GE PACSystems RX7i Cpu Programmer's Reference Manual page 48

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I/O Variable Format
To map an I/O variable, use the format %vdr.s.[z.]g.t:
v = I (input) or Q (output)
d = data type: X (discrete) or W (analog).
r = rack number
s = slot number
[z] = sub-slot number. This element and the period that follows it appear only if there is a sub-slot,
for example, the SBA number of a Genius device. For an Ethernet daughterboard, set this value to 0.
g = segment number or number of the reference address node. Set to 0 for the first reference
address node on the Terminals tab, 1 for the second reference node, and so on.
t = terminal number. One-based, that is, the numbering begins at 1.
Supported I/O Variable Types
Data Type Mnemonic
X
W
I/O Variable Examples
The I/O variable, Sample_IO_Variable is mapped to a non-discrete (W) output point (Q) on the
module located in rack 0, slot 8. The variable is mapped to the first point in the first group of non-
discrete output reference addresses.
The I/O variable, IO_VAR_EXAMPLE, is mapped to a discrete (X) input point (I) on the module located
in rack 0, slot 5. The point is located in the module's third group of discrete input points and is point 2
in that group.
GFK-2950C
Supported Data
Types
BOOL variable
BOOL array
BYTE variable
BYTE array
DINT variable
DINT array
DWORD variable
DWORD array
INT variable
INT array
LREAL variable
LREAL array
REAL variable
REAL array
UINT variable
UINT array
WORD variable
WORD array
February 2018
Number of Consecutive Terminals
Required
1
Number of elements in array.
8
8n, where n is the number of array elements.
2
Number of elements in array times 2
2
Number of elements in array times 2
1
Number of elements in array
4
Number of elements in array times 4
2
Number of elements in array times 2
1
Number of elements in array
1
Number of elements in array
Chapter 3. Program Data
33

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