Rockwell-automation 855T DeviceNet Stack Light User Manual Instrukcja Użytkownika Pobierz pdf (Strona 55)

DeviceNet Information B-6

Publication 855T-UM001C-EN-P May 2005

Common Services

Class Code 004 (0x04): Assembly Object

The Assembly Objects bind attributes of multiple objects to allow data to or from each object

to be sent or received over a single connection.

Class Attributes

Instance Attributes

➊ The Assembly Data Byte consists of five bits, starting at bit 0. Each bit corresponds to a station position in

the stack. 1 = ON/ACTIVE.

➋ The Assembly Status Byte consists of five bits. Each of the lower five bits, starting at bit 0, corresponds to a

station position in the stack. 1 = Failed.

Table B.8

Service Code Class Instance Service Name

14 (0x0E) Yes Yes Get_Attribute_Single

16 (0x10) No Yes Set_Attribute_Single

75 (0x4B) No Yes Allocate_Master/Slave

76 (0x4C) No Yes Release_Master/Slave

Table B.9

Attribute Access Name Type Value

2 Get Max Class ID UINT 104 (0x68)

Table B.10 Assembly Object, Instance 100 Attributes

Attribute Access Name Type Value

3SetDataBYTE➊

Get State BYTE ➋

1 2 ... 50 51 52 53 54 55 56 57 58 59 60 ... 71 72

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Rockwell-automation 855T DeviceNet Stack Light User Manual Instrukcja Użytkownika Strona 55