Functions And Features Of The Dn611B - Toshiba DeviceNet nv Series Instruction Manual

Chapter 1 DN611B Introduction

1.1 Functions and Features of the DN611B

This section describes the features of the DeviceNet module (DN611B) for the unified controller nv series
type1 light. DN611B is an interface module for connecting DeviceNet, one of the FA device level networks, to
the unified controller nv series.
(1) DeviceNet compliant
DeviceNet has been standardized by Rockwell Automation in the United States as a device-level network for
factory automation. Currently, a non-profit organization called ODVA (Open DeviceNet Vendor Association)
plays a leading role in maintaining and expanding DeviceNet specifications and introducing compatible
products.
DN611B is an interface between the controller and slave devices that enables the nv series controller to input
/ output data as a master device on this DeviceNet with DeviceNet-compliant slave devices developed by
various manufacturers.
(2) Input / output data volume, number of connected slave devices, data speed and network length
One DeviceNet network can be connected to DN611B. The amount of data that can be input / output
between the DN611B and the connected slave device is 128 words for input and 128 words for output (1
word = 16 bits). As long as the total number of output data and input data to connected slave devices does
not exceed 128 words, data can be input / output with up to 63 slave devices. The data amount output to the
slave device and the data amount input from the slave device differ depending on the slave device. Check
the specifications of the slave device.
The definition of output data / input data handled in this document is as shown in the figure below.
Output data:
Input data:
(3) Data input / output method
The DN611B supports the "poll command / response" and "bit strobe command / response" specified by the
DeviceNet standard as a method for inputting / outputting data with slave devices.
The details of "poll command / response" and "bit strobe command / response" are described in "1.5 Basic
Functions".
Important
- DN611B cannot be used in duplicate.
- Use the DeviceNet setting tool manufactured by HMS to configure the DeviceNet device connected to DN611B.
(Anybus Configuration Manager for DeviceNet. Hereinafter, referred to as "ACM".)
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Controller DN611B
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Controller DN611B
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Slave device
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Slave device