ProSoft Technology MVI56E-MCM/MCMXT - Manual (Page 159)

MVI56E-MCM ♦ ControlLogix Platform Reference
Modbus Communication Module User Manual
ProSoft Technology, Inc. Page 159 of 199
June 18, 2014
CmdControl
Name Data Type Description
TriggerCmdCntrl BOOL Trigger command control. User application will
activate this trigger
NumberOfCommands INT Number of commands per block (1 to 6)
PortNumber INT MVI56-MCM Port Number of master port (1 or
2)
CommandIndex INT[6] Stores the command indexes for command
control
CmdsAddedToQueue INT Number of commands added to queue
CmdControlBlockID INT Temporary variable to calculate control block
ID
CmdCntrlPending BOOL Auxiliary control command - prevents a second
request before acknowledgment is received
EventCmd
Name Data Type Description
EventCmdTrigger BOOL Trigger for event command. User ladder must
set this bit to initiate event command
EventCmdPending BOOL Set after the ladder has sent an event cmd to
the module and is waiting for the status to be
returned
PortNumber INT Module master port number associated to this
request (1 or 2)
SlaveAddress INT Modbus slave node address
InternalDBAddress INT Internal database address
PointCount INT Number of points for this command
SwapCode INT Swap code (0= no swap, 1=swap words,
2=swap words and bytes, 3=swap bytes)
ModbusFunctionCode INT Modbus function code
DeviceDBAddress INT Modbus register address within slave
EventCmdStatusReturned INT (0=Fail, 1=Success)
EventBlockID INT Temporary variable to calculate event block ID
SlavePollStatus
This object contains all of the Slave Polling status (when the port is used as a
Master).
Tag Name Data Type Description
Port1Slave0Read BOOL
Port1Slave128Read BOOL
Port2Slave0Read BOOL
Port2Slave128Read BOOL
P1Slaves INT[256] P1 Slave Status