Allen-Bradley 1769-SM1 User Manual page 137

DPI Parameter Object
Descriptor Attributes (Continued)
Bit Name
19 Parameter Exists
20 Not Used
21 Formula Links
22 Access Level (Bit 1)
23 Access Level (Bit 2)
24 Access Level (Bit 3)
25 Writable ENUM
26 Not a Link Source
27 Enhanced Bit ENUM
28 Enhanced ENUM
29 Not Used
30 Not Used
31 Not Used
Formulas for Converting
Display Value = ((Internal Value + Offset) x Multiplier x Base) / (Divisor x 10
Internal Value = ((Display Value x Divisor x 10
Object Specific Services
Service Code Service Name
0x4B Get_Attributes_Scattered
0x4C Set_Attributes_Scattered
(1)
The instance and attribute are ignored for these services.
The table below lists the parameters for the Get_Attributes_Scattered
and Set_Attributes_Scattered object-specific service:
Name
Scattered Parameters
Parameter Number
Parameter Value LSW
Parameter Value MSW
Important: The STRUCT may repeat up to 36 times in a single
message.
(Continued)
Description
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
0 = Parameter can be a source for a link
1 = Parameter cannot be a source for a link
Reserved
Reserved
Reserved
Reserved
Reserved
Decimal Places
(1)
(1)
Data Type Description
STRUCT of
WORD Parameter to read or write
WORD Low word of Parameter value to read or write
(zero when reading)
WORD High word of Parameter value to read or write
(zero when reading)
CIP/DPI Objects
Decimal Places
) / (Multiplier x Base)) - Offset
C-11
)