WAGO-I/O-SYSTEM 750
Fieldbus Communication 159
750-806 Fieldbus Controller DeviceNet
TM
Manual
Version 2.0.0
Poll Connection:
• 12-byte input process image (produced)
• 10-byte output process image (consumed)
BK_FBINP_VAR_CNT = 4; BK_FBOUT_VAR_CNT = 3
Poll Connection:
•
15 bytes (produced)
(12-byte input process image + 3-byte PFC output variables)
•
14 bytes (consumed)
(10-byte output process image + 4-byte PFC input variables)
Services
Table 97: Service
Service
Code
Service Name
Description
0x0E
Get_Attribute_Single
Returns the content of a specific attribute
0x10
Set_Attribute_Single
Modifies the content of a specific attribute
11.1.5.2.1.8 Discrete Input Point Object (0x65)
Instance 0
Table 98: Instance 0
Attributes
ID
Utilization
in Device
Access
Rights
Name
Data Type Value Description
1
required
get
Revision UINT
0x01
Revision number of the class
definition for the “Identity
Object”
2
optional
get
Max
instance
UINT
0x256 Maximum number of
instances of an object
generated at the time in this
class level of the device
Description of Instances
Table 99: Description of Instances
Instance ID Description
1
Reference to the first digital input point
2
Reference to the next digital input point
…
255
Reference to the last possible digital input point
