WAGO I/O-SYSTEM 750, Manual, Page: 319 / 450

WAGO-I/O-SYSTEM 750 Fieldbus Communication 319
750-882 Media Redundancy ETHERNET Controller
Manual
1.5.0
12.3.5.44 Output Fieldbus Variable UDINT Offset (AD
hex
)
The class enables the exchange of data from a particular PLC output variable
from the data area for port 1.
With an offset of 2 bytes to the addresses of the "Output Fieldbus Variable
UDINT (AC
hex
)" class, that means for WAGO-I/O- PRO or CODESYS the PLC
addresses for %QD638 ... %QD765.
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 %QD638
and the Low-Word of the address %QD639, etc.
If instance 128 is read, you obtain only the High-Word of the address %QD765.
Instance 0 (Class Attributes)
Table 322: Output Fieldbus Variable UDINT Offset (AD
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 (0x0080)
Instance 1...128 (Output variable 1 up to 128)
Table 323: Output Fieldbus Variable UDINT Offset (AD
hex
) – Instance 1...128
Attribute ID Access Name Data type Description Default
value
1 Set Fb_Out_Var UDINT Fieldbus output variable of the SPS 0
Common Services
Table 324: Output Fieldbus Variable UDINT Offset (AD
hex
) – Common service
Servicecod
e
Service available Service-Name Description
Casse Instance
0E
hex
Yes Yes Get_Attribute_Single Supplies contents of the appropriate
attribute
12.3.5.45 Input Fieldbus Variable USINT (B0
hex
)
The class enables the reading of data from a particular PLC input variable from
the data area for port 2.
The instance scope of the "Input Fieldbus Variable USINT" class covers the PLC
input variable data from 1 to 255 from the data area for port 2.
For WAGO-I/O-PRO or CODESYS, that means the PLC addresses for output
variables %IB3064...%IB3318.