Preface
Document No. D106-009
Page 6 of 76
Revision 1.15
Scheduled Tag
The Modbus Router transfers data between a Modbus device and a
number of Logix tags, using a preconfigured scheduled.
(Modbus Master)
No Logix or remote device configuration is required.
Modbus Router
Unscheduled
The Modbus Router transfers messages received from a Logix
Message Instruction.
(Modbus Master)
Logix (Msg)
Table 1.1. – Modes of Operation
The
Modbus
Router is configured using the Aparian Slate application. This program can be
downloaded from
www.aparian.com
free of charge. Slate offers various configuration
methods, including a controller tag browser.
Hereafter the
Modbus
Router will be referred to as the
module
.
The module can operate in both a Logix “owned” and standalone mode. With a Logix
connection the input and output assemblies will provide additional diagnostics information
which will be available in the Logix controller environment.
The Modbus Router allows the user to integrate Modbus devices into a Logix system with
minimal effort. No copying or mapping of data in the Logix controller is required as the
Modbus Router writes directly into Logix tags.
The module also provides a range of statistics and traffic analyser to help fault find any
problems.
The Modbus Router supports Modbus on two ports which can be configured from the Slate
environment; Modbus-RTU (Serial) or Modbus-TCP (Ethernet).
The Modbus Router (RS232 version) uses isolated RS232 for
Modbus serial
communication
providing better noise immunity. The RS232 or RS485 port uses a terminal block for
convenient installation.
A built-in webserver provides detailed diagnostics of system configuration and operation,
including the display of
Modbus operation and
communication statistics, without the need for
any additional software.