GE GFK-2193A - Manual (Page 16)

GFK-2193A Chapter 3 Configuration 3-3
3
Input Data Area Tab
The input data area describes data received over the network by the Slave module from
the PROFIBUS Master. These inputs are mapped, using the Input Data Area tab, into
specific memory locations in the PLC where the Slave module resides.
PROFIBUS Slave Module’s Input Data Area Parameters
Area A read-only identifier for the row. Valid range: 1 to 32.
Type Data type of area being defined. Valid types are Digital In, Analog In, and Empty. The default value is
Empty.
Size Describes the size of the data area on the network. Set to 0 and read-only if Type is set to Empty. Valid
ranges:
If Type is set to Analog In (Word): 1—122
If Type is set to Digital In (Byte): 1—244
Notes: The total number of input bytes for all entries cannot exceed 244.
A value of 0 sets Type to Empty.
Units This read-only field gives the units for the Type specified.
If Type is set to Empty or Digital In: Byte
If Type is set to Analog In: Word
Ref
Address Location in PLC memory where the received data is mapped. This field is read-only if Size is set to 0. This
is a consumed range and must be a non-overlapping range in %AI, %I, %Q, %G, %AQ, %R, %T or %M. If
Type is set to Digital In and the number of bytes (Size) is odd, an address in discrete memory must be
used: %I, %Q, %G, %M, or %T.
Default:
For Digital In, next available address in %I
For Analog In, next available address in %AI
Length The length of the reference mapped to the area. Allowable ranges:
For discrete memories (in bits), 0, 8, 16 ... X
For register memories (in words), 0, 1, 2 ... X
where X is the required length to hold the entire data area. The default value is the space required to map
bytes specified by the entries in Type and Size.
Note: If an input data area is defined (Type and Size are specified) but Length is set to 0, data received by the Slave
is ignored.