ProSoft Technology MVI71-MCM - Manual (Page 98)

MVI71-MCM ♦ PLC Platform Reference
Modbus Communication Module
Page 98 of 111 ProSoft Technology, Inc.
December 28, 2007
5.9.9 Should I use the sample ladder logic?
Yes, the sample ladder should always be used as the source for your application.
You may copy and paste the ladder logic to your current application.
5.9.10 Is it possible to control the Master Modbus Commands from
ladder logic?
Yes, the ladder logic can create and send Modbus commands (event command)
or enable commands that are currently disabled in the Master Command List
(command control).
Refer to the User Manual for more information.
5.9.11 How is the MVI71-MCM database divided into Discrete Output,
Discrete Input, Input Registers, and Holding Registers?
The MVI71-MCM uses the same database (0 to 4999) for all of these data types.
The only difference is how you address each point. For Discrete Output or
Discrete Input, use a bit addressing (1 bit) and for Input Registers or Holding
Registers, use a word addressing (16 bits).