ProSoft Technology MVI56E-MNET/MNETXT - Manual (Page 122)

Reference MVI56E-MNET / MNETXT ♦ ControlLogix Platform
User Manual Modbus TCP/IP Interface Module
Page 122 of 181 ProSoft Technology, Inc.
April 23, 2014
Controller Tags
The elements of the MNET.UTIL.EventCmd controller tag array contain all the
values needed to build one Modbus TCP/IP command, have it sent to the
module, and control the processing of the returned response block.
Controller Tag Description
EventCmdTrigger Set this tag to 1 to trigger the execution of the Event Command.
EventCmdPending Temporary variable used to prevent a new Event Command block
from being sent to the module until the previously sent Event
Command block has been completely processed and a response
block has been returned.
IPAddress Enter the four octet IP address numbers of the target Modbus server
into this array tag.
ServicePort Enter 502 for a MBAP message or 2000 for a MNET message.
SlaveAddress Enter the Modbus Node Address. Enter 0, if not needed.
InternalDBAddress Enter the database address for the Client.
PointCount Enter the number of words or bits to be transferred by the Client.
SwapCode Enter the swap type for the data. This function is only valid for function
codes 3 and 4.
ModbusFunctionCode Enter the Modbus function code for the command.
DeviceDBAddress Enter the database address for the server.
EventCmdStatusReturned Temporary variable that provides status indication of whether or not
the Event Command was successfully added to the command priority
queue.
EventBlockID Temporary variable that provides the identification code number of the
Block ID just executed.