4 - dx advanced, mw100 ethernet ip data formats, 0 data type and specific plc usage explanation – Yokogawa Standalone MW100 User Manual
Page 16
4 -DX Advanced / MW100 EtherNet IP Data Format
4.0
EtherNet IP communications are available for current as well as some legacy Rockwell PLC’s. Communications
are supported for the PLC 2, PLC 5, SLC500, Micro Logix, Compact Logix, and Control Logix platforms.
The PLC 2, PLC5, SLC 500, and Micro Logix series support Explicit Messaging functions. The Control Logix and
Compact Logix platforms support both Implicit (I/O) and Explicit Message Functions.
Explicit Messages are created using the ―MSG‖ command in all of the above PLC’s. Implicit (I/O) commands are
created thru I/O mapping on the Control Logix and Compact Logix platforms.
When using
Explicit Messaging, data type is very important. Various data types (INT, DINT (INT32), and Float
(Real), are supported. When using Implicit Messaging, only one data type can be selected for both Read and
Write instances. Refer to the following tables:
4.1 DX Advanced Data Table Map for Explicit Messaging
13