WAGO-I/O-SYSTEM 750
Fieldbus Communication 331
750-882 Media Redundancy ETHERNET Controller
Manual
1.5.0
12.3.5.56 Input Fieldbus Variable UDINT Offset (BB
hex
)
This class allows the reading of data from a particular PLC input variable from the
data area for port 2.
With an offset of 2 bytes to the addresses of the "Input Fieldbus Variable UDINT
(BA
hex
)" class, that means for WAGO-I/O-
PRO
or CODESYS the PLC addresses
for the input variables %ID766 ... %ID893.
Information about Using the Offset
"Offset of 2 bytes" means:
If instance 1 of this class is read, you obtain High-Word of the address %ID766
and the Low-Word of the address %ID767, etc.
If instance 128 is read, you obtain only the High-Word of the address %ID893.
Instance 0 (Class Attributes)
Table 358: Input Fieldbus Variable UDINT Offset (BB
hex
) – Class
Attribute ID Access Name
Data type
Description
Default
value
1
Get
Revision
UINT
Revision of this object
1 (0x0001)
2
Get
Max Instance
UINT
Max. number of instances
128 (0x080)
Instance 1...128 (Input variable 1 up to 128)
Table 359: Input Fieldbus Variable UDINT Offset (BB
hex
) – Instance 1...128
Attribute ID Access Name
Data type Description
Default
value
1
Set
Fb_In_Var
UDINT
Fieldbus-Input variable of the SPS 0
Common Services
Table 360: Input Fieldbus Variable UDINT Offset (BB
hex
) – Common service
Servicecod
e
Service available
Service-Name
Description
Class Instance
0E
hex
Yes
Yes
Get_Attribute_Single Supplies contents of the appropriate
attribute
10
hex
No
Yes
Set_Attribute_Single Modifies an attribute value