Table of Contents
Advertisement
Terms used in
this manual
Parameter
Communication
module
RMBA-01 Modbus
Adapter module
Broadcast write
4XXXX register area
RMBA-01 User's manual
Phone: 800.894.0412 - Fax: 888.723.4773 - Web: www.clrwtr.com - Email: info@clrwtr.com
A parameter is an operating instruction for the drive.
Parameters can be read and programmed with the drive
control panel, or through the RMBA-01 module.
Communication module is a parameter name/
parameter selection name for a device (e.g. a fieldbus
adapter) through which the drive is connected to an
external serial communication network (e.g. a fieldbus).
The communication with the communication module is
activated with a drive parameter.
The RMBA-01 Adapter module is one of the optional
fieldbus adapter modules available for ACS 800 drives.
The RMBA-01 is a device through which an ACS 800
drive is connected to a Modbus serial communication
bus.
Modbus network allows the Modbus master to perform
a write to every slave station at the same time. This
write is called Broadcast. This service does not give
verification back to the master that the value has been
received by each one of the slaves properly.
Modicon PLCs have a signed integer data table area,
which is used for analogue output modules and for
storing temporary or set-point values. These registers
are in the address area starting from 40001. The last
register address available on PLCs depends on the
available memory, but is 49999 at most. The drive
simulates this area by providing a read and write
access to its parameters through this register address
area.
Chapter 1 – Introduction
1-3
Advertisement
Table of Contents
