Rockwell Automation 1799-DASCII DeviceNet Serial Interface - Manual (Page 4)

4 DeviceNet Serial Interface Module
Publication 1799-IN012B-EN-P - July 2008
About the Module
The 1799-DASCII module provides DeviceNet system interoperability to one RS-232
or multiple RS-485 devices that do not have DeviceNet network capability. The
DeviceNet port (J1) provides power to the module and DeviceNet network
communication. The serial communication port (J2) is isolated from the DeviceNet
network and the module logic power.
The 1799-DASCII module supports modes of data transfer of the serial buffer that
include the following:
•
Polled I/O
•
Change-of-State I/O
•
Cyclic I/O
•
Explicit Message
ATTENTION
To comply with UL restrictions, the DeviceNet network must be powered from a source
compliant with a Class 2 or UL Listed/recognized power supply with isolated outputs
limited to 200 volt-amperes in each ungrounded output line. This equipment and its
power source must be mounted in a suitable enclosure with proper spacings maintained.
44322
J2
J1