Western Reserve Controls 1782-JDC Uživatelský manuál Strana 6
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Hodnocené. / 5. Na základě hodnocení zákazníků
Western Reserve Controls 1782-JDM User’s Manual
PUB 24.0
4
1.1 Features
The JDM has the following features:
• Translates messages and data between DeviceNet and ModBus devices
• Operates independently of ModBus device
• Forwards the message received without interpretation
• Each JDM communicates with one or more ModBus devices
• DeviceNet Autobaud operation
• Polled I/O
• Explicit Messaging
• All ModBus registers on target device are accessible
• Upgrades to the ModBus device do not require updates to the JDM
• Software Configurable Parameters for device operation
• Address selection via DIP switches
• DIN rail mount
• Pluggable 5-pin DeviceNet connection
• Pluggable RS232/RS485 3-pin connection or RS422 5-pin connection
• Choice of isolated RS232, RS485 or RS422 serial interface
• Standard DeviceNet module and network status LED’s
• Serial port transmit and receive LED’s
• Powered from DeviceNet network
1.1 Product Family Selection
There are 3 members of the 1782-JDC family:
o 1782-JDM-1 Isolated RS-232
o 1782-JDM-2 Isolated RS-485
o 1782-JDM-4 Isolated RS-422
1.2 DeviceNet System Architecture
A DeviceNet network is a distributed I/O system that may contain many different products from several
different vendors. Products may be configured uniformly, as clusters or as distributed clusters. Up to 64
devices, including the master, may be attached to a single DeviceNet network. Any of these, except the
master, may be a JDM. A typical system will include a master, such as a PLC or industrial PC, and
multiple slave devices, including a JDM with connected ModBus devices.
- 1782-JDM 1
- DeviceNet™-ModBus Gateway 1
- User’s Manual 1
- TABLE OF CONTENTS 3
- LIST OF TABLES 4
- LIST OF FIGURES 4
- 1 Overview 5
- 1.1 Features 6
- 1.1 Product Family Selection 6
- 1.4 JDM Basic Operation 7
- 1.4.1 Polled I/O 8
- 1.6 EDS 9
- 2 Quick Start 10
- 3.1 Overview 15
- 3.2 LED Operation 16
- 3.3 Serial Port Connectors 17
- 3.4 Power Requirements 17
- 4 Software Configuration 21
- 6 General Specifications 26
- 7 ModBus Protocol 28
- 8 Troubleshooting 29
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