Rockwell Automation 1203-CN1 ControlNet Communications Module 1203-CN1 - Manual (Page 101)

Publication 1203-5.13 – February, 2002
ControlNet Objects: Class Code 0x0F — Parameter Object D-15
Bit definitions for Instance Attribute 4
16 Get Full Scaling Offset UINT Offset for scaling formula.
17
Get Full Multiplier Link UINT Parameter object instance number of
multiplier source.
18
Get Full Divisor Link UINT Parameter object instance number of
base source.
19
Get Full Base Link UINT Parameter object instance number of
offset source.
20
Get Full Offset Link UINT Parameter object instance number of
offset source.
21
Get Full Decimal Precision USINT Specifies number of decimal places to
use when displaying the scaled
engineering value. Also used to
determine actual increment value so
that incrementing a value causes a
change in scaled engineering value to
this precision.
➀
The access rule is defined in bit 4 of instance attribute 4, the Descriptor. If bit 4 is 0 the access rule is Set and the Parameter
Value can be read and written. If bit 4 is 1, the access rule is Get and the Parameter Value can only be read.
➁
Data type specified in instance attributes 4 (Descriptor), 5 (Data Type) and 6 (Data Size).
Attribute ID Access Rule Stub/Full Name Data Type Description
Bit Definition Value
0 Supports settable path 0 = Link path can not be set.
1 = Link path can be set.
1 Supports enumerated strings 0 = Enumerated strings are not supported.
1 = Enumerated strings are supported and may be read with the
Get_Enum_String service.
2 Supports scaling 0 = Scaling not supported.
1 = Scaling is supported. The scaling attributes are implemented and
the value presented is in engineering units.
3 Supports scaling links 0 = Scaling links not supported.
1 = The values for the scaling attributes may be retrieved from other
parameter object instances.
4 Read only parameter 0 = Parameter value attribute can be written (set) and read (get).
Access rule is set.
1 = Parameter value attribute can only be read. Access rule is get.
5 Monitor parameter 0 = Parameter value attribute is not updated in real time by the device.
1 = Parameter value attribute is updated in real time by the device.
6 Supports extended precision
scaling 0 = Extended precision scaling is not supported.
1 = Extended precision scaling should be implemented and the value
presented to the user in engineering units.
7 Support non-consecutive
enumerated strings 0 = Non-consecutive enumerated strings are not supported.
1 = Non-consecutive enumerated strings are supported.
8 Allow both enumeration and
individual values 0 = Both enumeration and individual values are not supported.
1 = Both enumeration and individual values are supported.
9 – 15 Not Defined These bits have yet to be defined. They should be set to 0.