Vishay G4, Technical Manual, Page: 112 / 200

Technical Manual
6-8
Assembly Object
The Assembly Object class code is 0x04.
The assembly object is used to receive and transmit data to and from the G4
instrument. This data is measurements, status, input and output status etc. Any
communication regarding this type of instrument data is done through the Assembly
object.
Note that the Assembly Object is defined as a static assembly, meaning that it cannot
be configured from the EtherNet/IP interface but only via the operators interface on the
actual instrument or via the instrument Web interface, i.e. using a browser on a PC
connected to the same Ethernet network as the instrument.
For convenience the instrument ignores any reference to any configuration instance.
It will not generate an error response to a connection attempt that includes a
configuration instance.
Supported Class Attributes:
No. Attribute name Remark
1 Revision 2
2 Max Instance 190
3 Number of Instances 5
Supported Instance Attributes:
No. Attribute name Remarks
3 Data
Supported Services:
Code Name Class Instance
0x0E Get Attribute Single Yes Yes
0x01 Set Attribute Single No Yes(Instance 100 only)
Assembly Object Instances:
No Direction of data Size (bytes) Remark
100 Consumer 16 Base data block (data to the G4)
101 Producer 32 Base data block (data from the G4)
102 Producer 192 12 configurable data blocks
103 Producer 224 Base data block + configurable
data blocks
190 Consumer 0 Heartbeat instance
Consumer instance denotes an instance that will receive data from the network while a
Producer instance will transmit data to the network.
A detailed description of the data blocks i.e. the actual content of instance 100 to 103
are described in chapter “Fieldbus and EtherNet/IP Data Definitions” found later in this
manual. In the same chapter is also a description of the set-up of the configurable data