beautypg.com

ProSoft Technology MVI56E-MNETC User Manual

Page 55

background image

MVI56E-MNETC ♦ ControlLogix Platform

Configuring the MVI56E-MNETC Module

Modbus TCP/IP Client Enhanced Communication Module

User Manual

ProSoft Technology, Inc.

Page 55 of 183

February 3, 2013

Internal Address

0 to 65535 (for bit-level addressing)

or

0 to 9999 (for word-level addressing)

This field specifies the database address in the module's internal database to use
as the destination for data brought in by a read command or as the source for
data to be sent out by a write command. The database address is interpreted as
a bit address or a 16-bit word (register) address, depending on the Modbus
Function Code used in the command.

For Modbus functions 1, 2, 5, and 15, this parameter is interpreted as a bit-
level address.

For Modbus functions 3, 4, 6, and 16, this parameter is interpreted as a word-
level or register-level address.

Poll Interval

0 to 65535

This parameter specifies the minimum interval between issuances of a command
during continuous command execution (Enable code of 1). The parameter is
entered in tenths of a second. Therefore, if a value of 100 is entered for a
command, the command executes no more frequently than every 10 seconds.

Reg Count

Regs: 1 to 125

Coils: 1 to 800

This parameter specifies the number of 16-bit registers or binary bits to be
transferred by the command.

Functions 5 and 6 ignore this field as they apply only to a single data point.

For functions 1, 2, and 15, this parameter sets the number of bits (inputs or
coils) to be transferred by the command.

For functions 3, 4, and 16, this parameter sets the number of registers to be
transferred by the command.