Rice Lake 420 User Manual

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Page 1

420 Plus

HMI Digital Weight Indicator

Version 1.15

Installation Manual

85127 Rev A

Page 2

Page 3

Technical training seminars are available through Rice Lake Weighing Systems.

Course descriptions and dates can be viewed at www.ricelake.com/training

or obtained by calling 715-234-9171 and asking for the training department.

About This Manual ................................................................................................................................... 1

Safety ........................................................................................................................................... 1

1.0 Introduction.................................................................................................................................. 2

1.1 Operating Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

1.2 Front Panel Keypad . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

1.3 LED Annunciators. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

1.4 Indicator Operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

1.4.1 Toggle Gross/Net Mode/Piece Count . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

1.4.2 Toggle Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

1.4.3 Zero Scale. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

1.4.4 Acquire Tare . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

1.4.5 Enter Tare (Keyed Tare). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

1.4.6 Remove Stored Tare Value . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

1.4.7 Acquire Parts Sample . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

1.4.8 Display Part Weight. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

1.4.9 Display Accumulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

1.4.10 Display or Change Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

1.4.11 Display or Change Setpoint Value . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

1.4.12 Turn Setpoint On or Off. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

1.4.13 Print Ticket . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

1.4.14 Enter New ID. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

2.0 Installation ................................................................................................................................... 6

2.1 Unpacking and Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

2.2 Enclosure Disassembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

2.3 Cable Connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

2.3.1 Cable Grounding. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

2.3.2 Bypass Power Button . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

2.3.3 DC Power Wiring Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

2.3.4 Load Cells. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

2.3.5 Serial Communications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

2.3.6 Digital I/O . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

2.3.7 Analog Output. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

2.4 Analog Output Module Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

2.5 Enclosure Reassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

2.6 Board Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

2.7 Replacement Parts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

3.0 Configuration ............................................................................................................................. 15

3.1 Configuration Methods . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

3.1.1 Revolution Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

3.1.2 EDP Command Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

3.1.3 Front Panel Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

3.2 Menu Structures and Parameter Descriptions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

3.2.1 Configuration Menu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

3.2.2 Format Menu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

3.2.3 Calibration Menu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

3.2.4 Serial Menu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Specifications subject to change without notice.

Rice Lake Weighing Systems is an ISO 9001 registered company.

Version 1.15, December 2012

Page 4

Rice Lake continually offers web-based video training on a growing selection

of product-related topics at no cost. Visit www.ricelake.com/webinars.

3.2.5 Program Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

3.2.6 Print Format Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

3.2.7 Setpoint Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

3.2.8 Digital Input Menu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

3.2.9 Analog Output Menu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

3.2.10 Version Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

4.0 Calibration ................................................................................................................................. 30

4.1 Front Panel Calibration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

4.2 EDP Command Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

4.3 Revolution Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

4.4 More About Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

4.4.1 Adjusting Final Calibration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

4.4.2 Zero Deadload A/D Counts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

5.0 EDP Commands.......................................................................................................................... 33

5.1 The EDP Command Set . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

5.1.1 Key Press Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

5.1.2 Reporting Commands. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

5.1.3 The RESETCONFIGURATION Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

5.1.4 Parameter Setting Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

5.1.5 Soft Reset. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

5.1.6 Normal Mode Commands. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

5.2 Saving and Transferring Data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

5.2.1 Saving Indicator Data to a Personal Computer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

5.2.2 Downloading Configuration Data from PC to Indicator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

6.0 Print Formatting ......................................................................................................................... 39

6.1 Print Formatting Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

6.2 Customizing Print Formats. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

6.2.1 Using the EDP Port. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

6.2.2 Using the Front Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

6.2.3 Using Revolution. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

7.0 Appendix .................................................................................................................................... 42

7.1 Error Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

7.1.1 Displayed Error Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

7.1.2 Using the XE EDP Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

7.2 Status Messages. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

7.2.1 Using the P EDP Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

7.2.2 Using the ZZ EDP Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

7.3 Continuous Output (Stream) Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

7.4 ASCII Character Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

7.5 Front Panel Display Characters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

7.6 Conversion Factors for Secondary Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

7.7 Digital Filtering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

7.7.1 DIGFLx Parameters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

7.7.2 DFSENS and DFTHRH Parameters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

7.7.3 Setting the Digital Filter Parameters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

7.8 Analog Output Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

7.9 Test Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

7.10 Regulatory Mode Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

7.11 LED Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

7.12 Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

420 Plus Limited Warranty .................................................................................................................... 54

ii 420 Plus Installation Manual

Page 5

About This Manual

WARNING

Important

CAUTION

WARNING

This manual is intended for use by service technicians responsible for installing and servicing

420 Plus HMI

digital weight indicators. This manual applies to indicators using Version 1.14 of the

420 Plus software.

Configuration and calibration of the indicator can be accomp

EDP command set, or the

lished using the indicator front panel keys, the

Revolution

configuration utility. See Section 3.1 on page 15 for information about configuration methods.

Safety

Safety Symbol Definitions

Indicates a potentially hazardous situation that, if not avoided, could result in serious injury or death, and includes hazards that are exposed when guards are removed.

Indicates a potentially hazardous situation that, if not avoided may result in minor or moderate injury.

Indicates information about procedures that, if not observed, could corruption to and loss of data.

Safety Precautions

Do not operate or work on this equipment unless you have read and understand the instructions and warnings in this Manual. Failure to follow the instructions o death. Contact any Rice Lake Weighing Systems dealer for replacement manuals. Proper care is your responsibility.

Some procedures described in this m are to be performed by qualified service personnel only.

anual require work inside the indicator enclosure. These procedures

This manual can be viewed from the Rice Lake Weighing Systems distributor site at

www.ricelake.com.

The Operator Car basic operating instructions for users of the

d included with this manual provides

420 Plus.

Please leave the Operator Card with the indicator when installation and configuration are complete.

result in damage to equipment or

r heed the warnings could result in injury or

General Safety

Failure to heed may result in serious injury or death. DO NOT allow minors (children) or inexper DO NOT operate without all shields and guards in place. DO NOT step on the unit. DO NOT jump up and down on the scale. DO NOT use for purposes other than weight taking. DO NOT place fingers into slots or possible pinch points. DO NOT use any load-bearing component that is wo DO NOT use this product if any of the DO NOT exceed the rated load limit of the unit. DO NOT make alterations or modifications to the unit. DO NOT remove or obscure warning labels. DO NOT use near water. Before opening the unit, ensure the power cord Keep hands, feet and loose clothing away from moving parts.

ienced persons to operate this unit.

rn beyond 5% of the original dimension.

components are cracked.

is disconnected from the outlet.

420 Plus Installation Manual - Safety 1

Page 6

1.0 Introduction

The 420 Plus is a single-channel digital weight indicator housed in a NEMA 4X/IP66-rated stainless steel enclosure. The indicator front panel consists of a large (.8 in, 20 mm), six-digit, seven-segment LED display and twenty-one-button keypad. Features include:

• Drives up to eight 350or sixteen 700 load

cells

• Supports 4- and 6-wire load cell connections

• Two configurable digital inputs

• Two configurable digital outputs

• Electronic data processing (EDP) port for full duplex, RS-232 communications at up to 38400 bps

• Printer port for output-only RS-232 or 20 mA current loop communications at up to 38400 bps

• Optional analog output module provides 0–10 VDC or 0–20/4–20 mA tracking of gross or net weight values

• Available in 115 VAC and 230 VAC versions

• Available in DC power version

The 420 Plus is NTEP-certified and pending Measurement Canada approval for Classes III, III HD, and III L at 10,000 divisions. See

Section 7.12 on

page 53 for detailed specifications.

1.1 Operating Modes

The 420 Plus has four modes of operation:

Normal (Primary) mode

Normal mode is the “default” mode of the indicator. The indicator displays gross or net weights as required, using the LED annunciators described in status and the type of weight value displayed. Once configuration is complete and a legal seal is affixed to the back of the indicator, this is the primary mode in which the

Piece Count (Secondary) Mode

In piece count mode, the indicator display shows the number of parts on the scale rather than the weight of those parts. Piece count mode has two submodes:

• Count display mode displays the current parts count and allows ticket printing using the CFMT print format.

• Sample acquisition mode is used to calibrate the indicator for parts counting.

Operator access to piece count mode is disabled when the indicator is shipped from the factory.

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 bottom of 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 the word

Section 1.3 on page 3 to indicate scale

420 Plus can operate.

CONFIG.

2 420 Plus Installation Manual

Test mode

Test mode provides a number of diagnostic functions for the

420 Plus indicator. Like setup

mode, test mode is entered using the setup switch.

Section 7.9 on page 51 for more information

See about entering and using test mode.

Page 7

1.2 Front Panel Keypad

Count

Gross

Net

DISPLAY

TARE

SETPOINT TIME/DATE

POWER

I/O

3 4 5

7 8 9 0 6

CLR

ZERO GROSS

NET

TARE

ENTER MODE SAMPLE

UNITS PRINT

Figure 1-1 shows the 420 Plus LED annunciators, keypad, and normal mode key functions.

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 16 for information about using the front panel keys in setup mode.

Figure 1-1. 420 Plus Front Panel, Showing LED Annunciators and Normal Mode Key Functions

1.3 LED Annunciators

The 420 Plus display uses a set of eight LED annunciators to provide additional information about the value being displayed:

Gross and Net annunciators are lit to show

• whether the displayed weight is a gross or net weight.

): Gross weight is within

): Scale is at standstill or

• Center of zero (

0.25 graduations of zero. This annunciator lights whe

• Standstill ( within the specified motion band. Some operations, including tare functions printing, can only be done when the standstill symbol is shown.

lb and kg annunciators indicate the units

• associated with the displayed value: lb=pounds, kg=kilograms.

n the scale is zeroed.

and

• The displayed units can also be set to short tons (tn

), metric tons (t), ounces (oz), grams

(g), or NONE (no units information displayed).

lb and kg LEDs function as primary and

The secondary units annunciators for some combinations of primary and secondary units. If neither primary nor secondary units are lb or kg the for secondary units.

•The indicator is in piece count mode.

• The Tare Acquired (

lb annunciator is lit for primary units, kg

Count annunciator is lit to show that the

) lights to show that a

tare value was entered.

420 Plus Installation Manual - Introduction 3

Page 8

Table 1-1 shows which annunciators are used for all combinations of configured primary and secondary units. For

Note

example:

• If the primary unit is pounds (lb) and the

kg for secondary units.

units,

• If the primary unit is pounds (lb) and the secondary unit

secondary unit is kilograms (kg), the lb LED is lit for primary

is short tons (tn), the lb LED is lit for primary units, kg for secondary units. There is not an 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 (tn), and

kg is lit for secondary units (lb). Because there is no LED for short tons, the lb and kg LEDs are

secondary unit is pounds (lb), the lb LED is lit for primary units

used as primary and secondary units annunciators.

See Section on page 19 for more information about configuring primary and secondary display units.

Secondary Unit

Primary Unit

lb lb / lb lb / kg lb / oz lb / g lb / kg kg kg / lb kg / kg kg / oz kg / g lb / kg oz oz / lb oz / kg oz / oz oz / g oz / kg

g g / lb g / kg g / oz g / g g / kg

tn lb / kg lb / kg lb / oz lb / g lb / lb lb / kg lb / kg

t lb / kg lb / lb lb / kg

none lb / kg lb / kg lb / lb

Table 1-1. Units Annunciators, Showing Primary / Secondary LEDs Used for All Configurations

lb kg oz g tn t none

1.4 Indicator Operations

Basic 420 Plus operations are summarized below.

1.4.1 Toggle Gross/Net Mode/Piece Count

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.

Gross mode is shown by the mode is shown by the

1.4.2 Toggle Units

Net annunciator.

Gross annunciator; net

Press the UNITS key to switch between primary and secondary units. The appropriate units LED to the right of the display is lit.

1.4.3 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.

1.4.4 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. Net weight is displayed and

the (

) annunciator lights to show the tare

value was entered

1.4.5 Enter Tare (Keyed Tare)

1. Use the numeric keypad to enter the tare value, then press the TARE key.

2. Net weight is displayed and the ( annunciator lights to show the tare value was entered.

1.4.6 Remove Stored Tare Value

1. Remove all weight from the scale and wait for the standstill annunciator (

2. Press the

TAR E key. The ( ) annunciator goes

off, indicating the tare value has been removed.

Indicators with the REGULA parameter set to NONE or NTEP (see Section 3.2.5 on page 23) can clear a stored tare value using the following pr

ocedure:

1. Press DISPLAY TARE to show the stored tare value.

2. Press the

CLEAR key twice to remove the

stored tare.

)

4 420 Plus Installation Manual

Page 9

1.4.7 Acquire Parts Sample

Note

1. Place empty parts container on scale. Wait for the standstill annunciator (

TARE to acquire the tare weight of the

), then press

container.

2. Press

MODE (GROSS/NET) key to enter piece

count mode. Press the

3. Press the

CLEAR key to exit.

SAMPLE (UNITS) key to enter sample

acquisition mode.

The indicator display shows the message where

nnn is the sample quantity to be placed on the

Addnnn,

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

WGT prompt is shown. Use the numeric

keypad to enter the piece weight.

4. Once the sample quantity is

ENTER to calibrate the indicator for counting

on the scale, press

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.

1.4.8 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

1.4.9 Display Accumulator

DISPLAY TARE key

Hold the (MODE) GROSS/NET key for three seconds to display the accumulated value if enabled in configuration.

The accumulated value will be displayed for about 10 seconds.

To clear the accumulator, press the

CLR key

twice while the accumulated value is being displayed.

To set the time, press the

TIME/DATE key twice. Use the

numeric keypad to enter the time in 24-hour format, then press the

1.4.11 Display or Change Setpoint Value

ENTER key.

The time and date is backed up with the battery. If the main power is interrupted, time/ date should not

be lost.

To display a setpoint value, use the numeric keypad to enter the setpoint number, then press the

SETPOINT key.

Or, you can display a setpoint value by pressing the

SETPOINT key a number of times equal to the setpoint

number. For example, to display the value of setpoint 2, press the

The current value will display to enter the new value and press the

SETPOINT key two times.

, use the numeric keypad

ENTER key. This

will bring you back to the TRIP submenu. To exit and save, press the

ZERO ( ) and GROSS/NET ( ) to navigate to the

CONFIG menu. Press

UNITS ( ) and PRINT ( ) keys and

to exit and save. Use Figure 3-11, “Setpoint Menu,” on page 25 to navigate the menus.

1.4.12 Turn Setpoint On or Off

To turn a setpoint on or off at the front panel, press the

SETPOINT key a number of times equal to the setpoint

number (for example, for setpoint number 2 press the

SETPOINT key two times). Press TAR E to exit value

input mode and go left to arrow key to select

ENABLE and use the down

On or Off. At this point if the

setpoint is on, you can turn it off by using the right or left arrow keys.

1.4.13 Print Ticket

1. Wait for standstill annunciator ( ).

2. Press the

PRINT key to send data to the serial

port.

1.4.14 Enter New ID

1. Ensure digital input 1 or digital input 2 is configured for NEWID.

2. Activate the digital input.

3. Once activated, the digital input will

go into ID

mode.

4. Enter the ID using the nume

ric keypad and

press TARE .

1.4.10 Display or Change Time

To display the date, press the TIME/DATE key once;

TIME/DATE a second time to display the time.

press

To set the date, press the numeric keypad to enter the date, then press the

TIME/DATE key once. Use the

ENTER

key. Use the numeric keypad to enter the date in the same format configured for the indicator: MMDDYY, DDMMYY, or YYMMDD.

420 Plus Installation Manual - Introduction 5

Page 10

2.0 Installation

CAUTION

WARNING

Note

Setup Switch Access Screw

Communications Access Cord Grip (Plugged)

Power Cord

Front of Indicator

Backplate

Bottom View

Load Cell Cable Cord Grip (Open)

This section describes procedures for connecting load cells, digital inputs, and serial communications cables to the

420 Plus indicator. Instructions for field

installation of the analog output option and replacement of the CPU board are included, along with assembly drawings and parts lists for the service technician.

• Use a wrist strap to ground yourself and protect components from electrostatic discharge (ESD) when working inside the indicator enclosure.

• This unit uses line fusing which could create an electric shock hazard. inside the indicator must be performed by qualified service personnel only.

• The supply cord serves as the main power disc

onnect for the supplying the indicator must be installed near the unit and be easily accessible

Procedures requiring work

420 Plus. The power outlet

2.1 Unpacking and Assembly

Immediately after unpacking, visually inspect the 420

to ensure all components are included and

Plus

undamaged. The shipping carton should contain the indicator with attached tilt stand, this manual, and a parts kit. If any parts were damaged in shipment, notify Rice Lake Weighing Systems and the shipper immediately.

The parts kit (PN 85219) contains the items listed

low:

• Two, six-position screw terminals (PN 70599) for connector screw terminals (PN 71125) for connectors J2 and J3, and one, four-position screw terminal (PN 71126) for connector J6 (see figure 2-4).

• Two 8-32NC x 7/16 fillister head screws (PN

623).

• Four 8-32NC x 3/8 machine screws (PN

862) for the indicator backplate (see #1 in

14 Figure 2-8 13).

• Six neoprene washers (PN 45042) for ba

ckplate screws included in the parts kit.

• Four rubber bumpers (“feet”) for the tilt stand, (PN 42

149).

• Three reducing glands (PN 15664).

• One capacity label (PN 42350).

• Three each of grounding clamps (PN 53075), external too kep nuts (PN 14626) for cable shield grounding against the enclosure.

s J4 & J1, two, three-position

th lock washers (PN 15133), and

• One SEC C (section cap) and CLC (Concentrated Load) (PN 8

5552) label.

• Annunciator labels (PN 85555), replacement overlay

decals for labeling primary and

secondary units LEDs.

2.2 Enclosure Disassembly

The indicator enclosure must be opened to connect cables for load cells, communications, digital inputs, and analog output.

The 420 Plus has an on/off switch for the load cells and processor functions. Before

disconnected from the power outlet. The power outlet

opening the

must be located near the indicator to allow the operator to easily disconnect power to the unit.

unit, ensure the power cord is

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 420 Plus provides four cord grips for cabling into the indicator: one for the power cord, three to accommodate load cell, communications, digital inputs, and analog output cables. Two of the three free cord grips come with a plug installed to prevent moisture from entering the enclosure. Depending on your application, remove the plug from any cord grip that will be used and install cables as required.

The unit will keep the date and time as long as it is plugged in, Even if display and load cells are turned off. will lose date and time information.

Figure 2-1 shows the recommended assignments for

420 Plus cord grips.

the

Figure 2-1. Recommended Cord Grip Assignments

When the unit is unplugged, it

6 420 Plus Installation Manual

Page 11

2.3.1 Cable Grounding

Insulated cable

Foil (silver side out)

Grounding clamp

Shield wir e (cut)

Length of foil before folding back on cable insulation

Cut insulation here for foil-shielded cables

Braid

Cut insulation here for braided cables

NOTE: Install lockwashers ﬁrst, against backplate, under grounding clamp

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 vided in the parts kit to install grounding

pro 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 grounding

clamps to

determine cable lengths required to reach cable connectors. Mark cables to remove insulation and shield as described below:

• For cables with foil shielding, strip insulation foil from the cable half an inch (15 mm)

and past the grounding clamp (see Figure 2-2). Fold the foil shield back on the ca

ble where the cable passes through the clamp. Ensure silver (conductive) side of foil is turned outward for contact with the grounding clamp.

• For cables with braided shielding, strip cable insulation and

braided shield from a point just 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 2-2).

• For load cell cables, cut the shield wire just ast the grounding clamp. Shield wire function

p is provided by contact between the cable shield and the grounding clamp.

• Route stripped cables th

rough cord grips and clamps. Ensure shields contact grounding clamps as shown in Figure 2-2. Tighten grounding clamp nuts.

• Finish installation using cable mounts and ties cure cables inside of indicator enclosure.

to se

Figure 2-2. Grounding Clamp Attachment for Foil-Shielded

and Braided Cabling

2.3.2 Bypass Power Button

If jumper JMP1 is set for SW position, the power switch on the front panel of the indicator will turn the unit ON or OFF. If it is not in the SW position, the indicator will power up as soon as the AC is applied. This allows the front panel overlay power control switch to be bypassed. Label “F” in Figure 2-3 shows the location of JMP1. Figure 2-4 on page 8 shows entire board.

Figure 2-3. 420 Plus CPU and Power Supply Board JMP1

Shunt Location

420 Plus Installation Manual - Installation 7

Page 12

8 420 Plus Installation Manual

Figure 2-4. 420 Plus CPU and Power Supply Board

Page 13

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8JSF"TTFNCMZ 1/UP+PO $16#PBSE1/

Figure 2-5. 420 Plus DC Power Supply

Note

2.3.3 DC Power Wiring Guidelines

Based on:

• 8 x 350

• Analog output installed

• Digital outputs sourcing 20mA each

• Drawing maximum current at 7.5 VDC from the

DC/DC power supply

DC power wiring to the indicator should be 18 AWG to 14 AWG for DC+, DC-, and earth

round conductors.

In a mobile application, earth ground (chassis) should be terminated to the vehicle chassis.

In longer power cable runs, voltage drop over the

r conductor needs to be considered. See table and

powe formula below to compute voltage drop.

= (2.85A)(x / 1000ft)(length of run in ft.)

DROP

2.85A = maximum current draw from DC/DC power supply

x = Oh

ms from Table 2-1

Wire Gauge

(AWG)

14 15 16 17 18

Impedance

(OHMS/1000ft)



2.252



3.184



4.016



5.064



6.385

Table 2-1. Cable Impedance

Cable

DC voltage supplied to DC/DC power supply should not be less than 9VDC. Using larger gauge wire will result

in less voltage drop.

Example:

100ft run with 18 AWG wire

= (2.85A)(6.385 / 1000ft)(100 ft)

DROP

= 1.82V

DROP

12VDC will drop to 10.18V after 100ft run.

420 Plus Installation Manual - Installation 9

Page 14

2.3.4 Load Cells

Note

To attach cable from a load cell or junction box, remove connector J1 from the board. The connector plugs into a header on the board as shown in Figure 2-4

Using one of the 6-position connectors, provided

in the parts kit, wire the load cell cable from the load cell or junction box to connector J1 on the CPU board (See Figure 2-4 8). If using six-wire load cell cable (with sense wires), remove jumpers JP1 and JP2 before reinstalling co four-wire installation, leave jumpers

nnector J1 (see Figure 2-4). For

JP1 and JP2 on. When connections are complete, reinstall connector J1 onto the header so that it snaps securely into place. Use two cable ties to secure the load cell cable to the inside of the enclosure.

J1 Pin Function

1 2 3 4 5 6

+SIG

–SIG +SENSE –SENSE

+EXC –EXC

Table 2-2. J1 Pin Assignments

Use grounding procedures described in Section 2.3.1 on page 7

For 6-wire connections, remove jumpers JP1 and JP2

For 4-wire connections, leave jumpers JP1 and JP2 on

2.3.5 Serial Communications

Using one of the six-position connectors, provided in the parts kit, wire the serial communications cables to J4. Connector J3 provides connections for the EDP/ RS-232 port. Connect communications cables to connectors J3 and J4 as shown in Table 2-3.

Once cables are attached, reconnec

t J3 and J4 to the headers on the board (see Figure 2-4). Use cable ties to secure serial cables to the inside of the enclosure.

The EDP port supports full duplex RS-232 communications only; the

serial port provides either active 20 mA output or duplex RS-232 transmission. Both ports are configured using the SERIAL menu. See Section 3.0 on page 15 for configuration information.

Port Connector Pin Label

Serial Port J4

TxD

RxD

Gnd

20mA+

20mA–

Gnd

Table 2-3. J3 and J4 Pin Assignments

2.3.6 Digital I/O

Digital inputs can be set to provide several indicator functions, including all keypad functions. The inputs are active (on) with low voltage (0 VDC) and can be driven by TTL or 5V logic without additional hardware. Use the DIG IN menu to configure the digital inputs. LED’s on the CPU board light when digital inputs are active.

Digital outputs are typically used to

control relays that drive other equipment. Outputs are designed to sink not source, switching current. Each output is a normally open connector circuit, capable of sinking 250 mA when active. Digital outputs are wired to switch relays when the digital output is active (low, 0 VDC) with reference to 5 VDC supply. LEDs on the CPU board light when the digital outputs are active.

Port Connector Pin Label

Digital Input J2

Digital Output

Table 2-4. J2 and J6 Pin Assignments

1 DI 1 2 DI 2 3 Gnd 1 Gnd 2 DO 1 3 DO 2 4 +5V

Port Connector Pin Label

EDP/RS-232 J3

Table 2-3. J3 and J4 Pin Assignments

10 420 Plus Installation Manual

TxD

RxD

Gnd

Page 15

2.3.7 Analog Output

Torque Pattern

NTEP - Approval Fastener

If the optional analog output module is installed, attach the output cable to connector J1 on the analog output board. Tab l e 2-5 lists the analog output pin assignments.

Use the ALGOUT menu to configure and calibrate the analog out Section 2.4 for information about installing the

put module when cabling is complete. See

analog

output module.

Pin Signal

1 + Current Out 2 – Current Out 3 + Voltage Out 4 – Voltage Out

Table 2-5. Analog Output Module Pin Assignments

2.4 Analog Output Module Installation

To install or replace the analog output module (PN

85659), follow the steps listed in Section 2.2 on page 6 for opening the

420 Plus enclosure.

Mount the analog output module on its standoffs in the location shown in Figure 2-4 8 and plug the module input into connector J9

on the 420 Plus board. Connect output cable to the analog output module as shown in Table 2-5, then reassemble the enclosure (Section 2.5).

See Figure 7.8 50 for analog output calibration procedures.

2.5 Enclosure Reassembly

Once cabling is complete, position the backplate over the enclosure and reinstall the backplate screws. Use the torque pattern shown in Figure 2-6 to prevent distorting the backplate gasket. Torque screws to 15 in-lb (1.7

N-m).

Figure 2-7. NTEP Sealing

2.6 Board Removal

If you must remove the 420 Plus CPU board, use the following procedure:

1. Disconnect power to the indicator. Remove backplate as describe page 6.

2. Disconnect power supply cable from connector J7 on

the 420 Plus CPU board.

3. Unplug connectors J1 (load cell cable), J2 (digital inputs), J3 (EDP/RS-232), J4 (serial communications), J6 (digital outputs), and J1 & J11 (keypad ribbon cables). If an analog output board is installed, disconnect the analog output cable. See Figure 2-4 8 for connector locations.

4. Remove the five screws from the CPU board, then lift t

he board out of the enclosure.

To replace the CPU board, reverse the above procedure. Be sure to reinstall cable ties to secure all ca

bles inside the indicator enclosure.

d in Section 2.2 on

Figure 2-6. 420 Plus Enclosure Backplate

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.

420 Plus Installation Manual - Installation 11

Page 16

2.7 Replacement Parts

Table 2-6 lists replacement parts for the 420 Plus, including all parts referenced in Figures 2-8 and 2-9.

Ref

Number

1 14862 2 45042 3 84387 4 84388 5 14839 6 85123 7 84386 8 15144

9 68403 10 29635 11 44676 12 42640 13 19538 14 15626 15 30375 16 85202

17 84389 18 76556

20 84397 21 68216 22 85151 23 16892 24 15134 25 45043 27 14626 28 15627 30 85494 32 15376

PN Description (Quantity) Figure

Screws 8-32NC x 3/8 (8) Figure 2-9 14 Sealing washers (8) Backplate (1) backplate gasket (1) Screws 6-32NC x 1/4 (9) CPU and display board assembly (1) Enclosure (1) Nylon washers 1/4x1x1/16 (2) Four-cornered wing knobs for tilt stand (2) Tilt stand (1) Sealing washer (1) Screws 1/4-28NF X 1/4 (2) Cable grip plugs (2) Cable grips (3) Nylon seal rings for cable grips (3) Power cord assembly – 115 VAC

85203

Power cord assembly – 220 VAC Power supply bracket (1) Power supply switch (1)

85554

Power supply, DC/DC converter Overlay panel (1) Figure 2-8 13 Rice Lake nameplate (1) Power supply ribbon cable(1) Earth ground label (1) Lock washer, No 8, Type A (3) Ground wire 4 in, No. 8 (1) Kep nuts, 8-32NC Hex (5) Locknuts (3) Protective cover (1) Figure 2-9 14 Standoffs, male - female (6)

85791

Fuse, 2.5 Amp 5x20mm

12 420 Plus Installation Manual

Table 2-6. Replacement Parts

Page 17

To J7 header on PC Board (6)

From Power Cord (16)

5-pin overlay

8-pin overlay

Ground Wire Detail

To backplate (3)

From power cord (16)

Figure 2-8. 420 Plus Overlay and Power Supply

420 Plus Installation Manual - Installation 13

Page 18

14 420 Plus Installation Manual

Figure 2-9. 420 Plus Enclosure, Backplate and CPU Board

Page 19

3.0 Configuration

To configure the 420 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 bottom. Switch position is changed by inserting a screwdriver or similar tool into the access hole and pressing the setup switch.

When the indicator is placed in setup mode, the word

CONFIG is shown on the display. The CONFIG menu is

the first of ten main menus used to configure the indicator. Detailed descriptions of these menus are given in Section 3.2 on page 17. When configuration is complete, return to the CONF

IG menu and press the (ZERO) key to exit setup mode, then replace the setup switch access screw.

3.1 Configuration Methods

The 420 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. Configuration using the menus is described in Section 3.1.3 on page 16.

Configuration using the EDP port can be accomplished

ing either the EDP command set described in

us Section 5.0 or the

3.1.1 Revolution Configuration

The Revolution configuration utility provides the preferred method for configuring the indicator. Revolution runs on a personal computer to set configuration parameters for the indicator. When

Revolution configuration is complete, configuration

data is downloaded to the indicator.

Revolution® software.

420 Plus

Revolution

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, do the following:

1. Install the

Revolution module on an

IBM-compatible personal computer running

Windows

98 or later. Minimum system requirements are 4MB of extended memory and at least 5MB of available hard disk space.

2. With both indicator and PC powered off, connect

the PC serial port to the indicator EDP

port.

3. Power up the PC and the indicator. Use the setup switch

to place the indicator in setup

mode.

4. Start the

Figure 3-1 shows an example of one of the

Revolution program.

Revolution

configuration displays.

Revolution provides online help for each of its

configuration displays. Parameter descriptions provided in this manual for front panel configuration can also be used when configuring the indicator using

Revolution: the interface is different, but the

parameters set are the same.

3.1.2 EDP Command Configuration

The EDP command set can be used to configure the

420 Plus indicator using a personal computer, terminal,

or remote keyboard. Like

Revolution, EDP command

configuration sends commands to the indicator EDP port; unlike

Revolution, EDP commands can be sent

using any external device capable of sending ASCII characters over a serial connection.

EDP commands duplicate the fu

nctions 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 33 for more information about using the EDP command set.

Figure 3-1. Sample Revolution Configuration Display

420 Plus Installation Manual - Configuration 15

Page 20

3.1.3 Front Panel Configuration

Move UP/

Increrement

VAlue

ENTER value

Move LEFT/

Move RIGHT/

Move DOWN/

Decrement

Value

1st Level

Parameter

Default value

Value

When moving thr ough values below the ﬁrst menu level, press to r etur n to the level above. Press or to move to the next parameter on the level above

1st Level

Parameter

Level

Parameter

Level

Parameter

Value

The 420 Plus indicator can be configured using a series of menus accessed through the indicator front panel when the indicator is in setup mode. Tab le 3-1 summarizes the functions of each of the main menus.

Menu Menu Function

CONFIG Configuration Configure grads, zero tracking, zero range, motion ban

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 30 for calibration procedures. SERIAL Serial Configure EDP and printer serial ports. PROGRM Program Set power-up mode, regulatory mode,

and consecutive number values.

PFORMT Print Format Set print format used for gross and net tickets. See Section 6.0 on page 39 for more

information. SETPNT Setpoint Configure Setpoints and digital outputs. DIG IN Digital Input Assign digital input functions. ALGOUT Analog Output Configure analog output module. Used only if

analog output option is installed.

VERS Version Display installed software version number.

Table 3-1. 420 Plus Menu Summary

d, overload, tare function, sample rate,

Figure 3-2. Front Panel Key Functions in Setup Mode

Four front panel keys are used as directional keys to navigate through the menus in setup mode (see Figure 3-2).

UNITS ( ) and PRINT ( ) keys scroll left and right (horizontally) on the same menu level; ZERO ( ) and

The

GROSS/NET ( ) move up and down (vertically) to different menu levels. The TAR E key ( ) serves as an Enter key

for selecting parameter values within the me

nus. A label above each of these keys identifies the direction provided

by the key when navigating through the setup menus.

Figure 3-3. Setup Mode Menu Navigation

16 420 Plus Installation Manual

Page 21

To select a parameter, press or to scroll left or

When editing numeric values, press or t o change the digit selected. Press or to increment or decrement the value of the selected digit, or use the numeric keypad.

Press to save the value entered and return to the level above.

XXXXXXX XXXXXXX XXXXXXX XXXXXXX

GRADS

10000

number

ZTRKBN ZRANGE

1.900000

MOTBAN

FS+2%

FS+9D

FS+1D

OVRLOA

DIGFL1

number

DIGFL2

DIGFL3

BOTH

PBTARE

NOT ARE

KEYED

T AREFN

ALGOUT DIG IN SETPNT PROGRM PFORMT SERIAL CALIBR CONFIG FORMAT

8OUT

32OUT

16OUT

64OUT

DFSENS DFTHRH

2OUT

128OUT

4OUT

2DD

NONE

5DD

20DD

10DD

50DD

200DD

100DD

250DD

15HZ

60HZ

30HZ

7.5HZ

SMPRAT

VERS

number

right until the desired menu group appears on the displa

y, then press

to move down to the submenu or parameter you want. When moving through the menu parameters, the default or pre

viously selected value

appears first on the display.

To change a parameter value, scroll left or right to view the values appears on the display, press

for that parameter. When the desired value

to select the value and

move back up one level. To edit numerical values, use

e navigation keys to select the digit and to increment

th or decrement the value or use the numeric keypad. (see

Figure 3-4. Editing Procedure for Numeric Values

Figure 3-4).

3.2 Menu Structures and Parameter Descriptions

The following sections provide graphic representations of the 420 Plus menu structures. In the actual menu structure, the settings you choose under each parameter are arranged horizontally. To save page space, menu choices are shown in vertical columns. The factory default setting appears at the top of each column in bold type.

Most menu diagrams are accompanied by a table that describes all parameters with that menu. Default parameter values are shown in bold type.

3.2.1 Configuration Menu

and parameter values associated

Figure 3-5. Configuration Menu

420 Plus Installation Manual - Configuration 17

Page 22

CONFIG Menu

Note

Parameter Choices

Level 2 submenus

GRADS 10000

number

Description

Graduations. Specifies the number the range 1–100 000 and should be consistent with legal requirements and environmental limits on system resolution.

of full scale graduations. The value entered must be in

ZTRKBND 0

number

ZRANGE 1.900000

number

MOTBAND 1

number

OVRLOA FS+2%

FS+1D FS+9D FS

SMPRAT 15HZ

30HZ 60HZ

7.5HZ

DIGFL1 DIGFL2 DIGFL3

DFSENS 8OUT

4 8 16 32 64 1

16OUT 32OUT 64OUT 128OUT 2OUT 4OUT

To calculate GRADS, use the formula, GRADS = Capaci Display divisions for primary and sec

Automatically zeroes the scale when within the within the ZRANGE and scale is at standstill. Specify the zero tracking band in ± display divisions. Maximum legal value varies depending on local regulations.

For scales using linear calibration, do not set the zero tracking band to a value greater than that specified for the first linearization point.

Selects the range within which the scale can be

1.9% around the calibrated zero point, for a total range of 3.8%. Indicator must be at standstill to zero the scale. Use the default value for legal-for-trade applications.

Sets the level, in display divisions, at detected for 1 second or more, the standstill symbol lights. Some operations, including print, tare, and zero, require the scale to be at standstill. Maximum legal value varies depending on local regulations.

If this parameter is set to 0, the standstill annunci operations including zero, print, and tare will be performed regardless of scale motion. If 0 is selected, ZTRKBND must also be set to 0.

Overload. Determines the point at whi message is displayed. Maximum legal value varies depending on local regulations.

Sample rate. Selects measurement rate, in samples per second, of the analogconverter. Lower sample rate values provide greater signal noise immunity.

Digital filtering. Selects the digital filtering rate used vibration from the immediate area of the scale.

Choices indicate the number of A/D displayed reading. A higher number gives a more accurate display by minimizing the effect of a few noisy readings, but slows down the settling rate of the indicator. See Section 7.7 on page 49 for more information on digital filtering.

Digital filter cutout sensitivity. Specifies the numbe outside the filter threshold (DFTHRH parameter) before digital filtering is suspended. If NONE is selected, the filter is always enabled.

ondary units are specified on the FORMAT menu.

which scale motion is detected. If motion is not

ch the display blanks and an out-of-range error

conversions that are averaged to obtain the

ty / Display Divisions.

range specified, as long as the input is

zeroed. The 1.900000 default value is ±

ator will be set continuously on, and

to-digital

to reduce the effects of mechanical

r of consecutive readings that must fall

18 420 Plus Installation Manual

Table 3-2. Configuration Menu Parameters

Page 23

XXXXXXX XXXXXXXXXXXXXXXXXXXXX

DSPDIV MULTUNITSDECPNT

0.453592

number

PRIMAR SECNDR

6SEC

4SEC

3SEC

2.5SEC

2SEC

1.5SEC

750MS

500MS

250MS

8SEC

DSPRAT

DSPDIV UNITSDECPNT

KG888880

888888

88888.8

8888.88

888.888

88.8888

8.88888

888880

888888

88888.8

8888.88

888.888

88.8888

8.88888

NONE

ALGOUTDIGINSETPNTPROGRM PFORMTSERIALCALIBRCONFIG FORMAT

1SEC

VERS

NONE

Only used if UNITS =NONE

CONFIG Menu

Parameter Choices

DFTHRH NONE

2DD 5DD 10DD 20DD 50DD 100DD 200DD 250DD

TAREFN BOTH

NOTARE PBTARE KEYED

3.2.2 Format Menu

Description

Digital filter cutout threshold. Spe

cifies the filter threshold, in display divisions. When a specified number of consecutive scale readings (DFSENS parameter) fall outside of this threshold, digital filtering is suspended. If NONE is selected, the filter is always enabled.

Tare function. Enables or disables push-button and keyed tares. Possible values are: BOTH:Both push-button and keyed tares are enabled

NOTARE:No tare allowed (gr

oss mode only) PBTARE:Push-button tares enabled KEYED:Keyed tare enabled

Table 3-2. Configuration Menu Parameters (Continued)

FORMAT Menu

Parameter Choices Description

Level 2 submenus

PRIMAR DECPNT

DSPDIV UNITS

SECNDR DECPNT

DSPDIV UNITS MULT

Figure 3-6. Format Menu

Specifies the decimal position, display divisions, and Level 3 submenu parameter descriptions.

Specifies the decimal position, display divisions, units, and conversion secondary units. See Level 3 submenu parameter descriptions.

Table 3-3. Format Menu Parameters

420 Plus Installation Manual - Configuration 19

units used for the primary units. See

multiplier used for the

Page 24

Note

FORMAT Menu

Parameter Choices Description

DSPRAT 250MS

500MS 750MS 1SEC

1.5SEC 2SEC

2.5SEC 3SEC 4SEC 6SEC 8SEC

Level 3 submenus

Primary Units (PRIMAR Parameter)

DECPNT 888888

888880

8.88888

88.8888

888.888

8888.88

88888.8

DSPDIV 1D

2D 5D

UNITS LB

KG OZ TN T G NONE

Secondary Units (SECNDR Parameter)

DECPNT 88888.8

888888 888880

8.88888

88.8888

888.888

8888.88

DSPDIV 5D

1D 2D

UNITS KG

OZ TN T G NONE LB

MULT 0.453592

Enter other

ces via

choi keyboard

Display rate. Sets the update rate for displayed values. Values are in milliseconds (MS) or seconds (SEC).

Decimal point location. Specifies t primary unit display. Value should be consistent with local legal requirements.

Display divisions. Selects the minimum di

Specifies primary units for displayed and printed weight. Values are: LB=pound; KG=kilogr

Decimal point location. Determines the location of th secondary unit display.

Display divisions. Selects the val

Specifies secondary units for displayed and pr OZ=ounce; TN=short ton; T=metric ton; G=gram; LB=pound.

Multiplier. Specifies the conversion factor by whi the secondary units. The default is 0.453592, which is the conversion factor for changing pounds to kilograms. See Section 7.6 on page 48 for a list of multipliers.

To toggle between primary and secondary units, press the UNITS

am; OZ=ounce; TN=short ton; T=metric ton; G=gram

ndicators sold outside North America are configured with KG for both

primary and secondary units.

Multipliers are pre-configured within the indicator. Manual entry is only necessary when NONE is selected under UNITS.

he location of the decimal point or dummy zeroes in the

vision size for the primary units displayed weight.

ue of minimum division size of the displayed weight.

Table 3-3. Format Menu Parameters (Continued)

e decimal point or dummy zeros in the

inted weight. Values are: KG=kilogram;

ch the primary units are multiplied to obtain

key.

20 420 Plus Installation Manual

Page 25

3.2.3 Calibration Menu

XXXXXXX XXXXXXX XXXXXXX XXXXXXX

WZERO WV AL WSPAN

WLIN

ALGOUT DIGI N SETPNT PROGRM PFORMT SERIAL CALIBR CONFIG FORMAT

REZERO

VERS

WPT–> 1

WPT–> 2 WPT–> 3 WPT–> 4 WPT–> 5

Same as PT -> 1

*CAL*

Display and edit

span calibration

A/D count value

See Section 4.0 on page 30 for Calibration procedures.

Figure 3-7. Calibration Menu

CALIBR Menu

Parameter Choices Description

Level 2 submenus

WZERO — Display and edit the zero calibration A/D count value.

DO NOT adjust this value after WSPAN has been set!

WVAL — Display and edit the test weight value. WSPAN — Display and edit the span calibration A/D count value. WLIN WPT->1 —

->5

WPT

Press ENTER to display and edit test weight value. Pressing ENTER again will calibrate and display the raw A/D value. Pressing ENTER a third time will move to the next calibration point.

For millivolt calibration, press ENTER to display a again to display and edit the millivolt value for that weight. Press ENTER a third time to calibrate and display the raw A/D value. Press ENTER the fourth time to move to the next point.

REZERO — Press Enter to remove an offset value from the zer

are being used during calibration. Always use this parameter after WZERO and WSP

value. See Section 4.1 on page 30 for more information about using this parameter.

nd edit the test weight value. Press ENTER

Table 3-4. Calibration Menu Parameters

o and span calibrations if hooks or chains

AN have been set to re-capture a new zero

420 Plus Installation Manual - Configuration 21

Page 26

3.2.4 Serial Menu

XXXXXXX XXXXXXXXXXXXXXXXXXXXX

EOLDLY

000000

number

EDP

PRN

EDP

PRNDES

BITS TERMINBAUD

9600

7ODD

7EVEN

8NONE

CR/LF

4800

2400

1200

600

300

Same as EDP

EDP

OFF

STREAM

PRN

ALGOUTDIGINSETPNTPROGRM PFORMTSERIALCALIBRCONFIG FORMAT

ECHO

OFF

VERS

19200

38400

2 STOP

1 STOP

S BITS

BOTH

LFT

INDUST

STRRTE

OFF

PRNMSG

See Section 7.3 on page 44 for information about the 420 Plus serial data format.

Figure 3-8. Serial Menu

SERIAL Menu

Parameter Choices Description

Level 2 submenus

EDP BAUD

BITS TERMIN EOLDLY ECHO

PRINT BAUD

BITS TERMIN EOLDLY ECHO

STREAM OFF

EDP PRN BOTH

STRRTE INDUST

LFT

PRNDES EDP

PRN BOTH

PRNMSG OFF

Level 3 Submenus EDP Port and Printer Port

BAUD 9600

300 600 1200 2400 4800 19200 38400

BITS 8NONE

22 420 Plus Installation Manual

7EVEN 7ODD

Specifies settings for baud rate, data bits, termination used by the EDP port.

Specifies settings for baud rate, data bits, termination used by the printer port.

Selects the serial port used for continuous transmission. Streaming can be set for the EDP port, Printer port, or both ports simultaneously. See Section 7.3 on page 44 for information about the

420 Plus continuous data format.

Specifies stream rate. Stream rate can be set to industrial or legal for trade.

Print destination. Selects the EDP port, printer port, or both ports sim transmission when the PRINT key is pressed or the KPRINT EDP command is sent.

Print message. Default will be OFF. When the print key PRINT is momentarily displayed on the remote display.

Baud rate. Selects the transmission speed for the EDP

Selects number of data bits and parity of data tran

Table 3-5. Serial Menu Parameters

characters, end-of-line delay and echo

ultaneously for data

is pressed and data is sent out, the word

or printer port.

smitted from the EDP or printer port.

Page 27

XXXXXXX XXXXXXX

PWRUPM

OIML

REGULA

000000

number

CONSNU

DELAY

SETPNT PROGRM PFORMT SERIAL CALIBR CONFIG FORMAT

000000

number

CONSTU

NTEP

CANADA

UID

VERS DIGIN ALGOUT

DATFMT

MMDDYY

DATE

DDMMYY

YYMMDD

YYDDMM

DATSEP

SLASH

DASH

SEMI

TIMFMT

12HOUR

TIME

24HOUR

TIMSEP

COLON

COMA

NONE

COUNT

ACCESS

SPLISIZ

ACCUM

ON/OFF

RTZGRD

Note

SERIAL Menu

Parameter Choices Description

S BITS 1 STOP

Stop bits. Sets the number of stop bits to 1 or 2.

2 STOP

TERMIN CR/LF

Termination character. Selects termination character

EOLDLY 000000

number

End-of-line delay. Sets the delay period, in 0.1-second intervals, from when a formatted line is terminated to

the beginning of the next formatted serial output. Value specified must be in the

range 0-255, in tenths of a second (10 = 1 second).

An EOL may be required for continuous transmission at slower baud rates to ensure the receiving buffer is empty before another string is transmitted

ECHO OFF

This command enables or disables echoing of the serial commands sent to the indicator.

Table 3-5. Serial Menu Parameters (Continued)

3.2.5 Program Menu

for data sent from the EDP or printer port.

Figure 3-9. Program Menu

PROGRM Menu

Parameter Choices Description

Level 2 submenus

PWRUPM GO

DELAY

COUNT ACCESS

SPLSIZ

Power up mode. In GO mode, the indicator goes into ope up display test.

In DELAY mode, the indica

tor performs a power up display test, then enters a 30-second warm up period. If no motion is detected during the warm-up period, the indicator becomes operational when the warm up period ends; if motion is detected, the delay timer is reset and the warm up period repeated.

Specifies whether operator has access to piece count mode and the for parts counting. See level three submenu for parameter descriptions.

Table 3-6. Program Menu Parameters

ration immediately after a brief power

default sample size used

420 Plus Installation Manual - Configuration 23

Page 28

PROGRM Menu

Parameter Choices Description

REGULA NTEP

OIML CANADA NONE

CONSNU 000000

number

CONSTU 000000

number

UID 1 Specifies the unit identification number (any numeric value up to six digits). ACCUM ON/OFF

RTZGRD

DATE DATFMT

DATSEP

TIME TIMFMT

TIMSEP

Level 3 submenus

ACCESS DISABLE

ENABLE

SPLSIZ 10

20 50 100 5 PCWGT

ON/OFF ON

OFF

RTZGRD 0

Number

DATFMT MMDDYY

DDMMYY YYMMDD

DATSEP SLASH

DASH SEMI

TIMFMT 24HOUR

12HOUR

TIMSEP COLAN

COMMA

Regulatory mode. Specifies the regulatory agency having jurisdiction over the scale site. OIML, NTEP, and CANADA modes allow a tare to be acquired at any weight greater than zero.

NONE allows tares to be acquired at any weight value. OIML, NTEP, and CANADA modes allow a tare to be cleared only if the gross weight is at no

load. NONE allows tares to be cleared at any weight value. NTEP and OIML modes allow a new tare to be acquired even if a tare is already present. In

CANADA mode, the previous tare must be cleared before a new tare can be acquired. NONE, NTEP and CANADA modes allow the scale to be zeroed in either gross or net mode as

long as the current weight is within the specified ZRANGE. In OIML mode, the scale must be in gross mode before it can be zeroed; pressing the ZERO key in net mode clears the tare.

Consecutive numbering. Allows sequential numbering for print operations. The consecutive number value is incremented following each print operation.

The initial value of this parameter is set to the start up value specified on the CONSTU parameter. Changing either CONSTU or CONSNU immediately resets the consecutive number used for printing.

Consecutive number start up value. Specifies the initial consecutive number (CONSNU) value used when the consecutive number is reset by sending CLRCN digital input.

Turns the accumulator on and off. Stores the count, date and time of last accumulation. Return to zero grads to re-arm the accumulator. Default = 0.

Allows selection of date format and date separator. See Level three parameter for descriptions.

Allows selection of time format and separator. See level three parameter for descriptions.

Operator access to piece count mode. Specify DISABLE if piece count mode will not be used. With access disabled, pressing the GROSS/NET (MODE) key toggles between gross and net modes only.

Sample size. Specify the default size used for counting scale operations. Sample size can be changed in counting mode during sample acquisition.

Turns the accumulator on and off.

This determines the number of grads away from 0 that it has to return to re-arm the accumulator between weighments.

Specifies the format used to display or print the date.

Specifies the date separator character.

Specifies the format used to display or print the time.

Specifies the time separator character.

24 420 Plus Installation Manual

Table 3-6. Program Menu Parameters (Continued)

Page 29

3.2.6 Print Format Menu

XXXXXXX XXXXXXX XXXXXXX XXXXXXX

GFMT

Display ﬁrst 6

characters of format

Same as GFMT

NFMT

ALGOUT DIGIN SETPNT PROGRM PFORMT SERIAL CALIBR CONFIG FORMAT

Display and edit

active character and

ASCII value

Delete active

character

Scroll left in formatting string

Increment ASCII value of active character Decrement ASCII value of active character

Press to insert a space before the active character

VERS

Same as GFMT

CFMT

Scroll right in formatting string

NOTE: To change the active character, use the numeric keypad to enter the new ASCII value and press the ENTER (TARE) key.

GROSS

NET

SETPT1

Same as SETPT1

XXXXXXX XXXXXXX

VERS ALGOUT DIG IN

PROGRM PFORMT SERIAL CALIBR CONFIG FORMAT

XXXXXXX

SETPNT

KIND

number

V ALUE

HIGHER

LOWER

TRIP

number

BNDVAL

INBAND

OUTBAND

number

HYSTER

OFF

ENABLE

OFF

ACCESS

If TRIP = HIGHER/

LOWER

SETPT2

See Section 6.0 for information about custom print formatting.

Figure 3-10. Print Format Menu

3.2.7 Setpoint Menu

Figure 3-11. Setpoint Menu

420 Plus Installation Manual - Configuration 25

Page 30

SETPNT Menu

Parameter Choices Description

Level 2 submenus

SETPT1 SETPT2

Level 3 submenus

ENABLE OFF

KIND GROSS

VALUE number Display and edit the setpoint value TRIP HIGHER

BNDVAL number The band value for either INBAND or OUTBND trip setpoints. BNDVAL is ignored unless trip is

HYSTER number Specifies a band around the setpoint value that must be

ACCESS OFF

ENABLE KIND VALUE TRIP BNDVAL

NET

LOWER INBAND OUTBND

Specify settings for setpoint enable, kind, weight value, setpoint

Turn setpoint ON or OFF.

Specifies the setpoint kind and determines wheth weight.

GROSS or NET setpoint kinds can be used.

Trips the setpoint when the weight outside of the band value. LOWER means the output is active until you reach weight. If trip is HIGHER, the output is active when the setpoint is met or exceeded. INBAND means the output is active if the weight is within the band value. If trip is OUTBND, the output is active when the weight is outside of the band value.

set to IN

off, can trip on. Front panel access to setpoints. Specify OFF if setpoints will not be used. ON enables

operato during weigh mode.

BAND or OUTBND.

r to turn setpoints on/off, change value, or change BANDVAL via front panel entry

is higher or lower than the setpoint value, or is within or

trip, and band value used by the

er function is based on GROSS or NET

exceeded before the setpoint, once

Table 3-7. Setpoint Menu Parameters

26 420 Plus Installation Manual

Page 31

3.2.8 Digital Input Menu

XXXXXXX XXXXXXX XXXXXXX XXXXXXX

DIGIN1

OFF

DIGIN2

ZERO

T ARE

NT/GRS

UNITS

DSPTAR

CLRCN

OFF

ZERO

T ARE

NT/GRS

UNITS

DSPTAR

CLRCN

ALGOUT DIGI N SETPNT PROGRM PFORMT SERIAL CALIBR CONFIG FORMAT

HOLD HOLD

KBDLOC KBDLOC

VERS

CLRTAR CLRTAR

CLRACC CLRACC

ACCUM

NEWID

ACCUM

NEWID

Figure 3-12. Digital Input Menu

DIG IN Menu

Parameter Choices Description

Level 2 submenus

DIGIN1 DIGIN2

OFF

ZERO TAR E NT/GRS UNITS DSPTAR PRINT CLRCN KBDLOC HOLD CLRTAR ACCUM CLRACC NEWID

Specifies the function activated by digital inputs 1 and

• ZERO, NT/GRS (net/gross mode toggle), TARE, functions as the front panel keys.

• DSPTAR displays the current tare value.

• CLRCN resets the consecutive number to the value specified on th (PROGRM menu).

• KBDLOC disables the keypad while the digital input is held low.

• HOLD holds the current display. Releasing this i

• CLRTAR clears the tare.

• ACCUM displays the accumulator.

• CLRACC clears the accumulator.

• NEWID enters the ID number.

Table 3-8. Digital Input Menu Parameters

420 Plus Installation Manual - Configuration 27

UNITS, and PRINT provide the same

e CONSTU parameter

nput clears the running average filter.

Page 32

3.2.9 Analog Output Menu

XXXXXXX XXXXXXX ALGOUT DIGIN SETPNT XXXXXXX PROGRM PFORMT SERIAL CALIBR XXXXXXX CONFIG FORMAT

SOURCE

GROSS

20%

OFFSET

ERRACT

FULLSC

HOLD

000000

number

MIN

10000

number

MAX

TWZERO

NET

TWSPAN

ZEROSC

VERS

MINNEG

OFF

MAXNEG

OFF

The ALGOUT menu is used only if the analog output option is installed. If the analog output option is installed, configure all other indicator functions and calibrate the indicator (see Section 4.0) before configuring the analog output. See Section 7.8 on page 50 for analog output calibration procedures.

Figure 3-13. Analog Output Menu

ALG OUT Menu

Parameter Choices Description

Level 2 submenus

SOURCE GROSS

NET

OFFSET 0%

20%

ERRACT FULLSC

HOLD ZEROSC

MIN 000000

number

MINNEG OFF

MAX 010000

number

MAXNEG OFF

TWZERO — Tweak zero. Adjust the analog output zero calibration

TWSPAN — Tweak span. Adjust the analog outp

Specifies the source tracked by the analog output.

Zero offset. Selects whether the analog output supplies voltage (0–10 V) or curr

ent (4–20 mA)

output. Select 0% for 0–10 V output; select 20% for 4–20 mA output. Error action. Specifies how the analog output responds to system error conditions.

Possible values are:

FULLSC Set to full value (10 V or 20 mA) HOLD: Hold current value ZEROSC: Set to zero value (0 V or 4 mA)

Specifies the minimum weight value tracked by the analog output. Specify a weight value (in primary units) in the range 0–999 999.

Turn ON or OFF.

Specifies the maximum weight value tracked by th

e analog output. Specify a weight value (in

primary units) in the range 0–999 999. Turn ON or OFF.

. Use a multimeter to monitor the analog

output value. Press and hold

or to adjust the output. Press to save the new value.

ut span calibration. Use a multimeter to monitor the analog

output value. Press and hold or to adjust the output. Press to save the new value.

28 420 Plus Installation Manual

Table 3-9. Analog Output Menu Parameters

Page 33

3.2.10 Version Menu

XXXXXXX ALGOUT XXXXXXX XXXXXXX

Software

version

VERS

DIGI N SETPNT PROGRM PFORMT SERIAL CALIBR CONFIG FORMAT

The VERS menu is used to check the software version and reg version installed in the indicator. You can also check the indicator model.

Figure 3-14. Version Menu

420 Plus Installation Manual - Configuration 29

Page 34

4.0 Calibration

XXXXXXX XXXXXXX XXXXXXX XXXXXXX

WZERO WV AL WSPAN

WLIN

ALGOUT DIGI N SETPNT PROGRM PFORMT SERIAL CALIBR CONFIG FORMAT

REZERO

VERS

WPT–> 1

WPT–> 2 WPT–> 3 WPT–> 4 WPT–> 5

Same as PT -> 1

*CAL*

Display and edit

span calibration

A/D count value

The 420 Plus can be calibrated using the front panel, EDP commands, or the Revolution® configuration utility. Each method consists of the following steps:

• Zero calibration

• Entering the test weight value

The following sections describe the

calibration procedure for each of the calibration methods.

• Span calibration

• Optional rezero calibration for test weights u

sing hooks or chains.

4.1 Front Panel Calibration

To calibrate the indicator using the front panel,

1. Place the indicator in setup mode (display reads

CONFIG) and remove all weight from the

scale platform. If your test weights require hooks or chains, place the hooks or chains on the scale for zero calibration.

2. Press Figure 4-1). Press (WZERO).

3. With zero. The indicator displays calibration is in progress. When complete, the A/D count for the zero calibration is displayed.

DO NOT adjust this value after WSPAN has been set! Press

calibration value and go to the next prompt

WVAL).

(

4. With stored calibration weight. Use the procedure shown in Figure 3-4 15 to enter the actual value of the test weights to be used for the span calibration. Press value and go to span calibration (WSPAN).

5. With the scale and press indicator displays progress. When complete, the A/D count for the span calibration is displayed. Press to store the span calibration value and go to the ne

until the display reads CALIBR (see

WZERO displayed, press to calibrate

again to save the zero

WVAL displayed, press to show the

to store the entered WVAL

WSPAN displayed, place test weights on

*CAL* while calibration is in

xt prompt (

REZERO).

Figure 4-1. Calibration (CALIBR) Menu

to go to zero calibration

*CAL* while

to calibrate span. The

again

6. Five-point linearization (using the WLIN parameter) provides increased scale a

ccuracy by calibrating the indicator at up to five additional points between the zero and span calibrations.

Linearization is optional: if you choose not to perform linearization, skip the WLIN parameter; if linearization

values have previously been entered, these values are reset to zero during calibration. To perform linearization, follow the procedure below:

Standard Calibration: With Press

PT-> 1). Place test weights on the scale and

( press

to go to the first linearization point

or ENTER.

Enter the actual test weight va

WLIN displayed,

lue, then press to calibrate. The indicator displays *CAL* while calibration is in progress. When complete, the A/D count for the linear calibration is displayed. Press

again to save the calibration

value and go to the next prompt (PT-> 2). Repeat for up to five linearization points. To

exit the linearization parameters, press

return to WLIN. Millivolt Calibration: If millivolt calibration is

enabled press weight value, press the millivolt value for that weight, press

to display and edit the test

again to display and edit

again to calibrate and display the raw A/D count, press

again to move to the next

calibration point.

30 420 Plus Installation Manual

Page 35

7. The rezero function is used to remove a

Note

calibration offset when hooks or chains are used to hang the test weights.

• If no other apparatus was used to hang the test weights during calibration, remove the test weights and press to return to the CALIBR menu.

• If hooks or chains were used during calibration, re

move these and the test weights

from the scale. With all weight removed, press

to rezero the scale. This function adjusts the

zero and span calibration values. The indicator

lays

disp

*CAL* while the zero and span

calibrations are adjusted. When complete, the adjusted A/D count for the zero calibration is displayed. Press

to save the value, then press

to return to the CALIBR menu.

8. Press press

until the display reads CONFIG, then

to exit setup mode.

4.2 EDP Command Calibration

To calibrate the indicator using EDP commands, the indicator EDP port must be connected to a terminal or personal computer. See Section 2.3.5 on page 10 for EDP port pin assignments; see Section 5.0 on page 33 for more information about using EDP commands.

Once the indicator is connected to

1. Place the indicator in setup mode (display reads

CONFIG) and remove all weight from the

scale platform. If your test weights require hooks or chains, place them on the scale for zero calibration.

2. Send the WZERO EDP command to calibrate

. The indicator displays *CAL* while

zero calibration is in progress.

3. Place test weights on the scale and use the

AL command to enter the test weight value

WV in the following format:

WVAL=nnnnnn<CR>

4. Send the WSPAN EDP command to calibrate span. The indicator displays calibration is in progress.

5. Up to five linearization points can be calibra

ted between the zero and span calibration values. Use the following commands to set and calibrate a single linearization point:

WLIN.V1=nnnnn<CR> WLIN.C1<CR>

the sending device,

*CAL* while

6. To remove an offset value, clear all weight from the sc

ale, including items used to hang test weights, then send the REZERO EDP command. The indicator displays

*CAL* while

the zero and span calibrations are adjusted.

7. Send the KUPARROW EDP command to exit set

up mode.

4.3 Revolution Calibration

To calibrate the indicator using Revolution, the indicator EDP port must be connected to a PC running

Revolution configuration utility.

the

Use the following procedure to calibrate the indicator:

1. Select tools menu.

Revolution uploads calibration data from the

indicator then presents the information in the calibration wizard, as shown in Figure 4-2

Figure 4-2. Revolution Calibration Display

3. Enter the Value of Test Weight to be used for span calibration then click OK.

4. The Zero Calibration dialog box prompts you to remove scale and click

5. When zero calibration is complete, the Span Calibration dialog box prompts you to place test weights on the scale for span calibration. Place tests weights on the scale then click

Calibration Wizard from the Revolution

all weight from the scale. Clear the

OK to begin zero calibration.

If your test weights require hooks or chains, place them on the scale for zero calibration

OK.

The WLIN.V1 command sets the test weight value (nnnnn) for linearization point 1. The WLIN.C1 command calibrates the point. Repeat using the WLIN.Vx and WLIN.Cx commands as required for additional linearization points.

420 Plus Installation Manual - Calibration 31

Page 36

6. When span calibration is complete, a dialog box

Note

asks whether you wish to perform linear calibration. Click

Yes to perform linear

calibration for up to five linearization points, or click No to complete calibration (see step 8).

7. On the Linear Calibration display, select the po

int (1–5) to calibrate, then click

Place test weights on scale then click

Calibrate.

OK.

When prompted, enter the test weight value then press Enter. Repeat for additional linearization points, then click

Exit to return to

the Indicator Calibration display.

8. When calibration is complete, the

New Settings

fields of the Indicator Calibration display are filled in. Click return to the the previous calibration values, click

Settings

Exit to save the new values and

Revolution main menu; to restore

Restore

4.4 More About Calibration

The following topics provide additional information about compensating for environmental factors (Section 4.4.1) and diagnostic information for determining expected zero and span coefficients.

4.4.1 Adjusting Final Calibration

Calibration may be affected by environmental factors including wind, vibration, and angular loading. For example, if the scale is calibrated with 1000 lb, a strain test may determine that at 2000 lb the calibration is 3 lb high. In this case, final calibration can be adjusted by tweaking WVAL to 998.5 lb. This adjustment provides a linear correction of 1.5 lb per 1000 lb.

To adjust the final calibration, return to the prompt and press to show the test weight value. Press

or to adjust calibration up or down. Press to save the value, then press to return to the CALIBR menu.

4.4.2 Zero Deadload A/D Counts

Table 4-1 lists the ideal A/D counts that result from input signals of 0–3.0 mV with zero deadload. Actual values will typical

ly be higher than the values shown in Table 4-1 but the ideal values can be used when calibrating the indicator with

no attached scale.

WVAL

Input Signal (mV) Raw A/D Counts

0.0 mV/V

0.5 mV/V

1.0 mV/V

1.5 mV/V

2.0 mV/V

2.5 mV/V

3.0 mV/V

Table 4-1. Ideal A/D Raw Counts

When Raw A/D Count is displayed, the six most significant digits appear. Scroll left or right to see the full value.

167,840 335,613 503,377 671,143

838,908 1,100,668 1,174,446

32 420 Plus Installation Manual

Page 37

5.0 EDP Commands

The 420 Plus indicator can be controlled by a personal computer or remote keyboard connected to the indicator EDP port. Control is provided by a set of EDP commands that can simulate front panel key press functions, display and change setup parameters, and perform reporting functions. The EDP port provides the capability to print configuration data or to save that data to an attached personal computer. This section describes the EDP command set and procedures for saving and transferring data using the EDP port.

5.1 The EDP Command Set

The EDP command set can be divided into five groups: key press commands, reporting commands, the RESETCONFIGURATION special function command, parameter setting commands, and transmit weight data commands.

When the indicator processes an EDP command, it

sponds with the message

re verifies that the command was received and has been executed. If the command is unrecognized or cannot be executed, the indicator responds with

The following sections list the commands and command syntax use

5.1.1 Key Press Commands

d for each of these groups.

Key press EDP commands (see Table 5-1) simulate pressing the keys on the front panel of the indicator.

st commands can be used in both setup and

Mo weighing mode. Several of the commands serve as “pseudo” keys, providing functions that are not represented by a key on the front panel.

For example, to enter a 15-pound tare weight using EDP commands:

1. Type K1 and press

2. Type K5 and press

3. Type KTARE and press shifts to net mode when the tare is entered.

OK. The OK response

??.

ENTER (or RETURN). ENTER.

ENTER. The display

Command Function

KZERO In weighing mode, press the ZERO key KGROSSNET In weighing mode, press the GROSS/

NET key KGROSS Go to gross mode (pseudo key) KNET Go to net mode (pseudo key) KTARE Press the TARE key KUNITS In weighing mode, pr KPRIM Go to primary units (pseudo key) KSEC Go to secondary units (pseudo key) KPRINT In weighing mode, pr KLEFTARROW In setup mode, move left in the menu KRIGHTARROW In setup mode, move right in the menu KUPARROW In setup mode, move up in the menu KDOWNARROW In setup mode, move down in the menu KEXIT In setup mode, exits to normal mode KCOUNT Go to piece count mode (pseudo key) KTIME Press the TIME/DATE key once KDATE Press the TIME/DATE key twice KDISPTARE Press the DISPLAY TARE key KDISPACCUM Displays accumulator KCLRACCUM Clears accumulator KCLR Press the CLEAR key K0 Press number 0 (zero) K1 Press number 1 K2 Press number 2 K3 Press number 3 K4 Press number 4 K5 Press number 5 K6 Press number 6 K7 Press number 7 K8 Press number 8 K9 Press number 9 KDOT Press the decimal point (.) KENTER Press the ENTER key

ess the UNITS key

ess the PRINT key

Table 5-1. EDP Key Press Commands

420 Plus Installation Manual - EDP Commands 33

Page 38

5.1.2 Reporting Commands

Note

Reporting commands (see Table 5-2) send specific information to the EDP port. These commands can be

sed in both setup mode and normal mode.

Command Function

DUMPALL List all parameter values VERSION

P Write current displayed weight with units

ZZ Write current weight and annunciator

S Write one frame of stream format. See

Table 5-2. EDP Reporting Commands

5.1.3 The RESETCONFIGURATION Command

420 Plus software version

Write

fier. See Section 7.2 on page 43 for

identi more information.

status. See Section 7.2 on page 43 for more information.

Ta bl e 5-12 on page 37 for information about the SX and EX commands.

The RESETCONFIGURATION command can be used to restore all configuration parameters to their default values. Before issuing this command, the indicator must be placed in test mode (press and hold setup switch for approximately three seconds to show TEST menu).

This command is equivalent to

using the DEFLT function on the TEST menu. See Section 7.9 on page 51 for more information about test mode and using the TEST menu.

All load cell calibration settings are lost when the RESETCONFIGURATION command is run.

5.1.4 Parameter Setting Commands

Parameter setting commands allow you to display or change the current value for a particular configuration parameter (Tables 5-3 through 5-11).

Current configuration para

meter settings can be displayed in either setup mode or normal mode using the following syntax:

command<ENTER>

Most parameter values can be changed in setup mode only. Use the following command syntax when changing parameter values:

command=value<ENTER>

where value is a number or a parameter value. Use no spaces before or after the equal (=) sign. If you type an incorrect command or value, the display reads

??.

Changes to the parameters are saved as they are entered but typically do not take effect until you exit setup mode.

For example, to set the motion band parameter

to 5,

type the following:

MOTBAND=5D<ENTER>

To view choices, type the following:

MOTBAND=?<ENTER>

5.1.5 Soft Reset

The command RS will reset the indicator without losing configuration and calibration. It does reset consecutive number and count mode.

Command Description Values

GRADS Graduations 1–100 000 ZTRKBND Zero track band OFF, 0.5D, 1D, 3D ZRANGE Zero range 1.9%, 100% MOTBAND Motion band 1D, 2D, 3D, 5D, 10D, 20D, OFF OVRLOAD Overload FS+2%, FS+1D, FS+9D, FS SMPRAT Sample rate 15HZ, 30HZ, 60HZ, 7.5HZ DIGFLTR1

DIGFLTR2 DIGFLTR3

DFSENS Digital filter cutout sensitivity 2OUT, 4OUT, 8OUT, 16OUT, 32OUT, 64OUT, 128OUT DFTHRH Digital filter cutout threshold NONE, 2DD, 5DD, 10DD, 20DD, 50DD, 100DD, 200DD, 250DD TAREFN Tare function BOTH, NOTARE, PBTARE, KEYED

34 420 Plus Installation Manual

Digital filtering 1, 2, 4, 8, 16, 32, 64

Table 5-3. CONFIG EDP Commands

Page 39

Command Description Values

PRI.DECPNT Primary units decimal position 8.88888, 88.8888, 888.888, 8888.88, 88888.8, 888888, 888880 PRI.DSPDIV Primary units display divisions 1D, 2D, 5D PRI.UNITS Primary units LB, KG, OZ, TN, T, G, NONE SEC.DECPNT Secondary units decimal position 8.88888, 88.8888, 888.888, 8888.88, 88888.8, 888888, 888880 SEC.DSPDIV Secondary units display divisions 1D, 2D, 5D SEC.UNITS Secondary units LB, KG, OZ, TN, T, G, NONE SEC.MULT Secondary units multiplier 0.00000–9999.99 DSPRATE Display rate 250MS, 500MS, 750MS, 1SEC, 1.5SEC, 2SEC, 2.5SEC, 3SEC,

, 6SEC, 8SEC

4SEC

Table 5-4. FORMAT EDP Commands

Command Description Values

WZERO Zero calibration — WVAL Test weight value test_weight_value WSPAN Span calibration — REZERO Rezero — LC.CD Set deadload coefficient value LC.CW Set span coefficient value

Table 5-5. CALIBR EDP Commands

Command Description Values

EDP.BAUD EDP port baud rate 300, 600, 1200, 2400, 4800, 96 EDP.BITS EDP port data bits/parity 8NONE, 7EVEN, 7ODD EDP.TERMIN EDP port termination character CR/LF, CR EDP.EOLDLY EDP port end-of-line delay 0–255 (0.1-second EDP.ECHO EDP port echo ON, OFF PRN.BAUD Printer port baud rate 300, 600, 1200, 2400, 4800, 96 PRN.BITS Printer port data bits/parity 8NONE, 7EVEN, 7ODD PRN.TERMIN Printer port termination character CR/LF, CR PRN.EOLDLY Printer port end-of-line delay 0–255 (0.1-second PRN.ECHO Printer port echo ON, OFF STREAM Streaming port OFF, EDP, PRN STRRTE Stream rate INDUST, LFT PRNDEST Print destination EDP, PRN PRNMSG Print message OFF, ON

intervals)

Table 5-6. SERIAL EDP Commands

00, 19200, 38400

420 Plus Installation Manual - EDP Commands 35

Page 40

Command Description Value s

PWRUPMD Power up mode GO, DELAY CNTMOD Counting Mode ENABLE, DSABLE, SPLSIZ REGULAT Regulatory compliance NTEP, OIML, CANADA, NONE SPLSIZ Sample size 10, 20, 50, 100, 5, PCWGT CONSNUM Consecutive number 0–999 999 CONSTUP Consecutive number start-up value 0–999 999 DATEFMT Date format MMDDYY, DDMMYY, YYMMDD, YYDDMM DATESEP Date separator SLASH, DASH, SEMI TIMEFMT Time format 12HOUR, 24HOUR TIMESEP Time separator COLON, COMMA ACCUM Accumulator ON/OFF ACCUM. RTZGRADS Return to zero trigger 0 - 10,000 GRADS

Table 5-7. PROGRM EDP Commands

Command Description Values

GFMT Gross demand print format

str

ing NFMT Net demand print fo CFMT Count demand print format

ing

str

rmat string

See Section 6.0 on page 39 for detailed information

Table 5-8. PFORMT EDP Commands

Command Description Val ues

SP1 SP2

SP1.ENABLE SP2.ENABLE Setpoint enable OFF, ON SP1.KIND SP2.KIND Setpoint kind GROSS, NET SP1.VALUE SP2.VALUE Setpoint value number SP1.TRIP SP2.TRIP Tr ip Higher, Lower, Inband, Outbnd SP1.BNDVAL SP2.BNDVAL Band value number SP1.HYSTER SP2.HYSTER Hysteresis number SP1.ACCESS SP2.ACCESS Setpoint access OFF, ON

Table 5-9. SETPNTS EDP Commands

Command Description Values

DIGIN1 DIGIN2

Digital input function OFF, ZERO, TARE, NT/GRS, UNITS,

KBDLOC, HOLD, CLRTAR, ACCUM, CLRACC, NEWID

DSPTAR, PRINT, CLRCN,

36 420 Plus Installation Manual

Table 5-10. DIG IN EDP Commands

Page 41

Command Description Values

SOURCE Analog output source GROSS, NET OFFSET Zero offset 0%, 20% ERRACT Error action FULLSC, HOLD, ZEROSC MIN Minimum value tracked 0–999 999 MINNEG Minimum negative OFF, ON MAX Maximum value tracked 0–999 999 MAXNEG Maximum negative OFF, ON TWZERO Zero calibration 0–16 383 TWSPAN Span calibration 0–16 383

Table 5-11. ALGOUT EDP Commands

5.1.6 Normal Mode Commands

The serial transmit weight data commands (see Tab le 5-12) transmit data to the EDP port on demand. The SX and EX commands are valid only in normal operating mode; all oth

er commands are valid in either setup or normal

mode.

Command Description Response Format

UID Set unit ID nnnnnnn SD Set date MMDDYY, DDMMYY, YYMMDD (enter using DATEFMT

specified) ST Set time hhmm (enter using 24-hour format) SX Start EDP streaming OK or ?? EX Stop EDP streaming OK or ?? RS Reset system — XA Transmit accumulator value nnnnnn UU XG Transmit gross weight in XN Transmit net weight in displayed units XT Transmit tare weight in displayed units XG2 Transmit gross weight in non-displayed units XN2 Transmit net weight in non-displayed units XT2 Transmit tare weight in non-displayed units XW Transmit current piece weight nnnnnn UU XC Transmit current part count nnnnnn PC XE Query system error conditions nnnnn nnnnn

displayed units

where nn

See Section 7.1.2 on page 43 for detailed information about

the XE command response format.

nnnn is the weight value, UU is the units.

Table 5-12. Normal Mode Commands

420 Plus Installation Manual - EDP Commands 37

Page 42

5.2 Saving and Transferring Data

Note

Connecting a personal computer to the 420 Plus EDP port allows you to save indicator configuration data to the PC or to download configuration data from the PC to an indicator. The following sections describe the procedures for these save and transfer operations.

5.2.1 Saving Indicator Data to a Personal Computer

Configuration data can be saved to a personal computer connected to the EDP port. The PC must be running a

communications program such as PROCOMMPLUS See Section 2.3.5 on page 10 for information about serial communications wiring and EDP port pin

ignments.

ass

When configuring the indicator

, ensure that the values set for the BAUD and BITS parameters on the SERIAL menu match the baud rate, bits, and parity settings configured for the serial port on the PC. Set the PRNDEST parameter to EDP.

To save all configuration data, place the indicator in setup mode and the indicator. The

send the DUMPALL EDP command to

420 Plus responds by sending all

configuration parameters to the PC as ASCII-formatted text.

5.2.2 Downloading Configuration Data from PC to Indicator

Configuration data saved on a PC or floppy disk can be downloaded from the PC to an indicator. This procedure is useful when a number of indicators with similar configurations are set up or when an indicator is replaced.

To download configuration data, connect the PC to the

port as described in Section 5.2.1. Place the

EDP indicator in setup mode and use the PC

communications s

oftware to send the saved configuration data to the indicator. When transfer is complete, calibrate the indicator as described in Section 4.0.

Calibration settings are included in the configuration data downloaded to the indicator.

the receiving indicator is a direct

If replacement for another is not changed, recalibration is not required.

When downloading configurations that include changed

ial communications settings, edit the data file to place

ser the serial communications changes at the end of the file. Communication between the PC and indicator will be lost once the indicator receives settings for baud rate (BAUD parameter) or data bits and parity (BITS parameter) that do not match those configured for the PC.

420 Plus and the attached scale

38 420 Plus Installation Manual

Page 43

6.0 Print Formatting

Note

The 420 Plus provides three print formats, GFMT, NFMT, and CFMT that determine the format of the printed output when the

PRINT key is pressed or when a

KPRINT EDP command is received. If a tare has been entered or acquired, NFMT is used; otherwise, GFMT is used.

Each print format can be customized to include up to

0 characters of information, such as company name

30 and address, on printed tickets. You can use the indicator front panel (PFORMT menu), EDP

commands, or the

Revolution

configuration utility to

customize the print formats.

Display will only show capital letters, press the down arrow to view the ASCII character decimal value on to Tab le 7-4 on page 45 and Tab le 7-5 on page 46 to view the ASCII character charts.

the second menu level. Refer

6.1 Print Formatting Commands

Table 6-1 lists commands you can use to format the gross, net and count print formats in the format strings must be enclosed between < and > delimiters. Any characters outside of the delimiters are printed as text on the ticket. Text characters can include any ASCII character that can be printed by the output device.

Command Description

<G> Gross weight in displayed units <G2> Gross weight in non-displayed units <N> Net weight in displayed units <N2> Net weight in non-displayed units <T> Tare weight in displayed units <T2> Tare weight in non-displayed units <A> Accumulated weight in displayed units <AC> Number of accumulator events (5-digit counter) <AD> Date of last accumulator event <AT> Time of last accumulator event <UID> Unit ID number <CN> Consecutive number

> New line (nn = number of termination (<CR/LF>

<NLnn

or <CR>) characters)* <C> Current piece count <W> Current piece weight

> Space (nn = number of spaces)*

<SPnn <SU> Toggle weight data format (formatted/

atted)**

unform <TI> Time

. Commands included

Command Description

<DA> Date <TD> Gross, net, and tare weights are 9 digits in length, including

sign (10 digits with decimal point), followed by a space and a two-digit units identifier. Total field length with units identifier is 12 (or 13) characters.

ID and consecutive number (CN) fields are 1–6 characters in length, as required.

* If nn is not specified, 1 is assumed. Value must be in the range 1–99.

** After receiving an SU command, the indicator sends unformatted data until the next SU command is received. Unformatted data omits decimal points, leading and trailing characters.

Time & Date

Table 6-1. Print Format Commands

The default GFMT, NFMT and CFMT print formats use only the new line (<NL>) command and the commands for gross, net, and tare weights in displayed units (<G>, <N>, and <T>). The default

420 Plus print

formats are shown in Table 6-2:

Format Default Format String Sample Output

GFMT NFMT

CFMT

ID numbers included in the print format string (<UID> comma

The 300-character limit of each print format string includes the output field length o not the command length. For example, if the indicator is configured to show a decimal point, the <G> command generates an output field of 13 characters: the 10-character weight value (including decimal point), one space, and a two-digit units identifier.

PT (preset tare) is added to the keyed in.

<G> GROSS<NL> 2046.81 lb GROSS <G> GROSS<NL>

<C><NL> 512 PC

4053.1 lb GROSS

15.6 lb TARE

4037.5 lb NET

Table 6-2. GFMT and NFMT Formats

The <G2>, <N2>, and <T2> commands listed in Tabl e 6-1 print the gross, net, and tare weights in non-displayed units—that is, in the units not currently displayed

nd) must be set using the UID EDP command.

on the indicator.

f the print formatting commands,

tare weight if tare was

Table 6-1. Print Format Commands

420 Plus Installation Manual - Print Formatting 39

Page 44

6.2 Customizing Print Formats

XXXXXXX XXXXXXXXXXXXXXXXXXXXX

GFMT

Display rst 6

characters of format

Same as GFMT

NFMT

ALGOUTDIGINSETPNTPROGRM PFORMTSERIALCALIBRCONFIG FORMAT

Display and edit

active character and

ASCII value

Delete active

character

Scroll right in format stringScroll left in format string

Increment ASCII value of active characterDecrement ASCII value of active character

Press to insert a space

befor

e the active character

VERS

Same as GFMT

CFMT

Note

The following sections describe procedures for customizing the GFMT, NFMT and CFMT formats using the EDP port, the front panel (PFORMT menu), and the

Revolution configuration utility.

A ticket printed using this format might look like the following:

FINE TRANSFER CO 32400 WEST HIGHWAY ROAD SMALLTOWN

6.2.1 Using the EDP Port

With a personal computer, terminal, or remote keyboard attached to the

420 Plus EDP port, you can

use the EDP command set to customize the print format strings.

To view the current setting of a

format string, type the

name of the string (GFMT, NFMT or CFMT) and press

ENTER. For example, to check the current configuration

of the GFMT format, type GFMT and press

ENTER.

The indicator responds by sending the current configuration for the gross format:

GFMT=<G> GROSS<NL>

To change the format, use the GFMT, NFMT or CFMT EDP command followed by an equals sign (=) and the modified print format string. For example, to add the name and address of a company to the gross format, you could send the following EDP command:

Indicator must be placed in the setup mode, CONFIG is

GFMT=FINE TRANSFER CO<NL>32400 WEST HIGHWAY ROAD<NL>SMALLTOWN<NL2><G> GROSS<NL>

shown on the display.

1345 lb GROSS

6.2.2 Using the Front Panel

If you have no access to equipment for communication through the EDP port or are working at a site where such equipment cannot be used, you can use the PFORMT menu (see Figure 6-1) to customize the print formats.

Using the PFORMT menu, you can edit the print format strings by

changing the decimal values of the

ASCII characters in the format string.

Lowercase letters and some special characters cannot be displayed on the 420 Plus front

panel (see the ASCII character charts on

page 45 and page 46) and are shown as blanks. The

Plus

can send or receive any ASCII character; the character printed depends on the particular ASCII character set implemented for the receiving device.

420

Figure 6-1. PFORMT Menu, Showing Alphanumeric Character Entry Procedure

40 420 Plus Installation Manual

Page 45

6.2.3 Using Revolution

The Revolution configuration utility provides a print formatting grid with a tool bar. The grid allows you to construct the print format without the formatting commands (<NL> and <SP>) required by the front panel or EDP command methods. Using

Revolution, you can type text directly into the grid, then select weight value fields from

the tool bar and place them where you want them to appear on the printed ticket.

Figure 6-2 shows an example of the

Revolution print formatting grid.

Figure 6-2. Revolution Print Format Grid

420 Plus Installation Manual - Print Formatting 41

Page 46

7.0 Appendix

7.1 Error Messages

The 420 Plus indicator provides a number of error messages. When an error occurs, the message is shown on the indicator LED display. Error conditions can also be checked remotely by using the XE EDP command as described in Section 7.1.2 on page 43.

7.1.1 Displayed Error Messages

The 420 Plus provides a number of front panel error messages to assist in problem diagnosis. Tab l e 7-1 lists these messages and their meanings.

Error Message Description Solution

E A/D A/D physical error Call Rice Lake Weighing Systems (RL VIREE Virgin EEPROM Use TEST menu to perform DEFLT (restore defaults) procedure, then

ecalibrate load cells.

EPCKSM Parameter checksum error ADCKSM A/D calibration checksum error A/D converter requires recalibration. Call RLWS Service. PFCKSM Printer format checksum error Call RLWS Service. LCCKSM Load cell calibration checksum error Recalibrate load cells. EIDATA Internal RAM checksum error Call RLWS Service. E REF A/D reference error A/D converter requires recalibration. Call RLWS Service. ERROR Internal program error Check configuration. Ru

OVERFL Overflow error Weight value too large to be displayed.

------ Gross > overload limit Gross value exceeds overload limit. Check conf

______ A/D underrange A/D reading < –4 mV. Check scale for binding or damage. RNGERR GRADS > 100,000

WVAL > 100,000 CNTERR Count error, insufficient sample size Reconfigure, parts sample too sm EEPERR EEPROM error Call Rice Lake Weighing Systems (RL

n XE command (see Section 7.1.2 on page 43) to determine error type. Call RLWS Service if unable to clear err recurs.

input level. Overload can be caused by input signal > 45 mV or common mode voltage > 950 mV.

Only shows up in Config mode.

WS) Service.

or by cycling power or if error

iguration or signal

all for current configuration

WS) for service

42 420 Plus Installation Manual

Table 7-1. 420 Plus Error Messages

Page 47

7.1.2 Using the XE EDP Command

The XE EDP command can be used to remotely query

420 Plus for the error conditions shown on the front

the panel. The XE command returns two 5-digit numbers in the format:

xxxxx yyyyy

where xxxxx contains a decimal representation of any existing error conditions as described in Tab le 7-2.

If more than one error condition exists, the number returned is the

sum of the values representing the error conditions. For example, if the XE command returns the number 1040, this value represents the sum of an A/ D reference error (1024) and an A/D calibration checksum error (16).

The second number returned (

yyyyy) uses the same bit

assignments as shown in Table 7-2 to indicate whether the test for the error condition was run. For example, the value

yyyyy = 50815 represents the decimal

equivalent of the binary value 1100 0110 0111 1111. Using the bit assignments in Tabl e 7-2, this value indicates all tests were run.

Error

Code

0x0001 0x0002 0x0004 0x0008 0x0010 0x0020 0x0040 0x0080 0x0100 0x0200 0x0400 0x0800 0x1000 0x2000 0x4000 0x8000

0x10000 - 0x80000000

EEPROM Error 0000 0000 0000 0001 Virgin EEPROM 0000 0000 0000 0010 Config Parameter Checksum 0000 0000 0000 0100 Load Cell Checksum 0000 0000 0000 1000 A/D Calibration Checksum 0000 0000 0001 0000 Print Formats Checksum 0000 0000 0010 0000 XA Internal RAM Error 0000 0000 0100 0000 External RAM Error 0000 0000 1000 0000 Reserved 0000 0001 0000 0000 ADC Physical Error 0000 0010 0000 0000 ADC Reference 0000 0100 0000 0000 Count Error 0000 1000 0000 0000 Reserved 0001 0000 0000 0000 Display Range 0010 0000 0000 0000 ADC Range 0100 0000 0000 0000 Gross Limit 1000 0000 0000 0000

Table 7-2. Error Codes Returned on XE Command

Description Binary Value

Reserved

7.2 Status Messages

Two EDP commands, P and ZZ, can be used to provide status about the indicator. These commands are described in the following sections.

7.2.1 Using the P EDP Command

The P EDP command returns the current displayed weight value to the EDP port, along with the units identifier. If the indicator is in an underrange or overload condition, the weight value is replaced with

&&&&&& (overload) or :::::: (underrange).

7.2.2 Using the ZZ EDP Command

The ZZ EDP command can be used to remotely query which annunciators are currently displayed on the indicator front panel. The ZZ command returns the currently displayed weight and a decimal number representing the LED annunciators currently lit. The format of the returned data is:

wwwwww uu zzz

where wwwwww uu is the current displayed weight and

zzz is the annunciator status value (see Tabl e 7-3).

units, If more than one annunciator is lit, the second number returne annunciators.

Example: If the annunciator status value returned on

the ZZ command is 145, the gross, standstill, and lb annunciators are lit. 145 represents the sum of the values for the standstill annunciator (128), gross mode annunciator (16), and the lb/primary units annunciator (1).

d is the sum of the values representing the active

Decimal

Value

1 lb/primary units 2 kg/secondary units 4 Count

8 Tare entered 16 Gross 32 Net 64 Center of zero

128 Standstill

Table 7-3. Status Codes Returned on the ZZ Command

Annunciator

420 Plus Installation Manual - Appendix 43

Page 48

7.3 Continuous Output (Stream) Format

ASCII 02 (decimal)

Weight data: 7 digits, right-justiﬁed, with decimal point, l eading zer o s upr e ssion. Overload = ^^^^^^^ Underrange = ] ] ] ] ] ] ] Display overﬂow = OVERFL

L = pounds K = kilogram T = ton G = grams O = ounces <space> = none

G = Gross N = Net

Status:

< space > = valid

I = Invalid

M = Motion

O = Over/under range

Polarity: < space

> = Positive <–> = Negative <^> = Overload <]> = Underrange

or <CR>

ASCII 13, 10

(decimal)

Figure 7-1 shows the continuous output format sent to the 420 Plus EDP or printer port when the STREAM parameter (SERIAL menu) is set to either EDP or PRN.

Figure 7-1. Continuous Output Data Format

44 420 Plus Installation Manual

Page 49

7.4 ASCII Character Chart

Use the decimal values for ASCII characters listed in Tables 7-4 and 7-5 when specifying print format strings on

420 Plus PFORMT menu. The actual character printed depends on the character mapping used by the output

the device.

420 Plus can send or receive any ASCII character value (decimal 0–255), but the indicator display is limited to

The numbers, upper-case, unaccented letters, and a few special characters. See Section 7.5 on page 47 for information about the

Control ASCII Dec Hex ASCII Dec Hex ASCII Dec Hex ASCII Dec Hex

420 Plus LED display.

Ctrl-@ NUL 00 00 space 32 20 @ 64 40 ` 96 60

Ctrl-A SOH 01 01 ! 33 21 A 65 41 a 97 61 Ctrl-B STX 02 02 “ 34 22 B 66 42 b 98 62

Ctrl-C ETX 03 03 # 35 23 C 67 43 c 99 63

Ctrl-D EOT 04 04 $ 36 24 D 68 44 d 100 64 Ctrl-E ENQ 05 05 % 37 25 E 69 45 e 101 65

Ctrl-F ACK 06 06 & 38 26 F 70 46 f 102 66 Ctrl-G BEL 07 07 ’ 39 27 G 71 47 g 103 67 Ctrl-H BS 08 08 ( 40 28 H 72 48 h 104 68

Ctrl-I HT 09 09 ) 41 29 I 73 49 i 105 69 Ctrl-J LF 10 Ctrl-K VT 11 0B + 43 2B K 75 4B k 107 6B Ctrl-L FF 12 0C , 44 2C L 76 4C l 108 6C

Ctrl-M CR 13 0D - 45 2D M 77 4D m 109 6D Ctrl-N SO 14 0E . 46 2E N 78 4E n 110 6E Ctrl-O SI 15 0F / 47 2F O 79 4F o 111 6F

Ctrl-P DLE 16 10 0 48 30 P 80 50 p 112 70

Ctrl-Q DC1 17 11 1 49 31 Q 81 51 q 113 71

Ctrl-R DC2 18 12 2 50 32 R 82 52 r 114 72 Ctrl-S DC3 19 13 3 51 33 S 83 53 s 115 73 Ctrl-T DC4 20 14 4 52 34

Ctrl-U NAK 21 15 5 53 35 U 85 55 u 117 75

Ctrl-V SYN 22 16 6 54 36 V 86 56 v 118 76

Ctrl-W ETB 23 17 7 55 37 W 87 57 w 119 77

Ctrl-X CAN 24 18 8 56 38 X 88 58 x 120 78 Ctrl-Y EM 25 19 9 57 39 Y 89 59 y 121 79 Ctrl-Z SUB 26 1A : 58 3A Z 90 5A z 122 7A

Ctrl-[ ESC 27 1B ; 59 3B [ 91 5B { 123 7B

Ctrl-\ FS 28 1C < 60 3C \ 92 5C | 124 7C

Ctrl-] GS 29 1D = 61 3D ] 93 5D } 125 7D Ctrl-^ RS 30 1E > 62 3E ^ 94 5E ~ Ctrl-_ US 31 1F ? 63 3F _ 95 5F DEL 127 7F

0A * 42 2A J 74 4A j 106 6A

T 84 54 t 116 74

126 7E

Table 7-4. ASCII Character Chart (Part 1)

420 Plus Installation Manual - Appendix 45

Page 50

ASCII Dec Hex ASCII Dec Hex ASCII Dec Hex ASCII Dec Hex

Ç 128 80 á 160 A0 192 C0  224 E0

ü 129 81 í 161 A1 193 C1 ß 225 E1

é 130 82 ó 162 A2 194 C2  226 E2

â 131 83 ú 163 A3 195 C3  227 E3

ä 132 84 ñ 164 A4 196 C4  228 E4

à 133 85 Ñ 165 A5 197 C5  229 E5

å 134 86 ª 166 A6 198 C6 μ 230 E6

ç 135 87 º 167 A7 199 C7  231 E7

ê 136 88 ¿ 168 A8 200 C8  232 E8

ë 137 89 169 A9 201 C9  233 E9

è 138 8A ¬ 170 AA 202 CA  234 EA

ï 139 8B 1/2 171 AB 203 CB  235 EB î 140

ì 141 8D ¡ 173 AD 205 CD  237 ED Ä 142 8E « 174 AE 206 CE  238 EE Å 143 8F » 175 AF 207 CF  239 EF É 144 90 176 B0 208 D0  240 F0

æ 145 91 177 B1 209 D1 ± 241 F1 Æ 146 92 178 B2 210 D2  242 F2

ô 147 93 179 B3 211 D3  243 F3 ö 148 94 180 B4 212 D4  244 F4 ò 149 95 181 B5 213 D5  245 F5 û 150 96 182 B6 214 D6 ÷ 246 F6 ù 151 97 183 B7 215 D7 ˘ 247 F7

ÿ 152 98 184 B8 216 D8 ° 248 F8 Ö 153 Ü 154 9A 186 BA 218 DA 250 FA

¢ 155 9B 187 BB 219 DB 251 FB £ 156 9C 188 BC 220 DC 252 FC ¥ 157 9D 189 BD 221 DD

Pts 158 9E 190 BE 222 DE 254 FE

ƒ 159 9F 191 BF 223 DF 255 FF

8C 1/4 172 AC 204 CC  236 EC

99 185 B9 217 D9 • 249 F9

253 FD

46 420 Plus Installation Manual

Table 7-5. ASCII Character Chart (Part 2)

Page 51

7.5 Front Panel Display Characters

-9 EQ

.: FR

/; GS

0< HT

1= %IU

&2 >J V

‘

3? KW

(4 @L X

)5 AM Y

*6 BN Z

+7 CO [

,8 DP \

Figure 7-2 shows the 7-segment LED character set used to display alphanumeric characters on the 420 Plus front panel.

Figure 7-2. 420 Plus Display Characters

420 Plus Installation Manual - Appendix 47

Page 52

7.6 Conversion Factors for Secondary

Note

Units

The 420 Plus has the capability to mathematically convert a weight into many different types of units and instantly display those results with a press of the key.

Secondary units can be specified on the FORMAT men

u using the SECNDR parameter, or by using EDP

commands.

Multipliers are preconfigured within the indicator. Manual entry is only necessary when

E is selected under UNITS. Long tons and grain units listed in Tab le 7-6 cannot be directly specified as primary or secondary units. For these or other unlisted units

Ensure that the secondary decimal point position is set appropriately for the scale capacity in the secondary units. If the converted value requires more digits than are available, the indicator will display an overflow message (OVERFL).

For example, if the primary units are short tons, secondary units are to 8888.88, the indicator will overflow if 5 tons or more are applied to the scale. With 5 tons applied, and a conversion factor of 2000, the secondary units display needs five digits to the left of the decimal point to display the 10000 lb secondary units value.

NON

of weight, specify NONE under UNITS.

pounds, and the secondary decimal point is set

UNITS

Primary Unit x Multiplier Secondary Unit

grains 0.064799 grams

0.002286 ounces

0.000143 pounds

0.000065 kilograms

ounces 437.500 grains

28.3495 grams

0.06250 pounds

0.02835 kilograms

pounds 7000.00 grains

453.592 grams

16.0000 ounces

0.453592 kilograms

0.000500 short tons

0.000446 long tons

0.000453 metric tons

short tons 2000.00 pounds

907.185 kilograms

0.892857 long tons

0.907185 metric tons

grams 15.4324 grains

0.035274 ounces

0.002205 pounds

0.001000 kilograms

kilograms 15432.4 grains

35.2740 ounces

1000.00 grams

2.20462 pounds

0.001102 short tons

0.000984 long tons

0.001000 metric tons

metric tons 2204.62 pounds

1000.00 kilograms

1.10231 short tons

0.984207 long tons

long tons 2240.00 pounds

1016.05 kilograms

1.12000 short tons

1.01605 metric tons

Multipliers in italics are preconfigured

Table 7-6. Conversion Factors

48 420 Plus Installation Manual

Page 53

7.7 Digital Filtering

DIGFL1

DIGFL2

DIGFL3

8OUT

32OUT

16OUT

64OUT

DFSENS DFTHRH

2OUT

128OUT

4OUT

2DD

NONE

5DD

20DD

10DD

50DD

200DD

100DD

250DD

DIGFL1= n1 DIGFL2= n2 DIGFL3= n3

3rd Stage

Filter A verage

2nd Stage

Filter A verage

1st Stage

Filter A verage

Displayed

Value

2nd Stage

Filter A verages

1st Stage

Filter A verages

A/D Readings

The 420 Plus uses averaged digital filtering to reduce the effect of vibration on weight readings. Adjustable threshold and sensitivity functions allow quick settling by suspending filter averaging, allowing the weight reading to jump to the new value. Figure 7-3 shows the digital filter parameters on

Figure 7-3. Digital Filtering Parameters on the Configuration (CONFIG) Menu

the CONFIG menu.

Figure 7-4. Flow Diagram for 420 Plus Digital Filters

7. 7. 1 D I G F L x P a r a m e t e r s

The first three digital filtering parameters, DIGFL1, DIGFL2, and DIGFL3, are configurable filter stages that control the effect of a single A/D reading on the displayed weight. The value assigned to each parameter sets the number of readings received from the preceding filter stage before averaging (see Figure 7-4).

7.7.2 DFSENS and DFTHRH Parameters

The three digital filters can be used by themselves to eliminate vibration effects, but heavy filtering also increases settling time. The DFSENS (digital filter sensitivity) and DFTHRH (digital filter threshold) parameters can be used to temporarily override filter averaging and improve settling time:

• DFSENS specifies the number of consecutive

The overall filtering effect can be expressed by adding

values assigned to the three filter stages:

the

DIGFL1 + DIGFL2 + DIGFL3

For example, if the filters are configured as

• DFTHRH sets a threshold value, in display

DIGFL1=4, DIGFL2=8, DIGFL3=8, the overall filtering effect is 20 (4 + 8 + 8). With this configuration, each A/D reading has a 1-in-20 effect on the displayed weight value. Setting the filters to 1 effectively disables digital filtering.

scale readings that must fall

outside the filter threshold (DFTHRH) before digital filtering is suspended.

divisions. When

a specified number of consecutive scale readings (DFSENS) fall outside of this threshold, digital filtering is suspended. Set DFTHRH to NONE to turn off the filter override.

420 Plus Installation Manual - Appendix 49

Page 54

7.7.3 Setting the Digital Filter Parameters

Note

XXXXXXX XXXXXXX ALGOUT DIGIN SETPNT XXXXXXX PROGRM PFORMT SERIAL CALIBR XXXXXXX CONFIG FORMAT

SOURCE

GROSS

20%

OFFSET

ERRACT

FULLSC

HOLD

000000

number

MIN

10000

number

MAX

TWZERO

NET

ZEROSC

VERS

MINNEG

OFF

MAXNEG

OFF

Fine-tuning the digital filter parameters greatly improves indicator performance in heavy-vibration environments. Use the following procedure to determine vibration effects on the scale and optimize the digital filtering configuration.

1. In setup mode, set all three digital filters (DIGF

L1, DIGFL2, DIGFL3) to 1. Set DFTHRH to NONE. Return indicator to normal mode.

2. Remove all weight from the scale, then watch indicator display to determine the

the magnitude of vibration effects on the scale. Record the weight below which all but a few readings fall. This value is used to calculate the DFTHRH parameter value in Step 4.

For example, if a heavy-capacity scale

duces vibration-related readings of up to 50

pro lb, with occasional spikes to 75 lb, record 50 lb as the threshold weight value.

3. Place the indicator in setup mode and set the

digital fi

lters (DIGFLx) to eliminate the

vibration effects on the scale. (Leave DFTHRH set to NONE.) Reconfigure as necessary to find the lowest effective values for the DIGFLx parameters.

4. With optimum values assigned to the DIGFLx parameters, calculate the DFTHRH parameter

by converting the weight value recorded

value in Step 2 to display divisions:

threshold_weight_value / DSPDIV

In the example in Step 2, with a threshold weight value of 50 lb and a display division value of 5lb:

50 / 5lb = 10DD. DFTHRH should

be set to 10DD for this example.

5. Finally, set the DFSENS parameter high enough to

ignore transient peaks. Longer transients (typically caused by lower vibration frequencies) will cause more consecutive out-of-band readings, so DFSENS should be set higher to counter low frequency transients.

Reconfigure as necessary to find the lowest

fective value for the DFSENS parameter.

7.8 Analog Output Calibration

The following calibration procedure requires a multimeter to measure voltage or current output from the analog output module. If the option is not already installed, see Section 2.3.7 on page 11.

The analog output must be calibrated after the indicator itself has been configured (Section 3.0) and calibrated (Section 4.0).

Figure 7-5. Analog Output Menu

1. Enter setup mode and go to the ALGOUT menu (see Figure 7-5).

• Set OFFSET to 0% for 0–10 V output,

% for 4–20 mA output

• Set MIN to lowest weight value to be

tracked by

the analog output

• Set MAX to highest weight value to be

tracked by

the analog output

2. Connect multimeter to analog output:

• For voltage output, connect voltmeter

leads to pins three and four

• For current output, connect ammeter leads

pins one and two

3. Adjust zero calibration: Scroll to the TWZ

ERO parameter. Check voltage or current

50 420 Plus Installation Manual

reading on multimeter. Press and hold to adjust the zero value up or down.

4. Adjust span calibration: Scroll to the TWSPAN parameter multimeter. Press and hold

. Check voltage or current reading on

or to adjust the

span value up or down.

5. Final zero calibration: Return to the TWZERO parameter a

nd verify that the zero calibration has not drifted. Press and hold or to re-adjust the zero value as required.

6. Return to normal mode. Analog output fu

nction can be verified using test weights.

Page 55

7.9 Test Mode

Note

A/DTST

TEST

ADOFFS

ADGAIN

DEFLT

EXIT

Not used

ENTER

Move LEFT

Move RIGHT

In addition to normal and setup modes, test mode provides a number of diagnostic functions for the

, including:

Plus

• Display raw A/D count

• Reset configuration parameters to default lues

• A/D internal calibration

Test Mode is intended for factory use only.

Figure 7-6. Test Mode Menu

420

To enter test mode, press and hold the setup switch until the front panel display shows the word

TEST. After

about three seconds, the test mode display automatically shifts to the first test menu function, A/ DTST.

Figure 7-6 shows the Test Menu structure; Figure 7-7 shows the front panel key functions

in test mode. Note that, because the Test Menu functions are all on a single menu level, the function. Press the

GROSS/NET ( ) key has no

ZERO ( ) key to exit test mode.

Table 7-7 summarizes the test menu functions.

Figure 7-7. Front Panel Key Functions in Test Mode

TEST Menu

Function Description

A/DTST Display A/D test

Press and hold Enter key to display raw count from A/D converter.

DEFLT Default parameters

Press setup switch and Enter key default values. Load cells must be recalibrated before using the indicator (see Section 4.0 on page 30).

at the same time to reset configuration and calibration parameters to factory

Table 7-7. Test Mode Menu Functions

420 Plus Installation Manual - Appendix 51

Page 56

7.10 Regulatory Mode Functions

REGULAT

Parameter Value Weight on Scale Ta r e in S yst e m

NTEP zero or negative no no action ZERO

yes CLEAR TARE

positive no TARE

yes TARE

CANADA zero or negative no no action TARE

yes CLEAR TARE

positive no TARE

yes no action

OIML zero or negative no no action ZERO

yes CLEAR TARE ZERO and CLEAR TARE

positive no TARE ZERO

yes TARE ZERO and CLEAR TARE

NONE zero or negative no TARE ZERO

yes CLEAR TARE

positive no TARE

yes CLEAR TARE

Front Panel Key Function

TARE ZERO

Table 7-8. TARE and ZERO Key Functions for REGULAT Parameter Settings

7.11 LED Functions

The following is a list of diagnostic LEDs for the 420

. see Figure 2-4 8 for locations on the 420 Plus

Plus

CPU board.

Serial Port Status

LED1 (EDP Port) Flashing red = TXD activity

Flashing green = RXD activity On steady or off = No activity

LED2 (PRN Port) Flashing red = TXD activity

Flashing green = RXD activity On steady or off = No activity

Power Supply

LED (+5AV) Excitation/ADC supply on LED (+5V & +3.3V) Digital logic supply on



      

Operation Status

LEDHB (Microprocessor) Flashing green = Active

Red = Fault

LED AD (ADC) Green = Active

Red = Fault

LED MEM (Memory Test) Green = Pass

Red = Fail LED ANA Red = Not Implemented (Analog Option Card)

Digital Input/Output Status

DO 1 (Digital Out 1) On when lit (active low) DO2 (Digital Out 2) On when lit DI 1 (Digital In 1) On when lit (active low) DI 2 (Digital In 2) On when lit (active low)

(active low)

52 420 Plus Installation Manual

Page 57

7.12 Specifications

Model Numbers

United States 420-2A (AC) (NEMA 5-15)

420-2C (DC)

International 420-2B (AC) (CEE-7)

420-2D (DC)

Power - AC

Line Voltages 115 or 230 VAC Frequency 50 or 60 Hz Power Consumption 1.5 A @ 115 VAC (8W)

0.75 A @ 230 VAC (8W)

Fusing 2.5 A 5 x 20 mm fuse

Power - DC

Line Voltages 9-36 VDC DC Input Power Consumption 1.5 A Max Fusing Internal short circuit protection

Analog Specifications

Full Scale Input Signal Up to 22.5 mV Excitation Voltage +5V single sided

8 x 350 or 16 x 700 l

Sense Amplifier Differential amplifier with

4- and 6-wire sensing

Analog Signal

Input Range –0.5 mV/V to +4.5 mV/V

Analog Signal

Sensitivity 0.3 V/gra

1.5 V/gra

Input Impedance 200 M,

duation minimum, d recommended

typical Noise (ref to input) 0.3 V p-p with digital Internal Resolution 8,000,000 counts Display Resolution 100 000 dd Measurement Rate Up to 60 measurements/sec Input Sensitivity 10 nV per internal count System Linearity Within 0.01% of full scale Zero Stability 150 nV/°C, maximum Span Stability 3.5 ppm/°C, maximum Calibration Method Software, constants stored in EEPROM Common Mode

Voltage –2.35 to +3.45 V, referred to ground Rejection 130 dB minimum @ 50 or 60 Hz

Normal Mode

Rejection 90 dB minimum @ 50 or 60 Hz

Input Overload ± 12 V conti

nuous, static discharge

protected

RFI Protection Signal, excitation

protected by capacitor bypass

Analog Output Optional: fully isolated, voltage or

current output,14-bit resolution. Voltage output: 0 –10 VDC Load resistance:1K minimum Current output: 4–20 mA External loop resistance: 500

ximum

oad cells

filters at 4-4-4

, and sense lines

Digital Specifications

Microcomputer Phillips PXAG30K main processor @

Digital Inputs 2 inputs, TTL or switch closure,

Digital Outputs 2 outputs, 250 mA Max Sink Digital Filters 3 filters, softwar

19.6608 MHz

active-low

e selectable

Serial Communications

EDP Port Full duplex RS-232 Printer Port fully capable RS-232 or active 20 mA

curr

ent loop (transmit only)

Both Ports 38400, 19200, 9600, 4800, 2400,

1200, 600, 300 bps; 7 or 8 data bits; even, odd, or no parity

Operator Interface

Display 6-digit LED display. 7-segment, 0.8 in

(20 mm) digits

LED annunciators Gross, net, center of zer

o, standstill, lb/ primary units, kg/secondary units, count, tare

Keypad 21-key flat membrane panel

Environmental

Operating Temperature –10 to +40°C (legal);

–10 to +50°C (industrial)

Storage Temperature –25 to +70°C Humidity 0–95% relative humidity

Enclosure

Enclosure Dimensions 9.5 in x 6 in x 3.12 in

24 cm x 15 cm x 8 cm

Weight 2.8 Kg (6.1 lb) Rating/Material UL Type 4X

Certifications and Approvals

NTEP CoC Number 04-076 Accuracy Class III/III L

max : 10 000

Measurement Canada (Pending)

Accuracy Class III/III HD

max

: 10 000

420 Plus Installation Manual - Appendix 53

Page 58

420 Plus Limited Warranty

Rice Lake Weighing Systems (RLWS) warrants that all RLWS equipment and systems properly installed by a Distributor or Original Equipment Manufacturer (OEM) will operate per written specifications as confirmed by the Distributor/OEM and accepted by RLWS. All systems and components are warranted against defects in materials and workmanship for two years.

RLWS warrants that the equipment sold hereunder will conform to the current written specifications authorized by RLWS. RLWS warrants the equipment against faulty workmanship and defective materials. If any equipment fails to conform to these warranties, RLWS will, at its option, repair or replace such goods returned within the warranty period subject to the following conditions:

• Upon discovery by Buyer of such nonconformity, RLWS will be given prompt written notice with a detailed explanation of the alleged deficiencies.

• Individual electronic components returned to RLWS for warranty purposes must be packaged to prevent electrostatic discharge (ESD) damage in shipment. Packaging requirements are listed in a publication, Protecting Your Components From Static Damage in Shipment, available from RLWS Equipment Return Department.

• Examination of such equipment by RLWS confirms that the nonconformity actually exists, and was not caused by accident, misuse, neglect, alteration, improper installation, improper repair or improper testing; RLWS shall be the sole judge of all alleged non-conformities.

• Such equipment has not been modified, altered, or changed by any person other than RLWS or its duly authorized repair agents.

• RLWS will have a reasonable time to repair or replace the defective equipment. Buyer is responsible for shipping charges both ways.

• In no event will RLWS be responsible for travel time or on-location repairs, including assembly or disassembly of equipment, nor will RLWS be liable for the cost of any repairs made by others.

THESE WARRANTIES EXCLUDE ALL OTHER WARRANTIES, EXPRESSED OR IMPLIED, INCLUDING WITHOUT

LIMITATION WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. NEITHER RLWS NOR DISTRIBUTOR WILL, IN ANY EVENT, BE LIABLE FOR INCIDENTAL OR CONSEQUENTIAL DAMAGES.

RLWS AND BUYER AGREE THAT RLWS’ SOLE AND EXCLUSIVE LIABILITY HEREUNDER IS LIMITED TO REPAIR

OR REPLACEMENT OF SUCH GOODS. IN ACCEPTING THIS WARRANTY, THE BUYER WAIVES ANY AND ALL OTHER CLAIMS TO WARRANTY.

SHOULD THE SELLER BE OTHER THAN RLWS, THE BUYER AGREES TO LOOK ONLY TO THE SELLER FOR

WARRANTY CLAIMS.

NO TERMS, CONDITIONS, UNDERSTANDING, OR AGREEMENTS PURPORTING TO MODIFY THE TERMS OF THIS

WARRANTY SHALL HAVE ANY LEGAL EFFECT UNLESS MADE IN WRITING AND SIGNED BY A CORPORATE OFFICER OF RLWS AND THE BUYER.

RICE LAKE WEIGHING SYSTEMS • 230 WEST COLEMAN STREET • RICE LAKE, WISCONSIN 54868 • USA

54 420 Plus Installation Manual

Page 59

Page 60

PN 85127 12/12

Rice Lake 420 User Manual

Contents

About This Manual

Safety

1.0 Introduction

1.1 Operating Modes

1.2 Front Panel Keypad

1.3 LED Annunciators

1.4 Indicator Operations

1.4.1 Toggle Gross/Net Mode/Piece Count

1.4.2 Toggle Units

1.4.3 Zero Scale

1.4.4 Acquire Tare

1.4.5 Enter Tare (Keyed Tare)

1.4.6 Remove Stored Tare Value

1.4.7 Acquire Parts Sample

1.4.8 Display Part Weight

1.4.9 Display Accumulator

1.4.11 Display or Change Setpoint Value

1.4.12 Turn Setpoint On or Off

1.4.13 Print Ticket

1.4.14 Enter New ID

1.4.10 Display or Change Time

2.0 Installation

2.1 Unpacking and Assembly

2.2 Enclosure Disassembly

2.3 Cable Connections

2.3.1 Cable Grounding

2.3.2 Bypass Power Button

2.3.3 DC Power Wiring Guidelines

2.3.4 Load Cells

2.3.5 Serial Communications

2.3.6 Digital I/O

2.3.7 Analog Output

2.4 Analog Output Module Installation

2.5 Enclosure Reassembly

2.6 Board Removal

2.7 Replacement Parts

3.0 Configuration

3.1 Configuration Methods

3.1.1 Revolution Configuration

3.1.2 EDP Command Configuration

3.1.3 Front Panel Configuration

3.2 Menu Structures and Parameter Descriptions

3.2.1 Configuration Menu

3.2.2 Format Menu

3.2.3 Calibration Menu

3.2.4 Serial Menu

3.2.5 Program Menu

3.2.6 Print Format Menu

3.2.7 Setpoint Menu

3.2.8 Digital Input Menu

3.2.9 Analog Output Menu

3.2.10 Version Menu

4.0 Calibration

4.1 Front Panel Calibration

4.2 EDP Command Calibration

4.3 Revolution Calibration

4.4 More About Calibration

4.4.1 Adjusting Final Calibration

4.4.2 Zero Deadload A/D Counts

5.0 EDP Commands

5.1 The EDP Command Set

5.1.1 Key Press Commands

5.1.2 Reporting Commands

5.1.3 The RESETCONFIGURATION Command

5.1.4 Parameter Setting Commands

5.1.5 Soft Reset

5.1.6 Normal Mode Commands

5.2 Saving and Transferring Data

5.2.1 Saving Indicator Data to a Personal Computer

5.2.2 Downloading Configuration Data from PC to Indicator

6.0 Print Formatting

6.1 Print Formatting Commands

6.2 Customizing Print Formats

6.2.1 Using the EDP Port

6.2.2 Using the Front Panel

6.2.3 Using Revolution

7.0 Appendix

7.1 Error Messages