![background image](http://html1.mh-extra.com/html/omron/smartslice-grt1-drt/smartslice-grt1-drt_operation-manual_742293035.webp)
15
Unit Numbers and I/O Allocations
Section 2-2
I/O Allocation
Example
I/O data is allocated to the I/O Units in the order that they are connected to the
Communications Unit, regardless of the I/O Units’ models. Unless special
allocation data settings are selected with the Communications Unit’s Pro-
gramming Device, data is allocated from the first word starting with the Com-
munications Unit’s Status Flags and then the leftmost I/O Unit’s data.
Data in the Master’s Input and Output Areas is allocated to the Slice I/O Units
based on their unit numbers.
Note
I/O Units with bit allocations (such as the GRT1-ID4/OD4) are allocated data
in 2-bit units. I/O Units with word allocations (such as the GRT1-AD2) are allo-
cated data in 1-word units. The following example shows the allocations to
Output Units.
#1
ID4
#2
ID4
#3
ID4
#4
AD2
#6
OD4
#7
ROS2
#8
OD8
#9
OD4
#5
ID8
First Word
+1
+2
+3
Communications Unit Status
Unused
#3
#2
#1
#4
+4
#5
First Word
+1
+2
Unused
#7 #6
Unused
Unused
#9
Some areas may be unused when data is allocated.
Word
Input Area
0
8
15
0
15
8
Output Area
Unused
#8
Commu-
nications
Unit
Data is allocated in 2-bit units
to I/O Units that require 4 bits,
so there may be unused areas
as shown in the following table.
Slice I/O Terminal Configuration
#1
OD4
#2
OD4
#3
OD4
#4
ROS2
#6
DA2
#5
OD4
#8
OD8
#7
OD4
+0
+1
+2
+3
#
5
#3
#2
#1
#6
+4
Word
8
15
0
Unused
#
5
#
4
Unused
#7
+5
Unused
#8
Communi-
cations
Unit
Data in these areas will not be output.
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: ......