Rice Lake 520 HMI Digital Weight Indicator Installation Manual - Manual (Page 8)

Introduction 2
1.0 Introduction
The 520 is a single-channel digital weight indicator housed in a panel mount enclosure. The front panel bezel can
be sealed to a NEMA 4X/IP65 rating. The front panel consists of a 5-button keypad; a large, seven-digit,
14-segment, vacuum fluorescent display; two-character dot-matrix annunciator field; and 16-character dot-matrix
prompt field. Features include:
• Drives up to 8 350 or 16 700 load cells
• Supports 4- and 6-wire load cell connections
• Three configurable digital inputs
• Four digital outputs
• Electronic data processing (EDP) port for full duplex RS-232 or half duplex RS-485 communications at up
to 19200 bps
• Printer port for full duplex RS-232 and simplex 20 mA current loop communications at up to 19200 bps
• Optional DeviceNet ™ interface for communications network with Allen-Bradley ® controllers
1
• Optional Remote I/O Interface for communication with Allen-Bradley PLC ® and SLC ™ controllers
2
• Optional Ethernet/IP interface for Allen-Bradley PLC and other Ethernet/IP master devices
• Optional Profibus ® DP interface for network communications
3
• Optional Ethernet TCP/IP interface for 10-Base T network communications
• Optional BCD interface for 5 VDC TTL
• Optional analog output module provides 0–10 VDC or 4–20 mA tracking of gross or net weight values
• Available in 115 VAC and 230 VAC versions
1.1 Operating Modes
The 520 has four modes of operation:
Normal mode
Normal mode is the weighing mode of the indicator. The indicator displays gross or net weights as required,
using the secondary display to indicate scale status and the type of weight value displayed.
Setup mode
Most of the procedures described in this manual require the indicator to be in setup mode, including
configuration and calibration.
To enter setup mode, remove the large fillister head screw from the enclosure backplate. Insert a screwdriver or
a similar tool into the access hole and press the setup switch once. The indicator display changes to show the
word
CONFIG.
Test mode
Test mode provides a number of diagnostic functions for the 520 indicator. Like setup mode, test mode is
entered using the setup switch. See Section 12.13 on page 86 for more information about entering and using
test mode.
Front Panel Setup mode
Front panel setup mode is used to change setpoint and/or checkweigh values and to set the time and date. See
Section 1.3.8 on page 4 for more information about entering front panel setup mode.
1. DeviceNet ™ is a trademark of the Open DeviceNet Vendor Association.
2. Allen-Bradley ® , PLC ® , and SLC ™ are trademarks of Allen-Bradley Company, Inc., a Rockwell International company.
3. Profibus ® is a registered trademark of Profibus International.