Rice Lake 920i Installation Manual V4.01
Programmable HMI Indicator/Controller
®
Installation Manual
Rev H Board
Requires
Minimum
Version 3.14
Version 4.01
67887
Contents
Technical training seminars are available through Rice Lake Weighing Systems.
Course descriptions and dates can be viewed at www.ricelake.com or obtained by
calling 715-234-9171 and asking for the training department.
About This Manual ................................................................................................................................... 1
1.0 Introduction.................................................................................................................................. 1
1.1 Operating Modes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
1.2 Indicator Operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.3 Softkey Operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.4 Contrast Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.5 System Configurations and Options. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.6 Summary of Changes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.7 Hardware and Software Compatibility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.0 Installation ................................................................................................................................... 8
2.1 Unpacking and Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.2 Enclosure Disassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.3 Cable Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.3.1 Cable Grounding. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.3.2 Load Cells. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.3.3 Serial Communications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2.3.4 Digital I/O . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
2.4 Installing Option Cards. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
2.5 Expansion Board Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
2.6 Enclosure Reassembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
2.7 CPU Board Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
2.8 Fuse Replacement. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
2.9 Battery Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
2.10 Parts Kit Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
2.11 Replacement Parts and Assembly Drawings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
3.0 Configuration ............................................................................................................................. 22
3.1 Configuration Methods . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
3.1.1 iRev Configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
3.1.2 Serial Command Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
3.1.3 Front Panel Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
3.1.4 Multi-Range and Multi-Interval Scales . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
3.1.5 Total Scale Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
3.2 Menu Structures and Parameter Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
3.2.1 SCALES Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
3.2.2 SERIAL Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
3.2.3 FEATURE Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
3.2.4 PFORMT Menu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
3.2.5 SETPTS Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
3.2.6 DIG I/O Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
3.2.7 ALGOUT Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
3.2.8 FLDBUS Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
3.2.9 VERS Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
4.0 Calibration ................................................................................................................................. 55
4.1 Gravity Compensation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
© June 2011 Rice Lake Weighing Systems. All rights reserved. Printed in the United States of America.
Rice Lake Weighing Systems is an ISO 9001 registered company.
Specifications subject to change without notice.
Version 4.01
4.2 Front Panel Calibration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Rice Lake continually offers web-based video training on a growing selection of
product-related topics at no cost. Visit www.ricelake.com/webinars.
4.3 Serial Command Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
4.4 iRev Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
5.0 Using iRev .................................................................................................................................. 59
5.1 Installing and Starting the Program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
5.2 Saving and Opening Files . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
5.3 Hardware Configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
5.4 Configuring Scales. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
5.4.1 Configuring Other Parameters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
5.4.2 Setpoints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
5.5 Configuring the Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
5.6 Connecting to the Indicator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
5.6.1 Downloading to the Indicator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
5.6.2 Uploading Configuration to iRev . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
5.7 Installing Software Upgrades . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
6.0 Print Formatting ......................................................................................................................... 62
6.1 Print Formatting Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
6.2 LaserLight Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
6.3 Default Print Formats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
6.4 Customizing Print Formats. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
6.4.1 Using iRev . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
6.4.2 Using the Front Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
6.4.3 Using Serial Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
7.0 Truck Modes .............................................................................................................................. 68
7.1 Using the Truck Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
7.2 Using the Truck Regs Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
7.3 Weigh-In Procedure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
7.4 Weigh-Out Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
7.5 Single-Transaction Tare Weights and IDs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
8.0 Setpoints .................................................................................................................................... 70
8.1 Batch and Continuous Setpoints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
8.2 Setpoint Menu Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
8.3 Batch Operations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
8.4 Batching Examples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
9.0 Serial Commands ...................................................................................................................... 89
9.1 The Serial Command Set. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
9.1.1 Key Press Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
9.1.2 Reporting Commands. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
9.1.3 Clear and Reset Commands. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
9.1.4 Parameter Setting Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
9.1.5 Normal Mode Commands. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98
9.1.6 Batching Control Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99
9.1.7 Database Commands. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99
9.2 Widget Programming. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101
9.2.1 Scale Widgets. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101
9.2.2 Bitmap Widgets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101
9.2.3 Bargraph Widgets. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102
9.2.4 Label Widgets. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102
9.2.5 Numeric Widgets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102
9.2.6 Symbol Widgets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103
ii 920i Installation Manual
10.0 Appendix .................................................................................................................................. 106
10.1 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106
10.1.1 Option Card Diagnostic Errors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107
10.1.2 Using the HARDWARE Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107
10.1.3 User Program Diagnostic Errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107
10.1.4 Using the XE Serial Command. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108
10.2 Regulatory Mode Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109
10.3 PS/2 Keyboard Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110
10.4 Serial Scale Interface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111
10.5 Local/Remote Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111
10.6 Custom Stream Formatting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112
10.7 Stream Formatting Examples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115
10.7.1 Toledo 8142 Indicator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115
10.7.2 Cardinal 738 Indicator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116
10.7.3 Weightronix WI -120 Indicator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117
10.8 Data Formats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118
10.9 Digital Filtering. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119
10.10 Conversion Factors for Secondary Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120
10.11 Audit Trail Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121
10.11.1 Displaying Audit Trail Information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121
10.11.2 Printing Audit Trail Information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121
10.12 Dimension Drawings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122
10.13 Printed Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 126
10.14 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127
920i Limited Warranty ......................................................................................................................... 128
iii
iv 920i Installation Manual
About This Manual
This manual is intended for use by service technicians
®
920i
responsible for installing and servicing
digital
weight indicators. This manual applies to Version 4.x
920i indicator software.
of the
NOTES: Version 4.x requires Rev E CPU board or newer.
Version 4.00 requires Rev E; version 4.01 requires Rev F or
higher. If using in conjunction with iQUBE 1, use Version 3.x
and iRev 3; If using in conjunction with iQUBE
4.x and iRev 4.
2
, use version
Configuration and calibration of the indicator can be
accomplished using the
iRev 4
™
configuration utility,
serial commands, or the indicator front panel keys.
See Section 3.1 on page 22 for information about
configuration methods.
1.0 Introduction
The 920i is a programmable, multi-channel digital
weight indicator/controller. The configuration can be
performed using the front panel, with an attached
1
®
PS/2
Custom event-driven programs can be written with the
iRite language up to 512K in program size. These
programs are compiled with an
which can only be downloaded into the indicator. The
RLWS Web Update utility can be used to download
920i firmware upgrades to a PC from the RLWS web
site;
software into the
Onboard Features
Features of the basic 920i include:
-type keyboard, or using the iRev 4 utility.
iRite compiler utility,
iRev 4 provides functions for installing the new
920i.
• Support for A/D scale or s
erial scale inputs.
The maximum number of scale inputs is 28;
these can be combined to represent up to 32
scale configurations.
• Six digital I/O channels on main board, each
configurable as
either input or output.
• Four serial ports on main board (Ports 1–4)
sup
port duplex RS-232 up to 11 5200 bps. Port
2 supports hardware handshaking and remote
keyboard input; Ports 3 and 4 support 20mA
output; Port 4 supports 2-wire RS-485
communications.
• External DB-9 and DIN-8 connectors for
connection to a PC and attachment of
serial
PS/2-type remote keyboard.
• Available in 115 VAC and 230 VAC North
rican and European versions.
Ame
1. PS/2® is a registered trademark of IBM Corporation.
Some procedures described in this manual
require work inside the indicator enclosure.
These proc
qualified service personnel only.
edures are to be performed by
Authorized distributors and their employees
can view or download this manual from the
Rice Lake W
eighing Systems distributor
site at www.ricelake.com/manuals.
The Operator Car
d included with this manual
provides basic operating instructions for users of the
920i. Please leave the Operator Card with the
indicator when installation and configuration are
Other features include:
• 6 2K of non-volatile RAM can be allocated to
databases
using the
• Configurable print form ats
iRev 4 database editor.
can be defined for
up to 1000 characters each. These formats are
used to print gross or net weights, truck in/out
weights, setpoint weights, accumulator
weights, alert messages, and header
information. Additional print formats can be
created with
iRite.
• Six truck modes to store and recall weights
for gross, tare, and
net printing. The truck
register contains fields for ID number, weight,
and the transaction time and date. W eights can
be stored permanently or erased at the end of
the transaction.
• T he setpoint engine supports 31 configurable
int kinds. Setpoints can be arranged in a
setpo
sequential batch routine of up to 100 steps. If
setpoints are configured as free running
setpoints, they can be tied to program control.
This allows for simultaneous batching
operations to be written with the
iRite
language.
The
920i is NTEP-certified for Classes III and III L at
10,000 divisions. See Section 10.14 on page 127 for
more information about additional certifications
and
approvals.
Option Cards
The CPU board provides two slots for installing A/D
or other option cards. Additional option cards can be
added using either two-card or six-card expansion
boards connected to the CPU board via the expansion
bus. Available option cards include:
Introduction 1
• Single- and dual-channel A/D cards to drive up to
sixteen 350load cells per A/D card. A/D cards
support both 4- and 6-wire load cell connections.
A/D cards are matched to al
low interchangeability
without having to recalibrate the scale. Calibration
includes support for latitude and elevation
compensation, millivolt calibration, and five-point
linearization.
• Single- or dual-channel Analog output card for
–10 VDC or 0–20 mA tracking of gross or net
0
weight values.
• Dual-channel serial expansion card provides one
additional
RS-485 port or two ports for either
RS-232 or 20mA communications at up to
19200 bps.
• 24-channel digital I/O expansion card.
• 1MB memory expansion card for expanded
database capability
• Pulse input card for use with
.
pulse count and
pulse rate setpoints.
• Dual-channel analog input
card supports 0–10
VDC, 0–20 mA, ambient temperature, and four
types of thermocouple.
• Bus interface cards for Ethernet,
™
EtherNet
/IP
Remote I/O
5
™
ControlNet
networks.
1
, DeviceNet
3
, Profibus® DP4, and
2
™
, Allen-Bradley
See Section 2.5 on page 14 for detailed information
about expansion board configurations. Part numbers
ailable option cards and expansion boards are
of av
listed in Section 1.4 on page 4.
Front Panel
The 920i front panel, shown in Figure 1-1, consists of
a 27-button keypad with a lar
ge backlit LCD display.
The keys are grouped as five configurable softkeys,
five primary scale function keys, four navigation keys,
and numeric entry keys. The display can be
graphically configured using
Weight information is displayed with
iRev 4 software.
a graphical scale
in six font sizes up to 1.2 inches. Up to four scale
widgets can be displayed in legal-for-trade,
multiple-scale applications. Status areas on the display
1. EtherNet/IP™ is a trademark of ControlNet
International, Ltd., under license by the Open
DeviceNet Vendor Association.
2. DeviceNet™ is a trademark of the Open DeviceNet
Vendor Association.
3. Allen-Bradley
Allen-Bradley Company, Inc., a Rockwell International
company.
4. Profibus
International.
5. ControlNet™ is a trademark of ControlNet
ternational
In
®
, PLC®, and SLC™ are trademarks of
®
is a registered trademark of Profibus
are used for operator prompts and entering data. The
remainder of the display can be graphically
configured for representation of a specific application.
Display contrast can be adjusted with the LCD
contrast potentiometer or CONTRAST parameter ..
SOFTKEY1 SOFTKEY2
Enclosures
SOFTKEY3
SOFTKEY4 SOFTKEY5
PRINT
UNITS
Figure 1-1. 920i Front Panel
The 920i is available in four enclosures: universal
(tilt-stand), deep enclosure, panel mount, and wall
mount. Stainless steel enclosures are rated for NEMA
4X/IP66. This manual provides assembly drawings
and replacement parts lists for the universal model;
supplemental documentation provides information
specific to the panel mount and wall mount models
(Section 1.4 on page 4).
1.1 Operating Modes
The 920i has two modes of operation:
Normal mode
Normal mode is the weighing mode of the
indicator. The indicator displays gross, net, or tare
weights as required, using the secondary display
to indicate scale status and the type of weight
value displayed. Once configuration is complete
and a legal seal is affixed to the larg e fillister -head
screw on the indicator enclosure, this is the only
mode in which the
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 l
head screw from the enclosure. Insert a
screwdriver or a similar tool into the access hole
and press the setup switch once. The indicator
display changes to show scale configuration
menus.
920i can operate.
arge fillister
2 920i Installation Manual
1.2 Indicator Operations
Basic 920i operations are summarized below:
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. If no tare has been entered or
acquired, the display remains in gross mode.
Gross mode is indicated by the word
OIML mode); net mode is indicated by the word
Toggle Units
Press the UNITS key to switch between primary,
secondary, and tertiary units.
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.
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.
3. Display shifts to net weight and shows the word
Net on the display.
View Stored Tare Value
The Display Tare softkey must be enabled.
1. Press the
Remove Stored Tare Value
Display Tare softkey.
1. Remove all weight from the scale and wait for
the standstill annunciator (
2. Press the
ZERO key). Display shifts to gross weight and
TARE key (or, in OIML mode, the
shows the word Gross.
Print Ticket
1. Wait for the standstill annunciator ( ).
2. Press the
PRINT key to send data to the serial
port. To print tickets using auxiliary formats,
press the number key for the format, then press
PRINT. For example, to print using AUXFMT2,
2, then PRINT.
press
Accumulator Functions
The accumulator must be enabled before use in either
normal mode or setpoint operations. Once enabled,
weight (net weight if a tare is in the system) is
accumulated whenever a print operation is performed
using the
PRINT key, digital input, or serial command.
The scale must return to zero (net zero if a tare is in
the system) before the next accumulation.
Gross (or Brutto in
Net.
).
).
).
Display Accum softkey can be configured to
The
display the current accumulator value. Printing while
the accumulator is displayed, or when the setpoint
PSHACCUM function is active, uses the ACCFMT
print format (see Section 6.0 on page 62).
Press the
CLEAR key twice to clear the accumulator.
1.3 Softkey Operations
Softkeys can be defined to provide additional operator
functions for specific applications. Softkey assignments
are listed on the tabs shown at the bottom of the LCD
display; softkey functions are activated by pressing the
arrow keys below the softkey tabs (Figure 1-1 on
page 2). The displayed set of softkey
the indicator configuration and program.
Softkey Description
Time/Date Displays current time and date; allows time
Display Tare Displays tare value for the current scale
Display
m
Accu
Display ROC Displays rate-of-change value, if enabled,
Setpoint Displays a menu of configured setpoints;
Batch Start Starts a configured batch.
Batch Stop Stops a running batch and turns off all
Batch Pause Pauses a running batch. (Same as stop, but
Batch Reset Stops a batch and resets it to the first batch
Weigh In Allows truck ID entry; generates
Weigh Out Allows truck ID entry; generates weigh-out
Truck Regs Displays truck register; allows deletion of
Unit ID Allows display or change of Unit ID.
Select Scale For multi-scale applications, provides a
Diagnostics Provides access to diagnostic displays for
Alibi Allows previous print transactions to be
and date change.
Displays accumulator value, if enabled, for
the current scale.
fo
r the current scale.
allows display and change of so
parameters.
associated digital outputs. Requires a batch
start to resume processing.
gital outputs, if on, are not turned off.)
di
step.
ticket for truck weighing applications.
ticket for truck weighing applications.
individual or all entries. Truck register can be
printed by pressing the PRINT key while the
tru
ck register is displayed.
ompt to enter the scale number to be
pr
displayed.
ttached iQUBE2 junction boxes.
a
ecalled and reprinted.
r
NOTE: Alibi tracking must be turned on
when in OIML m
ode.
s is determined by
me setpoint
weigh-in
Table 1-1. Configurable Softkeys
Introduction 3
Softkey Description
Contrast Adjusts the screen contrast.
Test Future functionality.
Stop Sends AuxFmt1 out its configured port to
Go Sends AuxFmt2 out its configured port to
Off Sends AuxFmt3 out its configured port to
Screen Allows multiple display scr
F1–F10 User-programmable keys; defined by
More… For applications with more than five defined
ompt a red light on a LaserLight.
pr
prompt a green light on a LaserLight.
turn a LaserLight red/green light off.
eens without a
user program.
application.
softkeys, the More… key is automatically
assigned to the fifth softkey position. Press
More…
to toggle between softkey groups.
1.4 Contrast Adjustment
There are two methods for adjusting contrast: a pot
which can be manually turned (see Figure 2-3 on
page 10), and a digital contrast (CONTRAST
parameter, see Figure 3-11 on page 42). Front panel
adjustment can be made by assigning the softkey . This
is available fo
The potentiometer should be adjuste
position and the digital contrast used for fine-tuning.
r Rev H CPU board or higher.
d to the center
Table 1-1. Configurable Softkeys (Continued)
1.5 System Configurations and Options
Table 1-2 lists the 920i system models and part numbers. All models include CPU board with two option card
slots, PS/2 and DB-9 comm ports. Each model has a single- or dual-channel A/D card insta lled in Slot 1.
Feature Universal Deep Universal Panel Mount Wall Mount
CPU board with two option card slots X X X X
Single- or dual-channel A/D card in slot 1 X X X X
DIN-8 and DB-9 communications ports X X X X
25W internal power supply X
65W internal power supply X X X
Supports internal 2-card expansion board X X X
Supports internal 6-card expansion board X
Supports internal relay rack X
Table 1-2. 920i Model Features
Model PNs
System Model
Universal (tilt stand) model, 115 VAC 67527 69767
Universal (tilt stand) model, 230 VAC,
Universal (tilt stand) model, 230 VAC, European, CEE 7/7 power cord 69522 69774
Deep enclosure model, 115 VAC 82455 82456
Deep enclosure model, 230 VAC, Nort
Deep enclosure model, 230 VAC, European, CEE 7/7 power cord 82459 82460
Panel mount model, 115 VAC 69764 69771
Panel mount model, 230 VAC, North American, NEMA 15-5 power cord 69766 69777
Panel mount model, 230 VAC, European, CEE 7/7 power cord 72137 72138
Wall mount model, 115 VAC 69763 69770
North American, NEMA 15-5 power cord 67615 69772
h American, NEMA 15-5 power cord 82457 82458
Single-Channel A/D Dual-Channel A/D
4 920i Installation Manual
Table 1-3. Part Numbers for 920i Models
Model PNs
System Model
Wall mount model, 230 VAC, North American, NEMA 15-5 power cord 69765 69776
Wall mount model, 230 VAC, European, CEE 7/7 power cord 72133
Model designations shown on indicator serial tags include a suffix (xy) that describes the enclosure type (x) and power input (y).
Codes used for this suffix are as follows:
x: 1 = Desktop; 2 = Universal; 3 = Wall mount; 4
y: A = 115 VAC; B = 230 VAC; C = 9–36 VDC; D = 10–60 VDC
Option Cards
= Panel mount; 5 = Deep enclosure
Table 1-3. Part Numbers for 920i Models
Table 1-4 lists the available 920i option cards. Any of
the listed option cards can be installed in Slot 2 of the
board or in any available slot of an attached
CPU
expansion board.
Option Card PN
Single-channel A/D card 68532
Dual-channel A/D card 68533
Single-channel analog output card 67602
Dual-channel analog output card 103138
Dual serial port expansion card 67604
24-channel digital I/O expansion card 67601
1MB NV RAM memory expansion card 67600
Pulse input card 67603
Ethernet communications card 71986
EtherNet/IP interface card 87803
DeviceNet interface card 68541
Allen-Bradley Remote I/O interface card 68539
Profibus DP interface card 68540
ControlNet interface card 103136
Analog input card with thermocouple input 87697
Two-card expansion board for panel mount
e
nclosure, slots 3–4. Includes 2-inch, 34-pin
ribbon cable and power supply cable.
Two-card expansion board for wall mount
closure, slots 3–4. Includes 24-inch, 34-pin
en
ribbon cable and power supply cable.
Six-card expansion board for wall mount
en
closure, slots 3–8. Includes 16-inch, 34-pin
ribbon cable and power supply cable.
Table 1-5. Part Numbers for 920i Expansion Boards
Relay Options
8-, 16-, and 24-channel relay racks are available for all
920i systems. Relays can be installed internally in the
wall mount enclosure; all other models require an
external enclosure for the relays. Consult factory for
details.
DC Power Supplies
Two DC power supplies are available for mobile 920i
applications:
PN 97474, 9–36 VDC supply
Single-Channel A/D Dual-Channel A/D
72134
Expansion Board PN
71743
69782
69783
PN 99480, 10–60 VDC supply
Table 1-4. Part Numbers for 920i Option Cards
Expansion Boards
Table 1-5 lists the expansion boards available for the
panel mount and wall mount enclosures. The panel
unt enclosure can accommodate a single 2-card
mo
expansion board; the wall mount enclosure supports
either a 2-card or a 6-card expansion board. Any of
the available option cards can be installed in any
available expansion board slot.
A second two- or six-card expansion board can also be
connected to the
920i, providing up to 14 option card
slots. Consult factory for details. See Section 2.5 on
page 14 for detailed information ab
port assignments for expanded s
out slot and serial
ystem configurations.
Consult factory for more information.
Outdoor Display
An optional display, PN 100759, is available for
applications requiring use of the
920i in bright, sunlit
environments. Consult factory for details.
1.6 Summary of Changes
Changes to recent editions of this manual are listed
below:
Version 4.01
• HWSUPPORT returns (see Section 9.1.2 on
page 90).
• The new CPU board (PN 109549) was
designed to take
advantage of newer
technology and eliminate any parts that are at
Introduction 5
end-of-life stage.
• T here is no SDRAM module on the back sid e
as the memory is now on the main board.
• Added two additional DIO points, 5 and 6.
• The new boot monitor V1.13 has mapping fo r
the new memory.
• The new board requires minimum version
3.14 or newer. Version 3.14 supports
iQUBE
while 4.xx supports iQUBE2.
Version 4.0
• Added support for iQUBE2 and removed
support for
NOTE: Version 4.0 requires Rev E CPU board or newer.
Version 3.13
iQUBE.
• Added a new value <AN> to the Print
Formatting section of the manual (see Section
6.1, Table 6-1 on page 60).
• Corre cted comparisons to reduce the number
of power-up calibrations counted by Audit
Trail.
• Added the speed-up of loading a user program
by only erasing needed memory blocks.
Version 3.10
• Error Recovery - version 3.10.00 of the 920i
now has a very sophisticated error recovery
for the battery backed NVRAM. when a Save
and Exit is performed after a Configuration
and Calibration is performed, a copy of the
NVRAM is stored in Flash for future
recovery. If the 920i is powered off at any
time and the battery is not at peak
performance, the NVRAM could come up
with corrupted data. The next time the 920i is
powered up, the NVRAM is tested for a
correct CRC checksum. If this is bad, there
will be a special screen displayed showing the
corrupt locations with directions to press
ENTER to continue. The core will rewrite to
NVRAM using the last copy of the last Save
and Exit. At this time Date and Time are also
checked. It will then open the Date/Time full
screen edit function so the operator can check
the current Date and Time. If correct, all that
is needed is an ENTER key to continue. If
incorrect, the operator can adjust the Date or
Time and then push ENTER to continue.
To ensure the latest copy of NVRAM is
available for a power up, it is recommended
that before powering down the 920i for either
overnight outage or temporary storage, the
unit should be put into setup mode and a Save
and Exit performed which will save a new
copy of the NVRAM. On Legal-For-Trade
units, if this cannot be performed, then the
system will use the last Save and Exit and all
databases and truck data should be uploaded
to a PC prior to powering the 920i down.
• R emoved the EXIT key during Setup mode.
• Adde d a progress message during the clear of
memory and loading a user program (see
Section 5.6.1 on page 61)
Version 3.09
• The battery replacement procedure has been
updated (see
Section 2.9 on page 16).
• A TOKENS parameter has been added to the
SERIAL menu to allow changing the data
stream tokens from the indicator front panel
Section 3.2.2 on page 37).
(see
• Values for SWAP parameter on the FLDBUS
menu have been changed to allow greater
flexibility in byte-swapping for fieldbus cards
Section 3.2.8 on page 53).
(see
• I mproved database handling. Database access
by multiple simultaneous requests is now
controlled by allowing one read or write
operation at a time, on a first-come,
first-served basis.
Version 3.08
• A new value, KBDPRG, on the Port 2 serial
menu allows keyboard scans to be passed
directly to an
iRite user program (see
Figure 3-8 on page 37).
• Support for negative tracking has been added
to the ALGOUT menu (see
Section 3.2.7 on
page 52).
• A new stream token, Z, has been added to the
<S> stream format status identifiers to
indicate center-of-zero (see
Table 10-8 on
page 112).
Version 3.07
• Support has been added for the dual-channel
analog output card (PN 103138) and the
ControlNet interface card (PN 103136).
• New OVRBASE parameter, on the
REGULAT submenu of the FEATURE menu,
allows specification of calibrated or scale zero
as the base for overload calculation. See
page 47 for more information.
• A new top-level menu, FLDBUS, is now
shown if a DeviceNet, Profibus, EtherNet/IP,
or ControlNet is installed.The two parameters
under the FLDBUS menu allow byte
swapping to be enabled (SWAP parameter)
and for the transfer size of the swapped bytes
to be specified (DATASIZE). See
Section 3.2.8 on page 53 for more
information.
• The default A/D sample rate (SMPRAT
parameter on the SCALES menu) has been
6 920i Installation Manual
changed from 120 to 30 Hz.
• The KEXIT command has been removed and
replaced with KSA
VEEXIT. (See
Section Table 9-1. on page 89.)
• Error codes returned on the XE serial
command
have been updated (see Table 10-3
on page 108).
Version 3.05-3.06
• Support for local/remote indicator configurations
provides function equivalent to a legal-for-trade
remote display with keypad for truck scale and
similar applications. See Section 10.5 on
page 111 for more information.
• The description for setting rate of change (ROC)
parameters has been
changed. See Table 3-3 on
page 31 for details.
• New values have been added to the STREAM
ameter on the SERIAL menu to allow
par
streaming of keypad events to another indicator
(4KEYS, KEYPAD) and, for the local/remote
function, to send the complete display image
(DISPLAY). See Section 3.2.2 for more
information.
• Reprinting of any previous print transaction is
now sup
ported by the alibi feature. The feature is
enabled using the ALIBI parameter on the
FEATURE menu; print transactions can be
recalled by assigning an
Alibi softkey, also
configured using the FEAT URE menu (see
Section 3.2.3 on page 42).
• New IMAGE parameter on the FEATURE menu
ows inversion of the display image
all
(blue-on-white or white-on-blue) for support of
the outdoor display option. See Section 3.2. 3.
• Display and printing of audi
t trail information is
described in Section 10.1 1 on page 121.
Version 3.00
• The desktop model of the 920i has been
discontinued. Drawings and parts lists for the
desktop model have been removed from this
manual.
• Added support for multi-range and
nterval scale configurations.
multi-i
• Zero tracking, zero range, and motion band
parameters (SCALES
menu) have been
changed to allow numeric values.
• Added peak hold function to SCALES
menu.
• Added last zero and temporary zero functions
to calibration
menus to allow recalibration
based on previous zero values.
• Enhanced print formatting with addition of
audit format and twenty auxilia
ry formats.
• The SERIAL menu has been restructured to
ide additional parameters for configuring
prov
RS-485 communications. See Figure 3-10 on
page 39.
• A new digital input count (DINCNT) setpoint,
used to count digital input pulses, has
been
added to the supported setpoint kinds. See
Section 8.0 on page 70.
• A SENSE parameter has been added to
tionally invert the value of setpoint digital
op
outputs. See Section 8.0 on page 70.
• TRIGGER (digital output trigger) has been
added as
a selection under the DIG I/O menu
(see Section 3.2.6 on page 50) for custom
applications.
• Support has been added for EtherNet/IP and
analog
input/thermocouple option cards.
1.7 Hardware and Software Compatibility
• CPU board revision A-D was the initial
release and covered versions 1 and 2.
• Revision E was the relea
had a minimum CPU revision, increasing
memory.
• Revisions F-G used the final version of the
d CPU hardware build.
ol
• Revision H boards are of the new design for
the replacement of PN 67612. The new CPU
board
is PN 109549 and requires a minimum
core of 3.14.00.
Important Information Regarding Your 920i CPU Board
Because select components of the 920i CPU have
recently become obsolete, certain design changes have
become unavoidable. Therefore, please be aware that
beginning with Revision H, the CPU board will
support only firmware 3.14 or higher. This does not
affect any pre-existing user programs, and any
performance issues should immediately be brought to
the attention of Rice Lake Weighing Systems.
CPU Board
Revision
A-D 1.00 1.00.00 2.08.00
E 1.10 1.00.00 4.00.00
F-G 1.12 1.00.00 4.01.00
H 1.13 3.14.00 4.01.00
Table 1-6. Hardware and Software Compatibility
Recommended
Boot Monitor
se of version 3 which
Minimum Core
Maximum
Core
Introduction 7
2.0 Installation
This section describes procedures for connecting load
cell, digital I/O, and serial communications cables to
920i indicator. Assembly drawings and
the
replacement parts lists for the universal model are
included for the service technician. See Section 10.12
on page 122 for dimension drawings of the all models.
• Use a wrist strap to ground yourself and
protect components from electrostatic
discharge (ESD) when working inside the
indicator enclosure.
• This unit uses double pole/neutral fusing
which could cre
ate an electric shock hazard.
Procedures requiring work inside the
indicator must be performed by qualified
service personnel only.
• The supply cord serves as the power
disconne
ct for the
920i. The power outlet
supplying the indicator must be installed near
the unit and be easily accessible.
2.1 Unpacking and Assembly
Immediately after unpacking, visually inspect the 920i
to ensure all components are included and
undamaged. The shipping carton should contain the
indicator, this manual, and a parts kit. If any parts
were damaged in shipment, notify Rice Lake
Weighing Systems and the shipper immediately.
See Section 2.10 on page 17 for parts kit contents.
2.2 Enclosure Disassembly
The indicator enclosure must be opened to install
option cards and to connect cables for installed option
cards.
The 920i has no on/off switch. Before
opening the unit, ensure the power cord is
onnected from the power outlet.
disc
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 Cable Connections
The universal model of the 920i provides six cord
grips for cabling into the indicator: one for the power
cord, five to accommodate cabling for option cards.
Install plugs in all unused cord grips to prevent
moisture from entering the enclosure.
2.3.1 Cable Grounding
Except for the power cord, all cables routed through
the cord grips should be grounded against the
indicator enclosure. Do the following to ground
shielded cables:
• Use the lockwashers, clamps, and kep nuts
provided in the
clamps on the enclosure studs adjacent to cord
grips. Install grounding clamps only for cord
grips that will be used; do not tighten nuts.
• Route cables through cord grips and
nding clamps to determine cable lengths
grou
required to reach cable connectors. Mark
cables to remove insulation and shield as
described below:
• For cables with foil shielding, strip insulation
and foil from the cable half an inch (15 mm)
past the gro
Fold the foil shield back on the cable where
cable passes through the clamp. Ensure
the
silver (conductive) side of foil is turned
outward for contact with the grounding
clamp.
• For cables with braided shielding, strip cable
insulation
past the grounding clamp. Strip another half
inch (15 mm) of insulation only to expose the
braid where the cable passes through the
clamp (see Figure 2-1).
Cord grip
Insulated cable
Foil (silver side out)
Shield wire (cut)
parts kit to install grounding
unding clamp (see Figure 2-1).
and braided shield from a point just
NOTE: Install lockwashers
first, against enclosure,
under grounding clamp
Cut insulation here
Braid
Grounding clamp
Cut insulation here
for foil-shielded cables
Length of foil before folding
back on cable insulation
for braided cables
8 920i Installation Manual
Figure 2-1. Grounding Clamp Attachment for Foil-Shielded
and Braided Cabling
• For load cell cables, cut the shield wire just
SIG+
SIG–
SEN–
EXC+
EXC–
J1
JP2JP1
past the grounding clamp. Shield wire
function is provided by contact between the
cable shield and the grounding clamp.
• Route stripped cables through cord grips and
clamps. Ensure
shields contact grounding
clamps as shown in Figure 2-1. Tighten
grounding clamp nuts.
• Finish installation using ca
ble ties to secure
cables inside of indicator enclosure.
2.3.2 Load Cells
To attach cable from a load cell or junction box to an
installed A/D card, route the cable through the cord
grip and ground the shield wire as described in
Section 2.3.1 on page 8.
Next, remove connector J1 from the A/D card. The
nnector plugs into a header on the A/D card (see
co
Figure 2-2). Wire the load cell cable from the load cell
or junction box to connector J1 as shown in Table 2-1.
When connections are complete,
reinstall load cell
connector on the A/D card and use two cable ties to
secure the load cell cable to the inside of the
enclosure.
A/D Card
Connector Pin Function
1 +SIG
2 –SIG
3 +SENSE
4 –SENSE
5 +EXC
6 –EXC
• For 6-wire load cell connections to connector J1, remove
pers JP1 and JP2.
jum
• For 6-wire load cell connections to connector J2 (dual A/D
ca
rds), remove jumpers JP3 and JP4.
Table 2-1. A/D Card Pin Assignments
Figure 2-2. Single-Channel A/D Card
If using 6-wire load cell cable (with sense wires),
remove jumpers JP1 and JP2 before reinstalling
connector J1. For 4-wire installation, leave jumpers
JP1 and JP2 on. For 6-wire load cell connections on
dual-channel A/D cards, remove jumpers JP3 and JP4
for connections to J2.
Installation 9
2.3.3 Serial Communications
The four communications ports on the 920i CPU
board support full duplex RS-232, 20 mA output, or
RS-485 communications at up to 115200 bps.
To attach serial communications cables,
route the
cable through the cord grip and ground the shield wire
as described in Section 2.3.1 on page 8. Remove the
serial connector from the CPU
board and wire to the
connector. Once cables are attached, plug the
connector into the header on the board. Use cable ties
to secure serial cables to the inside of the enclosure.
Table 2-2 shows the pin assignments for Ports 1, 3,
and 4. Port 2 provides DIN-8 and
DB-9 connectors for
remote keyboard attachment of PS/2-type personal
computer keyboards (see Figure 2-3; see Section 1.4
on page 4 for Contrast information). The DB-9
connector pin assignments for Port 2 are shown in
Ta ble 2-3; see Section 10.3 on page 11 0 for
information about the PS/2 keyb
Connector Pin Signal Port
J11
J9
J10
Table 2-2. Serial Port Pin Assignments
1 GND
2 RS-232 RxD
3 RS-232 TxD
1 GND / –20mA OUT
2 RS-232 RxD
3 RS-232 TxD
4 +20mA OUT
1 GND / –20mA OUT
2 RS-232 RxD
3 RS-232 TxD
4 +20mA OUT
5 RS-485 A
6 RS-485 B
oard interface.
1
3
4
Serial ports are configured using the SERIAL menu.
See Section 3.2.2 on page 37 for configuration
information.
An optional dual-channel serial communi
cations
expansion card, PN 67604, is also available. Each
serial expansion card provides two additional serial
ports, including one port that supports RS-485
communications. Both ports on the expansion card
can support RS-232 or 20mA connections.
DIN-8 Connector for
PS/2 Remote Keyboard
1
LCD Contrast
DB-9 Connector
for Port 2 / J8
Figure 2-3. Interface Board Connections
DB-9 Pin Signal
2 TxD
3 RxD
5 GND
7 CTS
8 RTS
Table 2-3. DB-9 Connector Pin Assignments
J4
Optional
Keyboard Connector
LCD
Contrast
VR1
J1
DIN-8
Connector
1
J2
DB-9 Connector
CLK
PWR
RET
DAT
to CPU Board / J8
Ribbon Cable Connector
Figure 2-4. Interface Board, Top View
J4 Pin Color Signal
1 Brown Clock
2 Clear +5v
3 Ye ll ow GND
4 Red Data
Table 2-4. J4 (Optional Keyboard Connector)
n Assignments
Pi
J3
Setup
Switch
PB1
10 920i Installation Manual
J11
PORT 1
J9
PORT 3
J10
PORT 4
J2
PIEZO
BUZZER
OPTION
J13
+6VDC
GND
GND
–6VDC
EXPANSION BUS
GND
RS-232 RxD
RS-232 TxD
GND / –20mA OUT
RS-232 RxD
RS-232 TxD
+20mA OUT
RS-232 RxD
RS-232 TxD
+20mA OUT
RS-485 TxD +
RS-485 TxD −
+5VDC
GND
DIO1
DIO2
DIO3
DIO4
INTERFACE
BOARD
CONNECTION
POWER
SUPPLY
SW1
SW2
JP3
1
1
1
J5
J6
J7
DIGITAL I/O
J8
PORT 2
OPTION CARD
CONNECTOR
OPTION CARD
CONNECTOR
OPTION CARD LOCATIONS
J1
1
BATTERY
J15
BOOT
MODE
SLOT 1
SLOT 2
GND / –20mA OUT
REMOTE
SETUP
SWITCH
Figure 2-5. 920i Rev G CPU Board
Installation 11
Figure 2-6. 920i Rev H CPU Board
2.3.4 Digital I/O
Digital inputs can be set to provide many indicator
functions, including all keypad functions. Digital
inputs are active low (0 VDC), inactive high (5 VDC).
Digital outputs are typically used to control relays that
rive other equipment. Outputs are designed to sink,
d
rather than source, switching current. Each output is a
normally open collector circuit, capable of sinking 24
mA when active. Digital outputs are wired to switch
relays when the digital output is active (low, 0 VDC)
with reference to a 5 VDC supply.
12 920i Installation Manual
J2 Pin J2 Signal
1 +5 VDC
2 GND
3 DIO 1
4 DIO 2
5 DIO 3
6 DIO 4
7 DIO 5
8 DIO 6
Table 2-5. J2 Pin Assignments (Digital I/O)
Digital inputs and outputs are configured using the
DIG I/O menu. See Section 3.2.6 on page 50 for
configuration information.
An optional 24-channel digital I/O expansion card,
7601, is available for applications requiring more
PN 6
digital I/O channels.
NOTE: Digital I/O points can be configured to count
active pulse inputs by setting them to PROGIN
(DIGIN menu) and using the
iRite DigInSsBbActivate
handler with a timer to turn the handler on and off.
However, the fastest pulse rate that can be counted
using a digital input is 10Hz (10 pulses per second).
More demanding applications can use the pulse input
option card (PN 67603) to count pulses in the
4–4000Hz range.
J5
J6
2.4 Installing Option Cards
Each option card is shipped with installation
instructions specific to that card. The general
procedure for all option cards is as follows:
Option cards are not hot-pluggable.
Disconnect power to the
installing option cards.
1. Disconnect power to the indicator. Remove
backplate as described in Section 2.2 on page 8.
2. Carefully align the large option card connector
with
connector J5 or J6 on the CPU board (see
Figure 2-7). Press down to seat the option card
in the CPU board connector.
3. Use the screws provided in the option kit to
secure the other end
of the option card to the
threaded standoffs on the CPU board (see
Figure 2-7).
4. Make connections to the
option card as required.
Use cable ties to secure loose cables inside the
enclosure as shown in Figure 2-8. When
installation is complete, reassemble the
enclosure as described
in Section 2.6 on
page 15.
920i before
Figure 2-7. Installing Option Card Onto CPU Board
CT
INDICATES
OPTION CARD
CABLE TIES
CT
CT
PULSE INPUT
CARD
Figure 2-8. Installed Option Cards, Showing Secured
CT
DUAL A/D
CARD
Cables
Memory Card
CT
The 920i automatically recognizes all installed option
cards when the unit is powered on. No
hardware-specific configuration is required to identify
the newly-installed card to the system.
Installation 13
2.5 Expansion Board Configurations
SLOT 1 SLOT 2
CPU BOARD
1
SLOT 3SLOT 4
SLOT 0
SLOT 1 SLOT 2
SLOT 3SLOT 4 SLOT 5
SLOT 6 SLOT 7 SLOT 8
CPU BOARD
SLOT 0
1
SLOT 9 SLOT 10
SLOT 1 SLOT 2
SLOT 3SLOT 4 SLOT 5
SLOT 6 SLOT 7 SLOT 8
SLOT 9 SLOT 10 SLOT 11
SLOT 12 SLOT 13SLOT 14
CPU BOARD
SLOT 0
Two- and six-card expansion boards allow up to
fourteen option cards to be attached to the
Figures 2-9 through 2-11 show the slot numbers
assigned for various combinations of two- and
six-card
expansion boards. A single six-card
expansion board is assigned slots 3–8.
Figure 2-9. CPU Board with Two-Card Expansion Board
920i.
Figure 2-10. CPU Board with Two- and Six-Card
14 920i Installation Manual
Expansion Boards
Figure 2-11. CPU Board with Two Six-Card Expansion
Boards
NOTES:
• The maximum number of option board slots is
fourteen: two onboard slots, plus two six-card
expansion boards.
• The two-card expansion board is always
placed at the end of the expansion bus. No
more than
one two-card expansion board can
be used in any system configuration.
• The panel mount enclosure can accommodate
a single
two-card expansion board.
• The wall mount enclosure can accommodate a
two-card and/or a six-ca
rd expansion board.
• Systems using two six-card expansion boards
are
housed in a custom enclosure.
SLOT 1 SLOT 2
CPU BOARD
1
SLOT 3SLOT 4
SLOT 0
PORT
1
PORT
2
PORT3PORT
4
PORTS
5–6
PORTS
7–8
PORTS
9–10
PORTS
11–12
Expansion Board Serial Port Assignments
Serial port numbers are reserved for each option card
slot, regardless of the type of cards actually installed.
T wo port numbers are reserved for each slot that could
contain a dual-channel serial expansion card.
Table 2-6 shows the port numbers assigned to each
slot.
Table 2-6. Expansion Board Serial Port Assignments
For example, in a system with a two-card expansion
board, port assignments are reserved as shown in
Figure 2-12. If the only serial card installed in this
system is in SLOT 4 of the expansion board, the
system consists of serial ports 1–4 (on the CPU board)
and ports 11–12.
Figure 2-12. Serial Port Assignments, T wo-Car d Expansion
Slot Number Serial Port Assignments
CPU board 1–4
15–6
27–8
3 9–10
4 11–12
5 13–14
6 15–16
7 17–18
8 19–20
9 21–22
10 23–24
11 25–26
12 27–28
13 29–30
14 31–32
Board
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 2-13 to prevent
distorting the backplate gasket. Torque screws to 15
in-lb (1.7 N-m).
16 12
14
5
3
1
17
Figure 2-13. 920i Enclosure Backplate
Torque backplate screws
to 15 in-lb (1.7 N-m)
9
8
7
10
11
18
13
6
2
4
15
Torqued screws may become less tight as the gasket is
compressed during torque pattern, therefore a second
torque is required using the same pattern and torque
value.
2.7 CPU Board Removal
If you must remove the 920i CPU board, use the
following procedure:
1. Disconnect power to the indicator. Remove
backplate as described in Section 2.2 on
page 8.
2. Unplug connectors J9, J10, and J11 (serial
communications), J2 (digital I/O), P1 (power
supply), and connectors to any installed
option cards.
3. Remove any installed option cards.
4. Remove the five phillips head screws and two
kep nuts from the CPU board.
5. Gently lift up the CPU board, then disconnect
connectors J12 (power to display), J4 (ribbon
cable, J3 (keypad connector), then the cable
J8 (Port 2 serial port).
6. Remove CPU board from the enclosure. If
necessary, cut cable ties to shift cables out of
the way.
To replace the CPU board, reverse the above
procedure. Be sure to reinstall cable ties to secure all
cables inside the indicator enclosure.
Installation 15
2.8 Fuse Replacement
T orque fuse and interface board access covers to
8 in-lb (0.90 N-m)
Fuses
F1 & F2
Interface Board
Fuses for the universal and deep enclosure models of
920i are located under a cover plate on the outside
the
of the enclosure. Remove the cover plate, replace the
fuses, and reinstall the cover plate (see Figure 2-14).
To protect against the risk of fire, replace
fuses only with same type and rating fuse.
See Section 10.14 on page 127 for
complete fuse specifications.
Interface board and fuse access cover
plates must be in place for use in NEMA
4X/IP
66 applications.
l
Figure 2-14. Interface Board and Fuse Locations,
Universal Model
2.9 Battery Replacement
The lithium battery on the CPU board maintains the
real-time clock and protects data stored in the system
RAM when the indicator is not connected to AC
power.
Data protected by the CPU board
time and date, truck and tare memory, onboard
database information, and setpoint configuration.
iRev 4 to store a copy of the indicator
Use
configuration on a PC before attempting battery
replacement. If any data is lost, the indicator
configuration can be restored from the PC.
NOTE: Memory option card data is also protected by a
lithium battery. All database information stored on a memory
card is lost if the memory card battery fails.
Watch for the low battery warning on the LCD display
and periodically check the battery voltage on both the
CPU board and on any installed memory option cards.
Batteries should be replaced when the indicator low
battery warning comes on, or when battery voltage
falls to 2.2 VDC. Life expectancy of the battery is ten
years.
battery includes
Removal (Applies to Rev H Board)
Place the tip of your finger in the notched area near
the battery retaining spring and slide the battery out of
position on the CPU board.
Figure 2-15. Battery Removal
Replacement
Before replacing the battery, place the indicator in
setup mode, then press
SAVE/EXIT to save
battery-backed memory (NVRAM) to flash. This
operation saves the latest configuration information,
including setpoint values, stored strings and data, and
the onboard database, to flash memory.
Return to weigh mode, power off the indicator, and
e the battery. Use care not to bend the battery
replac
retaining spring.
When power is restored, a message is shown stating
t battery-backed memory is corrupt. Press
tha
ENTER
to restore the values saved in flash memory.
See Figure 2-6 on page 12 for CPU board battery
location and orientation (positive side up).
Danger of explosion if battery is
incorrectly replaced. Replace only with
t
he same or equivalent type
recommended by the manufacturer. Dispose of unused
batteries according to the manufacturer’s instructions.
16 920i Installation Manual
2.10 Parts Kit Contents
Table 2-7 lists the parts kit contents for the universal model of the 920i.
PN Description
14626 Kep nuts, 8-32NC (4)
14862 Machine screws, 8-32NC x 3/8 (12)
45042 Sealing washers (14)
15133 Lock washers, No. 8, Type A (4)
30623 Machine screws, 8-32NC x 7/16 (2)
15631 Cable ties (4–single A/D, 6–dual A/D)
15665 Reducing glands for 1/2 NPT cord grips (2)
15887 6-position screw terminal for
19538 Cord grip plugs (4–single A/D, 3–dual A/D)
42350 Capacity label (1–single A/D, 2–dual A/D)
53075 Cable shield ground clamps (4)
70599 6-position screw terminal for J2 (1)
77180 8-position screw terminal for J10 (1)
71126 4-position screw terminal for J9 and optional keyboard connection (2)
71125 3-position screw terminal for J11 (1)
42149 Rubber feet for tilt stand (4)
15144 Nylon washers for tilt stan
68403 Wing knobs for tilt stand
load cell connection (1–single A/D, 2–dual A/D)
d, 1/4 x 1 x 1/16 (2, universal model only)
(2)
Table 2-7. Parts Kit Contents
Installation 17
2.11 Replacement Parts and Assembly Drawings
Table 2-8 lists replacement parts for the 920i universal enclosure model, including all parts referenced in Figures
2-16 through 2-18. For assembly drawings and replacement parts information for other enclosures, see the 920i
Panel Mount Installation Instructions, PN 69989 and the 920i Wall Mount Installation Instructions, PN 69988.
Ref Number PN Description (Quantity) See Figure
1 67529 Enclosure, universal (1) 2-16
3 67614 LCD display (1)
4 68425 Fuse access coverplate (1)
5 68621 Fuse access coverplate gasket (1)
6 67886 Standoffs, short (4)
7 68661 Standoffs, long (2)
8 117930 CPU board (1); Board marked as 109549; sold as PN 117930
9 14618 Kep nuts, 4-40NC (2)
10 67613 Power supply, ±6VDC, 25W (1)
— 85791 Replacement power supply fuse (1)
11 67536 Power supply bracket (1)
12 16861 High voltage warning label (1)
13 14624 Lock nuts, 6-32NC, nylon (2)
14 14822 Machine screws, 4-40NC x 1/4 (11)
15 67530 Interface board connector plate (1)
16 67535 Interface board gasket (1)
17 14862 Machine screws, 8-32NC x 3/8 (4)*
18 75062 Sealing washers (12)*
19 32365 Setup switch access screw, 1/4 x 20NC x 1/4 (1)
20 44676 Sealing washer for setup switch access screw (1)
21 15626 Cord grips, PG9 (3)
22 15627 Lock nuts, PCN9 (3)
23 30375 Nylon seal rings for PG9 cord grips (3)
25 15134 Lock washers, No. 8, Type A (3) 2-17
26 14626 Kep nuts, 8-32NC (3)*
27 45043 Ground wire, 4 in w/ No. 8 eye connector (1)
28 68424 Enclosure backplate, universal (1) 2-16
29 67532 Backplate gasket, universal (1) 2-16
30 15631 Cable tie, 3-in nylon (1)* 2-18
31 67795 Power cord assembly, 115 VAC and 230 VAC North American units (1) 2-16
69998 Power cord assembly, 230 VAC European units (1) —
32 67796 Power supply cable assembly, to CPU board (1) 2-17
33 68662 Ribbon cable to interface board, universal (1) 2-17
34 16892 Ground/Earth label (1) 2-17
35 15650 Cable tie mounts, 3/4 in. (4)
40 53308 Model/serial number label (1)
41 68532 Single-channel A/D card (1, can be single- or dual-channel A/D) —
68533 Dual-channel A/D card (1, can be single- or dual-channel A/D) 2-16
18 920i Installation Manual
Table 2-8. Replacement Parts
Ref Number PN Description (Quantity) See Figure
43 71027 Fuses (115 VAC models), 2 A Time-Lag TR5 (2) 2-16
71026 Fuses (230 VAC models), 2 A T
45 67869 Interface board (1) 2-17
46 14832 Machine screws, 4-40NC x 3/8 (2)
47 22086 Machine screws, 6-32NC x 1/4 (8) 2-16
50 15628 Cord grips, 1/2 NPT (2)
52 30376 Nylon seal rings for 1/2 NPT cord grips (2)
53 15630 Lock nuts for 1/2 NPT cord grips (2)
54 70069 3V Lithium coin battery 2-18
55 69898 Nylon spacers (4) 2-16
— 66502 Switch panel membrane (1)
— 87249 Backlight
— 97257 16M SDRAM replacement SIMM (1) Older CPU boards with 4M SDRAM SIMMs
be upgraded to the 16M SDRAM to run Version 3 software or higher.
must
* Additional parts incl
To protect against the risk of fire, replace fuses only with same type and rating fuse.
See Section 10.14 on page 127 for complete fuse spec
uded in parts kit.
ime-Lag TR5 (2)
—
ifications.
Table 2-8. Replacement Parts (Continued)
Installation 19
28
29
C
F
G
BLUE WIRE
BROWN WIRE
9/2X
10
43/2X
11
12
A
18/12X/E
17/4X/B
14/11X/A
41
8
A
6/4X
3
55/4X/L
13/2X
FROM DISPLAY BOARD TO
BOTTOM OF CPU BOARD (J4)
53/2X
31
K
E
4
5
50/2X
52/2X
21/3X
23/3X
47/8X/ K
E
Figure 2-16. 920i Universal Model Assembly
1
7/2X
22/3X
20
19
16
15
20 920i Installation Manual
RED STRIPE
WIRE
FROM LCD DISPLAY
TO CPU BOARD (J12)
45
L
H
46/2X
D
40
TOP
27/F
35/4X/D
34
26/3X/G
32
25/3X/C
A
L
FROM SWITCH MEMBRANE
TO BOTTOM OF CPU BOARD (J3)
33/H
Figure 2-17. 920i Universal Model CPU Board and Power Supply Components
D
30
41
44/2X/J
J
A
54
Figure 2-18. 920i Universal Model, Back View with Backplate Removed
Installation 21
3.0 Configuration
To configure the 920i indicator, the indicator must be
placed in setup mode. The setup switch is accessed by
removing the large fillister head screw on the
backplate of the universal and deep enclosures.
Switch position is changed by inserting a screwdriver
into the access hole and pressing the switch.
3.1 Configuration Methods
The 920i indicator can be config ured by using the
front panel keys to navigate through a series of
configuration menus or by sending commands or
configuration data to an indicator serial port.
Configuration using the menus is described in
Section 3.1.3.
Configuration using the serial port can be
complished using either the serial command set
ac
described in Section 9.0 or the
utility.
NOTE: Some configuration parameters, such as those
used to configure the
920i display and widgets, cannot
be accessed through the configuration menus.
provides the most complete and efficient
configuration interface for the
3.1.1 iRev Configuration
The iRev 4 configuration utility provides the preferred
method for configuring the
on a personal computer to set configuration
parameters for the indicator. When
configuration is complete, configuration data is
downloaded to the indicator.
iRev 4 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 indicator with an
identical hardware configuration.
NOTES: If using iQUBE 1, use iRev 3. If using iQUBE2 or no
iQUBE, use iRev 4.
You cannot use iRev 3 to e
4
. iRev must be newer or the same version as the
file being opened.
iRev 4 configuration
iRev 4
920i.
920i indicator. iRev 4 runs
iRev 4
dit a file created in iRev
When the indicator is placed in setup mode, a series of
menus is shown across the top of th
with the words
Scale Configuration. The SCALES menu
e display, along
is highlighted as the first used to configure the
indicator. Detailed descriptions of these menus are
provided in Section 3.2.
When configuration is complete, press the
Exit
softkey to exit setup mode, then replace the setup
Save and
switch access screw.
Figure 3-1. iRev Hardware Configuration Display
To use iRev 4, do the following:
1. Install
iRev 4 on an IBM-compatible personal
computer. See Section 5.0 on page 59 for
detailed hardware and software requirements.
2. With both indicator and PC powered off,
connect the PC serial port to the
RS-232 pins
on the indicator serial port.
3. Power up the PC and the indicator. Use the
switch to place the indicator in setup
setup
mode.
4. Start the
iRev 4 provides online help for each of its configuration
iRev 4 program.
displays. Parameter descriptions provided in this
manual for front panel configuration can also be used
when configuring the indicator using
iRev 4: The
interface is different, but the parameters set are the
same.
See Section 5.0 on page 59 for more information about
iRev 4 to configure the 920i.
using
22 920i Installation Manual
3.1.2 Serial Command Configuration
The serial command set can be used to configure the
920i indicator using either a personal computer,
terminal, or remote keyboard. Like
iRev 4, serial
command configuration sends commands to the
indicator serial port; unlike
iRev 4, serial commands
can be sent using any external device capable of
sending ASCII characters over a serial connection.
Serial commands duplicate the functions available
using the indicator front panel and provide some
functions not otherwise available. Serial commands
can be used to simulate pressing front panel keys, to
configure the indicator, or to dump lists of parameter
settings. See Section 9.0 on page 89 for more
information about using the serial command set.
3.1.3 Front Panel Configuration
Use the CONFIG submenu under the SCALES menu
to configure A/D scales. For example, in an indicator
with a single-channel A/D card installed in Slot 1, the
Scale Configuration display will show the A/D listed
Slot 1 Channel 1) under the AVAILABLE A/D’s column.
(
Use the
press the center softkey,
left navigation key to select the A/D, then
Add. The A/D is then moved
to the Associated A/D’s column. If no other A/D’s are
listed in the
softkey changes to
Done to exit the Scale Configuration display.
Press
AVAILABLE A/D’s column, the center
Done, as shown in Figure 3-2.
See Section 10.4 on page 111 for information about
configuring serial scales.
Figure 3-2. Scale Configuration Display
3.1.4 Multi-Range and Multi-Interval Scales
The 920i supports multi-range and multi-interval
scales of either two or three ranges or intervals.
Multi-range scales provide two or three ranges, each
extending from zero to the maximum capacity
specified for the range, that can specify different scale
intervals (graduations). The scale interval changes as
the applied weight increases but does not reset to
lower range intervals until the scale returns to zero.
Multi-interval scales divide the scale into two or three
partial weighing ranges, each with different scale
intervals. The scale interval changes with both
increasing and decreasing loads applied.
To configure a multi-range or multi-interval scale, use
the SPLIT parameter to select 2RNG or 3RNG (for
multi-range scales), or 2INTVL or 3INTVL (for
multi-interval scales). Selecting a SPLIT value other
than OFF allows specification of decimal point,
display divisions, and maximum capacity for each
range or interval.
The SPLIT parameter is used to enable multi-range or
multi-interval. The SPLIT parameter is in the
SCALES menu, see Figure 3-4, and Table 3-2. After
setting the SPLIT parameter, the
Format menu
selection will change as shown in Figure 3-6, and
Table 3-4.
If using streaming with multi-range or multi-interval,
the stream must be set to Custom in
iRev 4. The
Tokens for Secondary and Tertiary Units must be set
to L or K to match the Primary, refer to the Serial
Menu, Tokens Parameter, in Section 3.2.2 on page 37.
They can be set using
iRev 4 or through the front
panel.
In multi-range, each range has its own capacity and
display division, extending from zero. The scale
display division will increase at the entered range
capacities, either two or three ranges. Once the range
has increased to the next level, the display division
will remain in new range until the scale returns to
zero. The tare value can be taken in any range.
For example,
Range 1 is 0 - 3000 x 1 lb.
Range 2 is 0 - 10,000 x 5 lb.
In multi-interval, the scale has one capacity, which is
segmented into weighing intervals, either two or three
intervals, each with different display division sizes.
As the weight value exceeds an interval or set interval,
the display division will increase, as the weight falls
below an interval or set interval, the display division
will decrease. The tare can only be taken in the first
interval.
For example,
Range 1 is 0-30 x 0.01 lb.
Range 2 is 30 - 60 x 0.02 lbs.
Configuration 23
3.1.5 Total Scale Configuration
The output of two or more A/D scales or iQUBE2
systems can be configured to function as a total scale.
Once configured and calibrated, the total scale can be
used as a source for other system functions, including
streaming, setpoints, print formatting, and analog
output.
To set up a total scale from the indicator front panel,
use the scale configuration display (see
Figure 3-2) to
select the A/D scales or iQUBE2 systems to configure
as a total scale. (Use the
available A/D scales or
Change Type softkey to show
iQUBE
2
systems; use the right
navigation key to select the total scale sources.) In
iRev 4, assign the total scale to an unused position then
select source scales from the existing A/D scales or
iQUBE
2
systems.
The FORMAT configuration of the total scale (see
Figure 3-5 on page 30) should match that of the
source scales. However, the value specified for the
total scale GRADS parameter should be specified as
the sum of the GRADS values for the source scales.
For example: if SCALE 1 is set to GRADS=10000,
SCALE 2 to GRADS=5000, SCALE 3 (the total
scale) should be set to 15000 grads.
The total scale will show an over-range indication if
the maximum capacity of any source scale is
exceeded, and show dashes if any source scale reads a
negative value. Source scales will respond to Tare and
Zero operations performed on the total scale.
24 920i Installation Manual
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