GE D485 - Assembly Object (Class 04 H); Connection Object (Class 05 H)

3–8 D485 MODBUS TO DEVICENET CONVERTER – USER GUIDE
DATA EXCHANGE
ASSEMBLY OBJECT
(CLASS 04H)
The assembly object binds all mapped I/O data. This data is used for I/O connections.
Services:
Class services: Get Attribute Single
Instance services: Get Attribute Single, Set Attribute Single
If the I/O input data size is set to 0, the above instances will not be initialized.
CONNECTION OBJECT
(CLASS 05H)
Services:
Class services: Get Attribute Single
Instance services: Get Attribute Single, Set Attribute Single
The instances for this object are defined as follows:
Instance 1 = Explicit messaging connection (Predefined in DeviceNet object)
Instance 2 = Polled connection / COS / Cyclic consuming connection
Instance 3 = Bit strobe connection
Instance 4 = COS / Cyclic producing connection
Instances 10 to 14 = Explicit connection (UCMM allocated)
Table 3–8: Class attributes for assembly object 04h
Attr. Access Name Type Value Description
1 Get Revision UINT 0002h Revision 2
Table 3–9: Instance attributes for assembly object 04h, instance 64h
Attr. Access Name Type Value Description
3GetData Array of
USINT
--- Data produced by the D485 to
the master
Table 3–10: Instance attributes for assembly object 04h, instance 96h
Attr. Access Name Type Value Description
3GetData Array of
USINT
--- Data consumed by the D485 to
the master
NOTE
Table 3–11: Class attributes for connection object 05h
Attr. Access Name Type Value Description
1 Get Revision UINT 0001h Revision 1
Table 3–12: Attributes for instances 1 and 10 to 14 for connection object 05h
Attr. Access Name Type Value Description
1 Get State USINT N/A 0 = Non existent
1 = Configuring
3 = Established
4 = Timeout
5 = Deferred delete
2 Get Instance type USINT 0 Explicit messaging connection