Allen-Bradley 22-COMM-E FRN 1.xxx, Руководство пользователя

Страница: 120 / 166

C-8 EtherNet/IP Objects
Instance Attributes
Important: Setting a Register object attribute can be done only when
the Control Timeout (class attribute 100) has been set to a
non-zero value.
Register Object
(Continued)
Attribute
ID
Access Rule Name Data Type Description
1 Get Bad Flag BOOL If set to 1, then attribute 4
contains invalid, bad or otherwise
corrupt data.
0 = good
1 = bad
2 Get Direction BOOL Direction of data transfer
0 = Input (Drive to EtherNet/IP)
1 = Output (EtherNet/IP to Drive)
3 Get Size UINT Size of register data in bits
4 Conditional
(1)
(1)
The access rule of Set is optional if attribute 2, Direction = 1. If Direction = 0, the
access rule is Get.
Data ARRAY of
BITS
Data to be transferred
Service Code
Implemented for:
Service Name Class Instance
0x0E Yes Yes Get_Attribute_Single
0x10 Yes Yes Set_Attribute_Single