Rockwell-automation 198 Series C Modular DeviceNet Starter Auxiliary U Manual de usuario Pagina 141

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DeviceNet Information A-7
Publication 198-UM002A-EN-P December 2001
The following services are implemented for the DeviceNet Object.
Assembly Object
CLASS CODE 0x0004
The following class attributes are supported for the Assembly Object:
I/O Modules and “Byte-wise” I/O Assemblies
When “Byte-Wise” I/O Assemblies are chosen, each I/O Module on an MDSA back-plane
generates one byte of data in the assemblies. The “byte-wise position” within the assembly is
dependent upon the I/O module position on the back-plane. The I/O module that is
physically closest to the DeviceNet Module appears at the lowest “byte-wise position” within
each assembly.
The following table lists the “Output” or “Consumed” byte-wise data for each I/O Module
type
Table A.8
Service Code Implemented for: Service Name
Class Instance
0x0E Yes Yes Get_Attribute_Single
0x10 No Yes Set_Attribute_Single
0x4B No Yes Allocate_Master/ Slave _Connection_Set
0x4C No Yes Release_Master/ Slave _Connection_Set
Table A.9
Attribute ID Access Rule Name Data Type Value
2GetMax InstanceUINT190
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