EtherNet/IP Driver Manual
Page 10 of 42
5.3.2 Driver Related Map Descriptor Param eters
– Unconnected Messages
Column Title
Function
Legal Values
EIP_Service
The action to be performed.
Get_Attrib, Set_Attrib
EIP_Class
Class to be polled.
0-65535, default 0 (refer to
Appendix D.2
for commonly
used classes)
EIP_Attribute
Attribute associated with the class given.
0-255, default 0 (refer to
Appendix D.2
for commonly
used attributes)
EIP_Con_Typ
The type of data transfer required. Also referred to
as the “Transport Method”.
Unconnected, Explicit
EIP_Path
*
Used to stipulate the path to the CPU in certain
PLC’s. Paths vary and are dependent on the
structure of the network.
Any space delimited numerical
value. Refer to vendor’s
device documentation.
(
Appendix A.3
)
EIP_Data_Type
This parameter should be used to force the data
type of the attribute to match the data type used
in the remote device.
Value Alias (as used in PLC)
Float REAL
Uint32 DINT
Uint16 INT
BYTE SINT
default INT
Length
Number of data elements to be mapped. If the
number of data elements exceeds the Map
Descriptor length, the list of data elements will be
truncated and an error message will be printed
once per Map Descriptor. Refer to
Appendix D
for
further information.
For any given Map Descriptor
there can be 200 Floats, 400
Integers or 800 Bytes.
Address
Instance of the class to be polled.
0-65535, default 0
