Commands
20
13
-0
4
25
7.1.8
Assembly attributes
The attributes of the output object (class 64h) and the input objects (class 65h)
appear in different combinations in the assembly object. 26 assembly instances
can be used in pairs for implicit communication and so there are 13 possible
combinations. These combinations can be selected either via the device display,
the attribute 100 from instance 0 of the assembly object or by specifying the
combination on the PLC (Forward Open).
* access to mixed mode instance for input/output command object
The following comparison shows the relationship between input and output
instances: Input instance = output in 50d.
A combination of the "heartbeat" and the ident status forms the output instance
112 and input instance 162. Refer to appendix B for a more detailed view of the
object model.
attribute 4
attribute 3
attribute 2
attribute 1
Output
instance
Input
instance
Channel size
Required/Generated
size
Output/Input byte
1
2
3
4
5
(conf.)
Mixed
mode
100d
150d
8*
8 / 8
101d
151d
12*
12 / 12
102d
152d
32*
32 / 32
103d
153d
60*
60 / 60
Sepa-
rated
mode
104d
154d
8
8
8
8
32 / 32
105d
155d
12
12
12
12
48 / 48
106d
156d
32
32
32
32
128 / 128
107d
157d
60
60
60
60
240 / 240
108d
158d
8
8
8
8
8
40 / 40
109d
159d
12
12
12
12
8
56 / 56
110d
160d
32
32
32
32
8
136 / 136
111d
161d
60
60
60
60
8
248 / 248
112d
162d
0 / 10
0 / 10
