Rockwell-automation 1799-DASCII DeviceNet Serial Interface Manuel d'utilisateur télécharger pdf (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.

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Rockwell-automation 1799-DASCII DeviceNet Serial Interface Manuel d'utilisateur Page 4