Omron GRT1-PNT Operation Manual page 57

Device name setting and I/O allocation
Allocated Data Size
Communication Unit's
Status Flags
The following example shows the mapping of Output Units.
#1
Communi-
OD4
cations
Unit
Word
+0
+1
+2
+3
/i
Data type
I/O data (input and output)
Communication Unit status flags
SmartSlice I/O Unit communication
participating/withdrawn flags
I/O data (inputs) + Communication
Unit status flags
These flags can be used to monitor the status of the connection between the
GRT1-PNT and the SmartSlice I/O Units as well as the status of the
SmartSlice I/O Units themselves. The status flags take up 1 word and the
information is transferred to the Controller as part of the Input data. Please
refer to 3-5-1 Communication Unit's Status Flags.
SmartSlice I/O Unit configuration
#2 #3 #4
OD4 OD4
ROS
Data is allocated in 2-bit units
to I/O Units which require 4 bits.
There may be unused areas
as shown in the following table.
15
8
#5 #4
#3
Unused
#6
Data size
GRT1-ID4(-1) / GRT1-OD4(-1): 4 bits per Unit.
GRT1-ROS2: 2 bits.
GRT1-DA2V/DA2C: 2 words output data e.g.
1 word
Participating flags: 4 words
Withdrawn flags: 4 words
Total: 8 words
Amount of I/O data being used + 1 word
Section 3-1
#5 #6
2 OD4 DA2V
0
#2 #1
#5
45