Standard Data Organization - GE POWER LEADER GEH-6510 User Manual

t represents the type of data, if there are any
special conventions. See the following section

Standard Data Organization

Data Use
Type
Command 1. Commands a device to take
Coil action.
2. Reads the status of an
action or discrete input.
Dynamic Read frequently, such as
Value metering values which change
constantly
Fixed Read only once at power-up.
Value Info such as Product ID and
configuration options
Setpoint Read infrequently
DDE Server User's Guide
"Special Naming Conventions" for details.
R <f> <[X]nnnn> [t] [A] [lll] [-b]
A indicates that the data is an Array.
See the following section "Register
Array Format" for details.
Data is organized according to data type, numeric range, tag type, and access type.
Data Types
There are four data types typically used by the GE devices. These four data types are
the possible values for 'f' in the address. (Each data type is organized in a separate
table for each device in this manual):
1. Dynamic Value
2. Setpoint
3. Command Coil
4. Fixed Value
Each data type is assigned a range of register numbers, tag type, and access as shown
below:
Data Organization
Register Register
Range Range
(hex) (decimal)
R0X0000 – R00000 –
R0XFFFF R09999
R3X0000 – R30000 –
R3XFFFF R39999
R4X0000 – R40000 –
R4XFFFF R49999
R4X0000 – R40000 –
R4XFFFF R49999
Appendix A – Register Addressing Conventions • • • • 81
-b represents the reading of
individual bits. Not present if
reading whole registers or an
array of registers. See the
following section "Individual
Bits in Registers" for details.
lll provides the length of the array
or ASCII string in bytes, This field
is present only if the address
represents an array or an ASCII
string. Leading zeros are not
required for this field.
DDE Type of
Tag Access
Type
Discrete Read and
Write
Analog Read Only
Analog Read Only
Analog Read Only