Rice Lake 880 Performance Series Panel Mount Indicator/Controller - DeviceNet Interface Option Installation and Programming Manual - Manual (Page 5)

Introduction 1
About This Manual
This manual provides information needed to install and use the Rice Lake
Weighing Systems DeviceNet™ Interface. The Installation allows the
indicator to communicate with a master controller on a DeviceNet network.
1
See the indicator installation manual for additional installation information
and detailed descriptions of indicator functions.
The Installation is installed inside the indicator enclosure. Installation in
NEMA 4X stainless steel enclosures permits use in washdown environments.
Some procedures described in this manual require work inside the
indicator enclosure. These procedures are to be performed by
qualified service personnel only.
Authorized distributors and their employees can view or download
this manual from the Rice Lake Weighing Systems distributor site at
www.rlws.com .
1.0 Introduction
The Installation returns weight and status information from an indicator to a
master controller and provides limited control of indicator functions to the
programmer. Indicator configuration and calibration cannot be performed
through the DeviceNet Interface.
The Installation functions as a Communications Adapter Device (ODVA
profile 12) on a DeviceNet network. It acts as a group-two-only server on the
network. At this time only one polled I/O connection is supported, though
DeviceNet also supports explicit, bit-strobed, and change-of-state/cyclic
connections. These connections may be included at a later date.
The master controller sends commands to the indicator through the DeviceNet
Interface by writing the commands in the output command format. The
Installation returns the weight and status data in the input command format.
These actions are referred to as polled I/O. See Section 3.0 for descriptions of
the polled I/O commands.
1. DeviceNet™ is a trademark of the Open DeviceNet Vendor Association.
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