User`s manual

Western Reserve Controls, Inc. 1782-JDC User’s Manual
5
1.1 Features
The 1782-JDC has the following features:
• Translates messages and data between DeviceNet and a serial peripheral device
• ODVA Group 2 Only Slave
• Defined as a DeviceNet Communications Device Profile 12 (C
hex
)
• Autobaud operation
• Polled I/O and Explicit Messaging
• Software Configurable Parameters for serial port operation
• Special mode performs byte swapping of serial message for AB PLC compatibility
• Address selection via DIP switches
• DIN rail mount
• Pluggable 5-pin DeviceNet connection
• Pluggable RS-485 2-pin connection / RS-232 3-pin connection / RS-422 5-pin connection
• 2 standard DeviceNet module and network status LED’s
• 2 serial transmit and receive LED’s
• Powered from DeviceNet 11-25 Vdc network power
• ASCII string length up to 124 bytes
• Serial port baud rate up to 38.4k baud
• Network electrical isolation
1.2 Product Family Selection
There are 3 members of the 1782-JDC family:
o 1782-JDC-1 Isolated RS-232
o 1782-JDC-2 Isolated RS-485
o 1782-JDC-4 Isolated RS-422/485
1.3 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 JDC. A typical system will
include a master, such as a PLC or industrial PC, and multiple slave devices, including a
1782-JDC with connected peripheral devices.