ProSoft Technology MVI56E-MNET/MNETXT - Manual (Page 80)

Ladder Logic MVI56E-MNET / MNETXT ♦ ControlLogix Platform
User Manual Modbus TCP/IP Interface Module
Page 80 of 181 ProSoft Technology, Inc.
April 23, 2014
3.4 Controller Tag Overview
Controller Tag Description
MNET.DATA MNET input and output data transferred between the processor
and the module
MNET.STATUS Status information
MNET.CONTROL Governs the data movement between the PLC rack and the
module
MNET.UTIL Generic tags used for internal ladder processing (DO NOT
MODIFY)
The following sections describe each of these controller tag structures in more
detail.
3.4.1 MNET.DATA
The controller tags in MNET.DATA hold user data to be transferred between the
processor and the MVI56E-MNET module. This read and write data is transferred
between the processor and the module as "pages," or blocks, of data up to 200
words long.
The data types for the MNET.DATA.ReadData and MNET.DATA.WriteData
controller tag arrays are integer arrays containing variable numbers of elements.
Controller Tag Data Type Description
ReadData INT[x] Data read from module. Array size is equal
to the size set in the configuration.
WriteData INT[x] Data to write to module. Array size is equal
to the size set in the configuration.