Rice Lake 320IS Plus User manual

85353
320IS Plus
Intrinsically Safe Digital Weight Indicator
Version 2.0
Installation Manual

© 2006 Rice Lake Weighing Systems. All rights reserved. Printed in the United States of America.
Specifications subject to change without notice.
Version 2.0, August 2006
Contents
About This Manual ................................................................................................................................... 1
1.0 Introduction.................................................................................................................................. 1
1.1 Factory Mutual Approval. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
1.2 Operating Modes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
1.3 Front Panel Keypad. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
1.4 LED Annunciators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.5 Indicator Operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.5.1 Toggle Gross/Net Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.5.2 Toggle Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.5.3 Zero Scale . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.5.4 Acquire Tare . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.5.5 Remove Stored Tare Value . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.5.6 Acquire Parts Sample . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.5.7 Display Part Weight. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1.5.8 Display or Change Time/Date . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1.5.9 Print Ticket . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1.5.10 Display or Change Setpoint Value . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1.5.11 Turn Setpoint On or Off. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1.5.12 Display or Clear Accumulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.0 Installation ................................................................................................................................... 7
2.1 Unpacking and Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.2 Enclosure Disassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.3 Hazardous Area Installation of the 320IS Plus. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.3.1 Power Supply to Indicator. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.3.2 AC Power Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.3.3 Battery Option . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.4 Cable Connections and Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.4.1 Braided Power Cable Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.4.2 Foil Power Cable Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.4.3 Braided Load Cell Cable Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.4.4 Foil Load Cell Cable Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.4.5 Load Cells. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2.5 Fiber Optics Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
2.5.1 Assembling Fiber Optics Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
2.6 Enclosure Reassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
3.0 Configuration ............................................................................................................................. 13
3.1 Configuration Methods . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
3.1.1 Revolution III Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
3.1.2 EDP Command Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
3.1.3 Front Panel Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
3.2 Menu Structures and Parameter Descriptions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
3.2.1 Configuration Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
3.2.2 Format Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
3.2.3 Calibration Menu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
3.2.4 Serial Menu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

ii 320IS Plus Plus Installation Manual
3.2.5 Program Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
3.2.6 Print Format Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
3.2.7 Setpoint Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
3.2.8 Analog Output Menu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
3.2.9 Version Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
4.0 Calibration ................................................................................................................................. 33
4.1 Front Panel Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
4.2 EDP Command Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
4.3 Revolution™III Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
5.0 EDP Commands.......................................................................................................................... 35
5.1 The EDP Command Set . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
5.1.1 Key Press Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
5.1.2 Reporting Commands. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
5.1.3 The RESETCONFIGURATION Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
5.1.4 Parameter Setting Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
5.1.5 Normal Mode Commands. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
5.1.6 Batching Control Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
5.2 Saving and Transferring Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
5.2.1 Saving Indicator Data to a Personal Computer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
5.2.2 Downloading Configuration Data from PC to Indicator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
6.0 Print Formatting ......................................................................................................................... 43
6.1 Print Formatting Commands. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
6.2 Customizing Print Formats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
6.2.1 Using the EDP Port. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
6.2.2 Using the Front Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
6.2.3 Using Revolution™ III . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
7.0 Setpoints .................................................................................................................................... 46
7.1 Batch and Continuous Setpoints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
7.2 Batching Examples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
7.2.1 Example 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
7.2.2 Example 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
8.0 Appendix A................................................................................................................................. 51
8.1 Error Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
8.1.1 Displayed Error Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
8.1.2 Using the XE EDP Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
8.2 Status Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
8.2.1 Using the P EDP Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
8.2.2 Using the ZZ EDP Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
8.3 Continuous Output (Stream) Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
8.4 ASCII Character Chart. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
8.5 Conversion Factors for Secondary Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
8.6 Digital Filtering. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
8.6.1 DFSENS and DFTHRH Parameters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
8.6.2 Setting the Digital Filter Parameters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
8.7 Analog Output Calibration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
8.8 Test Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
9.0 Appendix B................................................................................................................................. 61
9.1 Unpacking and Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
9.2 Enclosure Disassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
9.3 Installation of the I/O Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
9.3.1 AC Wiring/Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
9.3.2 EDP and Printer Ports. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
9.3.3 RS-232 Communications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
9.3.4 RS-485 Communications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62

iii
9.3.5 RS-422 Communications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
9.3.6 20mA Current Loop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
9.4 Fiber Optics Assembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
9.5 Analog Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
9.6 Digital Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
9.7 Relay Contact Outputs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
9.8 Fuse Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
9.9 I/O Module Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
9.10 320IS Plus Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
320IS Plus Limited Warranty ................................................................................................................. 69

Introduction 1
About This Manual
This manual is intended for use by service technicians
responsible for installing and servicing 320IS Plus
digital weight indicators. This manual applies to
indicators using Version 2.0 of the 320IS Plus
software.
Configuration and calibration of the indicator can be
accomplished using the indicator front panel keys, the
EDP command set, or the 320IS Plus configuration
utility. See Section 3.1 on page 13 for information
about configuration methods.
Some procedures described in this
manual require work inside the
indicator enclosure. These procedures
are to be performed by qualified
service personnel only.
Improper specification, installation, or service of this
equipment could result in personal injury or property
damage.
The 320IS Plus is a Factory Mutual-Entity approved
component. This approval is valid only if the installation
conforms to the guidelines described in this manual and
FM-approved control drawing (PN 72717). If
modifications are made to the installation procedure, or
the instrumentation is changed in any way, Factory
Mutual approval is void and the customer becomes fully
responsible for such modifications.
Authorized distributors and their employees
can view or download this manual from the
Rice Lake Weighing Systems distributor
site at www.ricelake.com.
1.0 Introduction
The 320IS Plus is a single-channel digital weight
indicator designed and approved to operate as an
intrinsically safe system in a wide variety of scale and
weighing applications. The indicator is housed in a
NEMA 4X/IP66-rated stainless steel sealed case. The
standard unit is equipped with a tilt stand base for
tabletop or wall mounting applications. The indicator
front panel consists of a large (0.8 in, 20 mm,
16-segment), six-digit LED display, 24-button keypad
and eight LED annunciators. Features include:
• Drives up to four 350Ω or eight 700Ωload
cells
• Supports four- and six-wire load cell
connections (six-wire remote sense
recommended)
• Full-duplex fiber optic interface to attach an
external I/O board located in the safe area
The 320IS Plus is NTEP-certified and pending
Measurement Canada approval for Classes I, II and III
at 10,000 divisions. See See Section 9.10 on page 68
for detailed specifications.
Available with optional I/O Module (PN 72721):
• Four configurable digital inputs
• Four digitally-controlled single pole single
throw-normally open non-latching relay
contact outputs
• Electronic data processing (EDP) port
communications at up to 38400 bps for full
duplex RS-232/RS-422/RS-485 and Current
loop
• Printer port communications at up to 38400
bps for full duplex RS-232/RS-422/RS-485
and Current loop
• Two 16–bit analog output channels provide
±10V or ±5V, 0-5V or 0-10V, and 4-20 mA
tracking of gross or net weight values
1.1 Factory Mutual Approval
The 320IS Plus is Factory Mutual (FM) Entity
approved for:
• Classes I, II, and III
• Divisions 1 and 2
• Groups A, B, C, D, E, F and G
• T-rating T4
Only devices that have FM Entity Approval with
proper entity parameters may be used unless
specifically listed in this manual or control drawing
PN 72717 as part of the Rice Lake Factory Mutual
systems approval. Failure to comply with this voids
the FM approval.
The classification of hazardous materials are different
in the US and European standards. Because of this, the
safety class of the 320IS Plus is declared in the
following regulations:
• US standards: Class I, II, III, DIV1, Groups
A-G
Substitution of components may impair
intrinsic safety.
To prevent ignition of flammable or
combustible atmospheres, disconnect
power before servicing.
Warning
Warning

2320IS Plus Installation Manual
1.2 Operating Modes
The 320IS Plus has three modes of operation.
Normal (Primary) Mode
Normal mode is the “default” mode of the indicator.
The indicator displays gross or net weights as
indicated by LED annunciators (see Figure 1-1) 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
non-metal 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 320IS Plus indicator. Like setup mode, test
mode is entered using the setup switch (Section 8.8 on
page 59) .
1.3 Front Panel Keypad
Figure 1-1 shows the 320IS Plus LED annunciators, keypad, and normal mode key functions. Table 1-1 on page 3
details the function of each key in different display modes.
The symbols shown above the keys (representing up, down, enter, left, right) describe the key functions assigned
in setup mode. In setup mode, the keys are used to navigate through menus, select digits within numeric values,
and increment/decrement values. See Section 3.1.3 on page 14 for information about using the front panel keys
in setup mode.
Figure 1-1. 320IS Plus Front Panel

Introduction 3
Display Mode
Normal Setup Tes t Count
Key Functions
Turn the indicator on or
off
Turn the indicator on or
off
Turn the indicator on or
off
Turn the indicator on or
off
Batch start N/A N/A N/A
Batch stop N/A N/A N/A
Return gross weight
display to zero
• Move up (vertically)
• Increment value
• Exit (top level only)
Exit N/A
Toggle between gross,
net and piece count
mode
• Move down (vertically)
• Decrement value
N/A Toggle between gross,
net and piece count
mode
Press to enter an auto
tare or keyed tare
Enter Enter Perform a piece count
Toggle between primary
and secodary units
• Move left (horizontally)
• Previous
Move left (horizontally) Select a sample size
Print using GFMT Move right (horizontally) Print Print using CFMT
• Turn on/off a setpoint
• View a setpoint
• Edit a setpoint
N/A N/A N/A
Display the current
accumulator value
N/A N/A N/A
Time and date entry N/A N/A N/A
Display the tare value N/A N/A Display the average piece
weight
Table 1-1. Indicator Display Key Functions

4320IS Plus Installation Manual
1.4 LED Annunciators
The 320IS Plus display uses a set of eight LED annunciators to provide additional information about the value
being displayed (see Figure 1-1 on page 2):
•TheGross and Net annunciators are lit to show whether the dispalyed weight is a gross or net weight.
• Center of zero ( ): Gross weight is ±0.25 graduations of zero. This annunciator lights when the scale is
zeroed.
• Standstill ( ): Scale is at standstill or within the specified motion band. Some operations, including
tare functions and printing, can only be done when the standstill symbol is shown.
• The Tare Aquired ( )lights to show that a tare value has been entered.
•TheCount annunciator is lit to show that the indicator is in piece count mode.
•lb and kg annunciators indicate the units associated with the displayed value: lb=pounds, kg=kilograms.
Two units of measurement can be chosen to toggle between.
The displayed units can also be set to ounces (oz), short tons (tn), metric tons (t), grams (g), or they can be
disabled. A user-defined unit can also be set as secondary unit by declaring a conversion factor in the setup
menu. The lb and kg LED’s function as primary and secondary units annunciators for some combinations of
primary and secondary units. If neither primary nor secondary units are lb, kg, oz, or g, the lb annunciator is
lit for primary units, kg for secondary units.
Table 1-2 shows which annunciators are used for all combinations of configured primary and secondary units.
For example:
• If the primary unit is pounds (lb) and the secondary unit is kilograms (kg), the lb LED is lit for primary
units, kg for secondary units.
• If the primary unit is pounds (lb) and the secondary unit is short tons (tn), the lb LED is lit for primary units,
kg for secondary units. There is no LED for short tons, so the kg LED is used as the secondary units
annunciator.
• If the primary unit is short tons (tn) and the secondary unit is pounds (lb), the lb LED is lit for primary units
(tn), and kg is lit for secondary units (lb). Because there is no LED for short tons, the lb and kg LEDs are
used as primary and secondary units annunciators.
Clear the displayed value Clear the displayed value N/A N/A
Enter a decimal point Enter a decimal point N/A N/A
Enter a numeric
parameter value
Enter a numeric
parameter value
N/A Enter a sample size
Table 1-1. Indicator Display Key Functions

Introduction 5
See Section 3.2.2 on page 18 for more information about configuring primary and secondary display units.
1.5 Indicator Operations
Basic 320IS Plus operations are summarized below.
1.5.1 Toggle Gross/Net Mode
Press the GROSS/NET key to switch the display mode from gross to net, or from net to gross. If a tare value has
been entered or acquired, the net value is the gross weight minus the tare. The Tare() annunciator shows when
a tare value is currently stored in memory. Gross mode is shown by the Gross annunciator; net mode is shown by
the Net annunciator.
1.5.2 Toggle Units
Press the UNITS key to switch between primary and
secondary units. The appropriate units LED to the
right of the display is lit.
1.5.3 Zero Scale
1. In gross mode, remove all weight from the
scale and wait for the standstill annunciator
().
2. Press the ZERO key. The center of zero
() annunciator lights to indicate the
scale is zeroed.
1.5.4 Acquire Tare
1. Place container on scale and wait for the
standstill annunciator ( ).
2. Press the TARE key to acquire the tare weight
of the container. The indicator switches to net
mode.
3. To display the current tare value, press the
DISPLAY TARE key.
1.5.5 Remove Stored Tare Value
1. Remove all weight from the scale and wait for
the standstill annunciator ( ).
2. Press the TARE key. The indicator switches to
gross mode, indicating the tare value has been
removed.
1.5.6 Acquire Parts Sample
1. Place empty parts container on scale. Wait for
the standstill annunciator ( ), then press
TARE to acquire the tare weight of the
container.
2. Press MODE (GROSS/NET) key to enter piece
count mode.
NOTE: Press the CLEAR key to exit.
3. Press the SAMPLE (UNITS) key to enter sample
acquisition mode.
The indicator display shows the message Addnnn,
where nnn is the sample quantity to be placed on the
scale. You can do one of the following:
•Add the number of parts shown.
•Choose a different sample size. Press the
SAMPLE key to scroll through the
selectable sample quantities (5, 10, 20,
50, 100) or use the numeric keypad to
specify a custom sample size.
•Specify a known piece weight. Press the
SAMPLE key to scroll through the
selectable sample quantities until the PC
WGT prompt is shown. Use the numeric
keypad to enter the piece weight.
Primary Unit
Secondary Unit
lb kg oz tn t g none
lb lb / lb lb / kg lb / kg lb / kg lb / kg lb / kg lb / kg
kg kg / lb kg / kg kg / lb kg / lb kg / lb kg / lb kg / lb
oz kg / lb lb / kg lb / kg lb / kg lb / kg lb / kg lb / kg
tn kg / lb lb / kg lb / kg lb / kg lb / kg lb / kg lb / kg
tkg / lb lb / kg lb / kg lb / kg lb / kg lb / kg lb / kg
gkg / lb lb / kg lb / kg lb / kg lb / kg lb / kg lb / kg
none kg / lb lb / kg lb / kg lb / kg lb / kg lb / kg lb / kg
Table 1-2. Unit Annunciators, Primary/Secondary LEDs Used For All Configurations

6320IS Plus Installation Manual
4. Once the sample quantity is on the scale, press ENTER to calibrate the indicator for counting the new
parts. If a sample size was specified, the indicator display shows the message –CNT– as it acquires the
sample weight, then switches to count display mode and shows the part quantity. If a known piece weight
was specified, the display switches to count display mode immediately.
1.5.7 Display Part Weight
To view gross and net weight parts, press MODE to switch from count display mode to normal weighing mode. To
view the current piece weight while in count mode, press DISPLAY TARE key.
1.5.8 Display or Change Time/Date
NOTE: Requires optional I/O Module (PN 72721).
To display the date, press the asterisk (*) key once; press asterisk (*) a second time to display the time.
To set the date, press the asterisk (*) key once. Use the numeric keypad to enter the date, then press the ENTER key.
Use the numeric keypad to enter the date in the same format configured for the indicator: MMDDYY, DDMMYY,
or YYMMDD.
To set the time, press the asterisk (*) key twice. Use the numeric keypad to enter the time in 24-hour format, then
press the ENTER key.
1.5.9 Print Ticket
NOTE: Requires optional I/O Module (PN 72721).
1. Wait for the standstill annunciator ( ).
2. Press the PRINT key to send data to the serial port.
1.5.10 Display or Change Setpoint Value
To display a setpoint value, press the SETPOINT key. To change the setpoint value, display the current value, then
use the numeric keypad to enter the new value and press the ENTER key.
1.5.11 Turn Setpoint On or Off
NOTE: Requires optional I/O Module (PN 72721).
To turn a setpoint off at the front panel. With the correct setpoint displayed, press CLEAR to turn the setpoint off.
To re-enable a setpoint that has been turned off at the front panel, press the SETPOINT key, then press ENTER to
turn the setpoint back on.
1.5.12 Display or Clear Accumulator
If the accumulator function is enabled, the current net weight is added to the accumulator each time the indicator
performs a print operation.
• To display the current accumulator value, press the ACCUM key.
• To clear the accumulator, press ACCUM to show the current value, then press the CLEAR key twice to
reset the accumulator.

Installation 7
2.0 Installation
This section describes procedures for connecting load
cells, power supply, fiber optics, and ferrite bead
installation in the 320IS Plus indicator.
• Use a wrist strap to ground yourself and protect
components from electrostatic discharge (ESD)
when working inside the indicator enclosure.
• It is mandatory to return the 320IS Plus to Rice
Lake Weighing Systems for circuit board level
service. Component level repair is not permitted on
Factory Mutual Approved equipment by anyone
other than the manufacturer.
2.1 Unpacking and Assembly
Immediately after unpacking, visually inspect the
320IS Plus to ensure all components are included and
undamaged. The shipping carton should contain the
indicator with attached tilt stand, this manual, and a
parts kit. If any parts are missing or were damaged in
shipment, notify Rice Lake Weighing Systems and the
shipper immediately.
The parts kit contains the items listed below:
• Capacity, identification, and annunciator
labels. Annunciator labels (PN 53374)
provide replacement overlay decals for
labeling primary and secondary units LEDs.
• Six-position screw terminal (PN 70599) for
connector CN3 (see Figure 2-8 on page 12).
• Two 8-32NC x 7/16 fillister head screws (PN
30623). These screws occupy the holes below
and on either side of the setup screw on the
indicator backplate (see Figure 2-7 on page
11).
• Four 8-32NC x 3/8 machine screws (PN
14862) for the indicator backplate.
• Six neoprene washers (PN 45042) for
backplate screws included in the parts kit.
• Four rubber bumpers (“feet”) for the tilt stand
(PN 42149).
• Five cable ties (PN 15631).
• One 8/32NC hex kep nut (PN 14626) and two
internal tooth lock washers (PN 15134).
• One, three-foot ground wire (PN 68444) for
mounting to backplate for additional
grounding (see Figure 2-7 on page 11).
2.2 Enclosure Disassembly
The indicator enclosure must be opened to connect
cables for load cells, communications, and power.
Before opening the unit, ensure the
power is disconnected from the power
outlet.
Ensure power to the indicator is disconnected, then
place the indicator face-down on an antistatic work
mat. Remove the screws that hold the backplate to the
enclosure body, then lift the backplate away from the
enclosure and set it aside.
2.3 Hazardous Area Installation of the
320IS Plus
The following information is provided to help the
installer with the correct installation of the 320IS Plus
system. See Figure 2-1 on page 8 for a diagram of a
typical intrinsically safe system.
2.3.1 Power Supply to Indicator
The indicator should be powered by an FM-approved
Rice Lake power supply or alternatively from an
external battery pack. The power requirements of the
320IS Plus are as follows:
• Minimum input voltage: 5.8 V
• Maximum input voltage: 7.9 V
• Peak current consumption: 190 mA
• Average input current (with four load cells):
140 mA
The DC power cable should be attached to connector
CN1 (see Table 2-1). Care must be taken to wire CN1
with the correct DC polarity. See Section 2.4 on
page 9 for information on cabling through metal cord
grips.
A separate conduit system is recommended for
installation. The type suggested for this application is
3/4" rigid steel conduit with pull boxes located at
required intervals. The conduit provides additional
noise protection for the low-level signals, while
automatically complying with the requirements for
two-inch separation between intrinsically safe circuits
and other electrical cables. Conduit seals are
necessary where a gas tight seal is required between
hazardous area and safe area.
Caution
CN1 Pin Function Wire Color
1+ Voltage (5.8 – 7.9 V) Green
2Ground (V–, Common) Brown
Table 2-1. DC Power Supply Connections
Warning

8320IS Plus Installation Manual
Figure 2-1. Intrinsically Safe System Diagram
2.3.2 AC Power Wiring
Standard units are powered by an entity-approved
power supply. We recommend the 100–240 VAC into
RLWS IS-EPS-100-240 Intrinsically safe DC output
power supply (PN 72713).
See the IS-EPS-100-240 Power Supply Instruction
Sheet (PN 79820) for information on fuse
replacement, wiring and power specifications.
2.3.3 Battery Option
NOTE: Initial charge for battery is 14 hours.
The optional battery package provides an intrinsically
safe battery pack that can replace the power supply.
The battery is approved for use in hazardous
environments and is ideal for limited use operations
such as bench scales and platform scales. A low
battery error message will display to indicate that the
battery needs to be recharged. The recommended
initial battery charge time is 14 hours.
NOTE: See Battery Charging Instruction Sheet (PN
96567) for instructions on chargng the battery.
Load Cell Size Quantity of cells Operating Time
350Ωload cell 150 hours
435-40 hours
700Ωload cell 835-40 hours
Table 2-2. Estimated Battery Operating Times

Installation 9
2.4 Cable Connections and Installation
The following sections contain information on cable
connections and installation for the 320IS Plus .
NOTE: Intrinsically safe cables are specified by
control drawing. All cables must have appropriate
internal inductance and capacitance. Cable lengths are
based on group classifications.
Figure 2-2. Metal Cord Grip
2.4.1 Braided Power Cable Connection
Use the following procedure for connecting braided
power cable:
1. Carefully remove 3" of insulation and 2 1/2"
of braid from cable.
2. Remove domed cap and reducing gland from
cord grip and place them on the cable. See
Figure 2-2.
3. Install cable through cord grip stem, leaving
braid outside of cord grip.
4. Lower reducing gland to edge of insulation
and wrap braid over metal part of reducing
gland.
5. Insert cable and reducing gland into cord grip
stem.
6. Lower domed cap onto cord grip and tighten
until a small swelling of the rubber between
the domed cap and the cable builds. See
Figure 2-3 on page 10.
7. Wire cable to connector CN1. See
Section 2.3.1 on page 7.
2.4.2 Foil Power Cable Connection
Use the following procedure for connecting foil power
cable:
1. Carefully remove 3" of insulation and 2 1/2"
of foil from cable.
2. Remove domed cap and reducing gland from
cord grip and place them on the cable. See
Figure 2-2.
3. Install cable through cord grip stem, leaving
foil outside of cord grip.
4. Lower reducing gland to edge of insulation
and wrap foil over metal part of reducing
gland leaving the silver side out.
5. Insert cable and reducing gland into cord grip
stem.
6. Lower domed cap onto cord grip and tighten
until a small swelling of the rubber between
the domed cap and the cable builds. See
Figure 2-3 on page 10.
7. Wire cable to connector CN1. See
Section 2.3.1 on page 7.
2.4.3 Braided Load Cell Cable Connection
Use the following procedure for connecting braided
load cell cable:
1. Carefully remove 8" of insulation and 7 1/2"
of braid from cable.
2. Remove domed cap and reducing gland from
cord grip and place them on the cable. See
Figure 2-2.
3. Install cable through cord grip stem, leaving
braid outside of cord grip.
4. Lower reducing gland to edge of insulation
and wrap braid over metal part of reducing
gland
5. Insert cable and reducing gland into cord grip
stem.
6. Lower domed cap onto cord grip and tighten
until a small swelling of the rubber between
the domed cap and the cable builds. See
Figure 2-3 on page 10.
7. Wrap wires through ferrite core two times
leaving ferrite as close to the backplate as
possible.
8. Wire cable to connector CN3. See
Section 2.4.5 on page 10.
2.4.4 Foil Load Cell Cable Connection
Use the following procedure for connecting foil load
cell cable:
1. Carefully remove 8" of insulation and 7 1/2"
of foil from cable.
2. Remove domed cap and reducing gland from
cord grip and place them on the cable. See
Figure 2-2.
3. Install cable through cord grip stem, leaving
foil outside of cord grip.
4. Lower reducing gland to edge of insulation
and wrap foil over metal part of reducing
gland leaving the silver side out.
5. Insert cable and reducing gland into cord grip.
6. Lower domed cap onto cord grip and tighten
until a small swelling of the rubber between
the domed cap and the cable builds. See
Figure 2-3 on page 10.
Domed Cap
Reducing Gland
Stem

10 320IS Plus Installation Manual
7. Wrap wires through ferrite core two times
leaving ferrite as close to the backplate as
possible.
8. Wire cable to connector CN3. See
Section 2.4.5 below.
Figure 2-3. Correct Cord Grip Compression
Figure 2-4. Cable Connections
2.4.5 Load Cells
To attach cable from a load cell or junction box, use
six-position connector in parts kit. See Section 2.4 on
page 9 for information on cabling through metal cord
grips.
Wire the load cell cable from the load cell or junction
box to connector CN3 as shown in Figure 2-8 on page
12. If using 6-wire load cell cable (with sense wires),
remove jumpers J1 and J2 before installing connector
CN3. For four-wire installation, leave jumpers J1 and
J2 on.
When connections are complete, reinstall connector
CN3 on the board and use two cable ties to secure the
load cell cable to the inside of the enclosure.
Figure 2-5. CN3 Load Cell Connections
Load cell
connector
Power cable
connector
Green = +5
Brown = Gnd
125mA fully –
encapsulated
fuses
Optical output
Optical input
Ferrite core
1 2 34 5
6
CN3
-Excitation
-Sense -Signal +Signal +Sense +Excitation

Installation 11
2.5 Fiber Optics Installation
The 320IS Plus is equipped with a duplex fiber optic
port for communicating with an I/O Module located
outside the hazardous area. This is the only
communications channel of the indicator. The
indicator communicates with external devices through
the optional I/O Module’s physical interfaces
(RS–232, RS–422, RS–485, Current Loop) and
provides analog and digital I/O functions such as
setpoint relays and analog outputs.
The fiber optics port is located on the indicator CPU
board (see Figure 2-8 on page 12).
2.5.1 Assembling Fiber Optics Connectors
Use the following steps for assembling the fiber optic
connectors of the 320IS Plus :
1. Cut off the ends of the fiber optic cable (PN
74000) with a single-edge razor blade or hot
knife (PN 85548). Try to obtain a precise 90º
angle.
2. Insert the fiber through the locking nut and
into the connector until the core tip seats
against the internal micro-lens.
3. Screw the connector locking nut down to a
snug fit, locking the fiber in place.
4. Secure fiber with 3-inch nylon cable ties in
parts kit and 3/4-inch square nylon mounts.
Figure 2-6. Fiber Optics Connector
2.6 Enclosure Reassembly
Once cabling is complete, position the backplate over
the enclosure and reinstall the backplate screws. Use
the torque pattern shown in Figure 2-7 to prevent
distorting the backplate gasket. Torque screws to 15
in-lb (1.7 N-m).
Figure 2-7. 320IS Plus Enclosure Backplate
CN3 Pin Function
1-Excitation
2-Sense
3-Signal
4+Signal
5+Sense
6+Excitation
NOTE:
• For six-wire connections, remove jumpers J1 and
J2.
• For four-wire connections, leave jumpers J1 and
J2 on.
Table 2-3. CN3 Pin Assignments
Optical Fiber
Locking Nut
Positioning Foot
Housing
Lens
Mounting Hole
Device
LED
Setup switch access screw
Fillister head screws
10
9
8
7
4
3
1
2
56
Torque pattern
Load cell connection cord grip
DC power cord grip
Fiber optics
cord grip
Ground lug

12 320IS Plus Installation Manual
Figure 2-8. 320IS Plus CPU Board
Part Number Description (Quantity) Part Number Description (Quantity)
45043 4 in. W/No. 8 Ground Wire 14626 8–32NC Hex Kep Nut
16492 Earth Ground Label 19538 1.25 x 1 Slotted Black Post
15627 PG–9 Metal Lock Nut 91852 PG–9 Metal Cord Grip
15626 PG–9 Black Cord Grip 82432 125 mA Encapsulated Time–Lag Fuse
50962 PCN–9 Black Nut 72916 Backplate
45042 SS Bonded Sealing Washer 14862 8–32NC x 3/8 Screw
39037 Backplate Gasket 68216 Rice Lake Nameplate
42640 1/4 – 28NF x 1/4 Screw 44676 Bonded Sealing Washer
29635 SS Tilt Stand 68403 1/4 – 20 Two-Prong Black Knob
15144 1/4 x 1 x 1/16 Nylon Washer 84147 Reconditioned/Exchange 320IS Plus
19538 1/4 x 1 Slotted Black Post
Table 2-4. Hardware Replacement List

Configuration 13
3.0 Configuration
To configure the 320IS Plus indicator, the indicator
must be placed in setup mode. The setup switch is
accessed by removing the large fillister head screw on
the enclosure backplate. Setup mode is enabled by
inserting a non-metalic screwdriver into the access
hole and pressing the pushbutton configuration
switch.
NOTE: SERIAL, PFORMT, SETPNT, DIGIN, and ALGOUT
functions require fiber optics communications with I/O
module in order to operate.
When the indicator is placed in setup mode, the word
CONFIG is shown on the display. The CONFIG menu
is the first of nine main menus used to configure the
indicator. Detailed descriptions of these menus are
given in Section 3.2 on page 15. When configuration
is complete, scroll to the CONFIG menu then press
the (ZERO) key to exit setup mode. Replace the
setup switch access screw.
3.1 Configuration Methods
The 320IS Plus indicator can be configured by using
the front panel keys to navigate through a series of
configuration menus or by sending commands or
configuration data to the EDP port of the optional I/O
Module. Configuration using the menus is described
in Section 3.2 on page 15.
Configuration using the EDP port can be
accomplished using either the EDP command set
described in Section 5.0 on page 35 or Version 3.1 or
later of the Revolution™III configuration software.
3.1.1 Revolution III Configuration
The Revolution III configuration software is the
preferred method for configuring the 320IS Plus
indicator. Revolution III runs on a personal computer
to set the configuration parameters for the indicator.
When Revolution III configuration is complete,
configuration data can be downloaded to the indicator
through the optional I/O Module’s EDP port.
Figure 3-1. Sample Revolution III Configuration Display
Revolution III supports both uploading and
downloading of indicator configuration data. This
capability allows configuration data to be retrieved
from one indicator, edited, then downloaded to
another.
To use Revolution III, do the following:
1. Install Revolution III on an IBM-compatible
personal computer running Windows®98 or
later. Minimum system requirements are
32MB of system RAM (64MB for NT4/2000/
XP) and at least 40MB of available hard disk
space.
2. With both the I/O Module and indicator
powered off, connect the PC serial port to the
RS-232 pins on the I/O Module’s EDP port
(See Section 9.0 on page 61 or the I/O
Module Installation Manual, PN 78076 for
terminal pin diagrams).
3. Power up the I/O Module and the indicator.
Use the setup switch to place the indicator in
setup mode.
4. Start the Revolution III program.
Figure 3-1 shows an example of one of the Revolution
III configuration screens.
Revolution III provides online help for each of its
configuration sections. Parameter descriptions
provided in this manual for front panel configuration
can also be used when configuring the indicator using
Revolution III: the interface is different, but the
parameters are the same.
3.1.2 EDP Command Configuration
The EDP command set can be used to configure the
320IS Plus indicator using a personal computer,
terminal, or remote keyboard. Like Revolution III,
EDP command configuration sends commands to the
indicator EDP port; commands can be sent using any
external device capable of sending ASCII characters
over a serial connection.
EDP commands duplicate the functions available
using the indicator front panel and provide some
functions not otherwise available. EDP commands can
be used to simulate pressing front panel keys, to
configure the indicator, or to dump lists of parameter
settings. See Section 5.0 on page 35 for more
information about using the EDP command set.

14 320IS Plus Installation Manual
3.1.3 Front Panel Configuration
The 320IS Plus indicator can be configured using a series of menus accessed through the indicator front panel
when the indicator is in setup mode. Table 3-1 summarizes the functions of each of the main menus.
NOTE:SERIAL, PFORMT, SETPNT, DIG IN, and ALGOUT menu functions require fiber optics
communications with I/O module to operate.
Figure 3-2. Front Panel Key Functions in Setup Mode
Menu Menu Function
CONFIG Configuration Configure grads, zero tracking, zero range, motion band, overload, tare function, push button
enable, and digital filtering parameters.
FORMAT Format Set format of primary and secondary units, display rate.
CALIBR Calibration Calibrate indicator. See Section 4.0 on page 33 for calibration procedures.
SERIAL Serial Configure EDP and printer serial ports.
PROGRM Program Set regulatory mode, unit ID, auto zero, consecutive number values, and battery standby.
PFORMT Print Format Set print format used for gross and net tickets. See Section 6.0 on page 43 for more
information.
SETPNT Setpoints Configure setpoints. See Section 7.0 on page 46 for setpoint configuration.
DIGIN Digital Input Assign digital input functions. See Section Figure 3-16. on page 30 for more information.
ALGOUT Analog Output Configure analog output. See Section 3.2.8 on page 31 for analog output configuration.
VERS Version Display installed software version number.
Table 3-1. 320IS Plus Menu Summary
Move Up and
Down (vertically) Enter Move Left and
Right (horizontally)