0.4% FS
−
10 to 55°C
Voltage input:
±
0.6% FS; Current input:
±
0.8% FS
Allocated I/O data
Default: Analog input values for 2 points
The Setting Tool can be used to allocate
peak value, bottom value, top value, val-
ley value, rate of change, comparator
results, etc.
Default: Analog input values for 4 points
The DeviceNet Configurator can be used
to allocate peak value, bottom value, top
value, valley value, rate of change, com-
parator results, Generic Status Flags,
etc.
Input switching (Sets number of AD
conversion points)
Supported. (Set using DIP switch: Select
either 1 or 2 points)
Supported (Set using DeviceNet Config-
urator: Select from 1 to 4 points)
Input range switching
Using DIP switch: Inputs 0 and 1 share
setting.
Using Setting Tool: Can be set sepa-
rately.
• Using DIP switch: Inputs 0 and 1 share
setting, Inputs 2 and 3 share setting.
• Using DeviceNet Configurator: Inputs 0
to 3 set separately.
Node address setting
No setting required.
Set using the rotary switches or the
DeviceNet Configurator.
Baud rate setting
No setting required.
Automatically detected: Uses baud rate
set for Master Unit.
Summary of Contents for SMARTSLICE GRT1-DRT
Page 1: ...OPERATION MANUAL Cat No W455 E1 08 SmartSlice GRT1 Series Slice I O Units ...
Page 3: ...SmartSlice GRT1 Series Slice I O Units Operation Manual Revised December 2018 ...
Page 4: ...iv ...
Page 6: ...vi ...
Page 20: ...xx EC Directives 6 ...
Page 62: ...42 Connecting Turnback Cables Section 3 3 ...
Page 250: ...230 Maintenance Information Window Section 7 3 Maintenance Information Window ...
Page 292: ...272 GRT1 CP1 L Positioning Unit Section 7 5 ...
Page 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 ...
Page 322: ...302 Troubleshooting by Unit Section 9 5 ...
Page 350: ...330 Explicit Messages Appendix A ...
Page 354: ...334 Power Consumption and Weight Tables Appendix C ...
Page 356: ...336 I O Current Consumption Table Appendix D ...
Page 364: ...344 Revision History ...
Page 365: ......