ProSoft Technology 5301-MBP-ASCII - Manual (Page 28)

MBP Protocol Configuration MBP ♦ ProLinx Gateway
Protocol Manual Modbus Plus
Page 28 of 52 ProSoft Technology, Inc.
May 12, 2011
3.3.6 Device Index
The Master Driver uses this value to reference the Device Definition File. The
Master Driver obtains the Route Path data from the [Modbus Plus Device
Definition] section. A value of 0 corresponds to the first device defined in the
Device Definition Table.
3.3.7 Function Code
3, 16
This parameter specifies the Modbus function to be executed by the command. A
value of 3 = Read Command (Type 2). A value of 16 = Write Command (Type 1).
3.3.8 Device Address
This parameter specifies the starting Modbus register or digital point address to
be considered by the command in the Modbus slave device. Refer to the
documentation of each Modbus slave device on the network for their register
address assignments.