HI 1756-1DF and HI 1756-2DF Dispenser Filler Control Module User’s Guide Corporate Headquarters 9440 Carroll Park Drive, Suite 150 San Diego, CA 92121 Phone: 1-800- 821-5831 FAX: (858) 278-6700 Web-site: http://www.hardysolutions.com Hardy Process Solutions Document Number: 0596-0322-01 Revision B Copyright April 2012 Hardy Process Solutions, Inc. All Rights Reserved.
Local Field Service Hardy has over 200 field technicians in the U.S., and more positioned throughout the world to assist you in your support needs. We also have factory engineers who will travel to your facility anywhere in the world to help you solve challenging applications.
Contents ●●●●● CONTENTS ........................................................................................................... I CHAPTER 1 OVERVIEW ..................................................................................... 1 About Hardy Manuals ................................................................................................................................. 1 HI 1756 nDF Overview .................................................................................................
Command Return or Error Codes .............................................................................................................. 29 Second and Third Words - 1, 2: Parameter Number and Value ............................................................. 29 DINT Configuration Parameters ............................................................................................................... 29 REAL Configuration Parameters ......................................................................
Chapter 1 Overview ●●●●● This manual provides users and service personnel with specifications and procedures for installing, configuring, operating, maintaining, and troubleshooting the Hardy Process Solutions HI 1756 nDF Dispenser Filler with WAVERSAVER®, C2®, and INTEGRATED TECHNICIANTM (IT®) diagnostics. NOTE WAVERSAVER, C2, and IT are registered trademarks of Hardy Process Solutions, Inc. To ensure good performance and maximum service life, follow all guidelines described in this manual.
for nosier environments while the 145 updates per second mode provides a faster response time to changes in the flow rate. The module supports both C2 electronic calibration and hard calibration (i.e., traditional calibration with weights). Typical Applications Dispenser filler control can be used in a variety of material-flow applications.
Weighing System Tests - Optional This test is used to diagnose drifting or unstable weight reading problems. It requires the HI 215IT Series Junction Box for full utilization. The ability to read the weight seen by the individual load sensors allows you to use this test for making cornering, leveling and load sharing adjustments to the weighing system. The Weighing System Test provides the following problem detection support: 1.
The Manual Refill option allows for manual refill at any time, via the STARTREFILL command; the refill cycle will automatically stop when the weight reaches the stop refill weight parameter value. The STOP command will set both relays to their default (OPEN) state. The SETRELAY command can also be used to directly control the relay states regardless of weight value. In the filler mode the PLC will need to remotely detect the level in the dispensing vessel and implement a manual refill operation.
Chapter 2 Specifications ●●●●● Chapter 2 provides specifications for the HI 1756 nDF Dispenser-Filler and other equipment that may come with the package. The specifications listed are designed to assist in the installation, operation and troubleshooting of the instrument. All service personnel should be familiar with this section before installing or repairing the instrument.
HI 1756 1DF HI 1756 2DF 1 Weigh Scale Channel 2 Weigh Scale Channels Update Rate 95(10.5ms) or 145(6.9ms) Updates per Second Averages 1-255 User-selectable in Single Increments WAVERSAVER® User Selectable OFF 7.50 Hz 3.50 Hz 1.00 Hz (Default) 0.50 Hz 0.25 Hz Digital Voltmeter (Integrated Technician – Diagnostic Mode Only) Accuracy ± 2% of full scale Relay Two integrated solid state DC or AC relays per weigh scale channel Default state of relays will be OPEN (Form A - NO). For resistive loads only.
Chapter 3 Installation ●●●●● Chapter 3 covers unpacking, cabling, interconnecting, configuring, and installing the Weigh Scale Module. User and service personnel should read this chapter before installing or operating the Weigh Scale module. Unpacking Step 1. Before signing the packing slip, inspect the packing and contents for damage of any kind. Report any damage to the carrier company immediately. Step 2. Verify that everything in the package matches the bill of lading. Step 3.
Step 4. When the module connector is touching the backplane connector, firmly but carefully push toward the chassis until the pins are plugged in and the top and bottom module releases are snapped into place. Module release(s) Module installed in chassis Removing the Module from the Chassis Step 1. Press down on the top and bottom module releases simultaneously until the module can be pulled away from the chassis. (See Figure above.) Step 2. Pull the module out of the chassis. Step 3.
Check to be sure that the connector is completely plugged in before operating the module. NOTE Most module-related problems are due to loose connections. Be sure to check the I/O connection first in the event you have a problem receiving information from the load cells or if the relays do not operate correctly.
The simple wiring diagram above shows how to connect a single load cell to a single channel 1756 1DF module. Note, when connecting the 1756 1DF to a junction box, the sense lines would be connected to +Sen and –Sen Connections in the diagram. The solid state relays used in the 1756 nDF require a 2mA minimum load. When switching a light load with a solid state relay across the line, you must look at the rated dropout current of the load. If it is less than 2mA it may not turn off.
Chapter 4 Configuration ●●●●● Chapter 4 covers the settings used to prepare the controller for calibration and operation. The Setup procedures require Allen-Bradley’s RS Logix 5000, Allen-Bradley RSLinx™ or RSLinx™ Lite. Power Check To make or change settings, there must be power to both the PLC and the module. Verify that the LEDs are lit for normal operation. Module LEDs LEDs Scale Data LEDs Flashing Green Dispenser/Filler is active (on) Steady Green Running (Normal) Steady Red Device Failure.
Dot Matrix Display Four 3x7 dot matrix displays provide individual status on the relays assigned to each weigh scale channel. The three operational states are defined in the following table.
Step 4. Click in the Name text field. Enter a descriptive name for the module. We used HI1756DF for example. Click in the Description box and enter a description if desired. Insure the slot selection is correct. Step 5. If you have a dual channel module, you should click on the “Change” button and select “Two Channel”.
Step 6. On the Connection tab, set the RPI time to 10.0 ms. The remaining tabs will allow the user to fill out the parameter settings for the module.
Linking the PLC with the HI 1756-nDF Dispenser Filler Control Module To set parameters for the weigh scale module, you must establish communications with a ControlLogix PLC. Follow the steps below to set up the communication link without using the AOP. You will need a new or open RS Logix® 5000 project. For instructions, see your RS LOGIX 5000 manual. Step 1. Look for a list of folders on the left side of the screen. Scroll to and select the I/O Config folder, which will open a menu. Step 2.
Overview of Operation The HI 1756 nDF will calculate Gross weight, Net weight, & Flow Rate (FR) outputs simultaneously, as shown in the simplified block diagram below.
Weight Filter Delay (ms) Quality Comment 0 0 Poor, no filtering 1 100 Fair, narrow filter window 2 270 – 2000 Excellent, Waversaver® filter selection Note: ADC delay in not included in delay calculation as this delay is consistent regardless of filter mode selected. In addition a second filtering stage can be enabled which averages the current and preceding ADC samples. This is a simple method to remove harmonics from the data stream without introducing delay into the data path.
The flow rate is affected by the composition of the material, for example liquids will provide a linear flow rate as they are dispensed compared to “lumpy” material which due to product binding and asymmetric shape will cause short term disturbances in the weigh reading and subsequent flow rate calculations. To provide a reliable flow rate reading with a range of materials the following four flows rate filters are provided, see the “flow Rate Filter” parameter in the table below.
Parameter Default Flow Rate Filter 1 Description The weight data used in the flow rate calculation can be derived from one of four filters. The selection is based on a compromise between the response time required and the inherent noise within the measured value.
point. The preact value can be positive or negative, to compensate for in flight material, to ensure the set point operates at the correct absolute net weight value. The relay’s initial state, OPEN or CLOSED, is determined by mode of operation. The dynamic state of the relay during a fill cycle depends on the comparison of the current net weight to the calculated set point value. The set point value is based on three parameters the target weight, the preact weight, and the mode of operation.
Ref# Relay Mode Description of Relay Operation 1 Sequential Relay Operation 2 Parallel Relay Operation Relay RA is set to the CLOSED state, and relay RB set to the OPEN state at the beginning of the fill cycle. When the absolute net weight value is greater than or equal to the set point SPA relay RA is OPEN and relay RB is CLOSED, when the absolute net weight value is greater than or equal to set point SPB both relays are OPEN. Automatic refill not allowed.
Overview of Auto-Preact Function The auto_preact function predicts the required preact weight to ensure that the weight on the scale at the end of a fill cycle is equal to the desired target weight, after all the inflight material has cleared the physical pathways and settled on to the scale. The setpoint weight is the weight at which the relay is closed, and is calculated by subtracting the preact weight from the desired target weight.
Parameter Default Description p gain 0.05 Proportional error term gain value. Additional percentage of the error added to the amount of correction the module is making. i gain 0.65 Integral error term gain value. The percentage of the error being applied to the auto preact. frc tolerance 2.0 The minimum peak to peak percentage difference in flow rate used to detect a stable flow rate. Values below this are ignored fast adjust 1.
cycle to when the relay changes state, and the capture time is the time from when the relay changes state to when a weight value is taken (assumed to be available) to update the auto_preact function. The following status values help to ensure the system timing is configured correctly. A full picture of the cycle can be calculated by externally monitoring the time from the start of the fill cycle to when the cycle ends.
Assembly Object Instances 1. Input Assembly (from 1756 nDF to PLC). An area where the 1756 nDF module writes its data such as Net, Gross, FR to the PLC. The input assembly is an array of 16 floats, with 8 devoted to the 1st channel and the next 8 devoted to the 2nd channel. The rate of change and the gross and net weights are always visible in the input table, for each weigh scale. Input table offset 0 1 2 3 4 5 6 7 Content Command (echoes the command given in the Output Table.
Default output table formats Output table offset 0 1 2 3 4 5 6 7 Content Command Parameter Number (used by read and write commands) Parameter Value (used by write command and set relay command) *spare* Output Assembly for Weigh Scale 1 Output table offset 8 9 10 11 12 13 14 15 Content Command Parameter Number (used by read and write commands) Parameter Value (used by write command and set relay command) *spare* Output Assembly for Weigh Scale 2 (for HI 1756 2DF only) Commands to the PLC related to wei
First Word – 0: Command Number The default output table enables single parameters and functions to be modified. The majority of the commands are intended to be used once and require a NOCMD or a different command to be sent if the same command is to be repeated. However, there are special function commands which can be repeated and each time the command is read the appropriate action is taken. These special commands are denoted using a “**” in the following table.
command SETRELAY** Number 7.0 description Default setting is 0, both relays OPEN Manual mode for testing relay operation. 0 = both relays RB and RA are OPEN 1 = relay RB is OPEN, and relay RA is CLOSED 2 = relay RB is CLOSED, and relay RA is OPEN 3 = both relays RB and RA are CLOSED The manual relay setting can be overridden by the STARTANDTARE and the STARTNOTARE commands. WARNING: Forcing the relay may cause damage or personal injury.
Command Return or Error Codes Commands always return the command word and command status. The command status word may include the following codes: return codes #Value SUCCESS NOTALLOWED 0.0 OUTOFTOLERANCE INDEXOUTOFRANGE NOSUCHCMD C2FAILNODEVS C2FAILCAPEQ HARDCALFAILCOUNTS -1.0 -3.0 -4.0 -5.0 -6.0 -7.0 -8.0 -9.0 NOSUCHPARAM description Pass Bad state for command, tried to run to start a cycle while refilling or trying to refill while running a dispense/fill cycle.
Parameter Name Waversaver Parameter Number 4.0 Parameter Default 3 Description Waversaver Options Ref# 0 1 2 3 4 5 Zero Track enable Weight Filter 5.0 0 6.0 2 Frequency (Hz) OFF 7.50 3.50 1.00 0.50 0.25 Enables the auto zero tolerance function when 1. Weight filter selections See Overview of Weight Calculation for selection details. Ref# 0 1 2 Refill mode 7.0 0 Weight Update Rate 8.0 0 Material 9.0 0 Flow Rate filter 10.
Parameter Name Flow Rate Units Parameter Number 11.0 Parameter Default 0 Description Flow Rate Period 12.0 0 steady period 13.0 128 Used to set when the flow rate calculation is active. When set to 0 (default), the flow rate calculation continuously runs, and when set to 1 the flow rate calculation is run only during a fill cycle. When this value is set to zero the steady weight algorithm is bypassed and the weight data value is used directly.
Parameter Name capture averages Parameter Number 15.0 Parameter Default 3 Description This sets the number of fill/dispense cycles to average the target error values and flow rate values to provide the auto_preact value. The minimum value = 1, and the maximum value = 100 Parameter 1 Channel Active Enables or disables the weigh channel.
Parameter 4 Waversaver Chapter one provides a detailed description of WAVERSAVER’s function and purpose. In short, WAVERSAVER helps to mitigate the effects of vibratory forces, allowing the HI 1756 nDF to distinguish between actual weight data and mechanical noise in the signals the load cell sends. WAVERSAVER can be configured to ignore noise with frequencies as low as 0.25 Hz. High values allow faster readings, while the lower values raise the degree of filtration. 7.
Parameter 12 Flow Rate Period Used to set when the flow rate calculation is active. When set to 0 (default), the flow rate calculation continuously runs, and when set to 1 the flow rate calculation is run only during a fill/dispense cycle Parameter 13 steady period This parameter sets the number of samples that are processed to provide the weight output. The valid array sizes are 0, 16, 32, 64, and 128 (default).
Parameter Name Capacity Parameter Number 24.0 Parameter Default 5000.0 Flow Rate Time Base 25.0 4.0 26.0 35 ● ● ● ● ● Description When the gross weight is greater than the programmed capacity value the ERROROVERCAPACITY status bit is set. This status bit is reset whenever the gross weight is below programmed capacity value. Period of time over which changes in weight are used to calculate the flow rate. Unit of time is in seconds. Reserved Variation 27.
Parameter Name FRC Tolerance Parameter Number 34.0 Parameter Default 2.0 Fast Adjust 35.0 1.0 Description Percentage changes in the flow rate changes below this value are ignored. Setting this value to 0.0 disables portions of the auto_preact calculation related to flow rate, and resets all the flow rate terms.
Parameter 23 Stop refill weight Weight at which a refill cycle will automatically stop Value must be greater than 0.0 (default) and equal to or less than the stop refill weight 4000.0 (default) Parameter 24 Capacity When the gross weight is greater than the programmed capacity value the ERROROVERCAPACITY status bit is set. This status bit is reset whenever the gross weight is below programmed capacity value.
Parameter 32 p gain Gain value used to scale the proportional error term. The proportional error term is generated by scaling the difference between the programmed target weight and the final weight value measured on the scale at the end of the last fill/dispense cycle. The larger the p_gain value, the faster the loop will compensate for a constant step change in the process but the larger the error will be for random fluctuations in the process. The p_gain value can be programmed to a maximum value of 1.
Parameter Name Steady Time Parameter Number 60.0 Description Cycle Time 61.0 Time form the start to the end of the fill/dispense cycle Unit of time is in seconds. Stable Time 62.0 Time from the start of the fill cycle to the flow rate becoming stable. Unit of time is in seconds. Fast Setpoint Time 63.0 Time from the start of the fill cycle to when the relay on the fast channel (relay A) changes state. SlowSetpoint Time 64.
Commands for weigh scale 2 from the PLC, output table offset 8 – 15, are only valid for HI 1756 2DF modules. For the HI 1756 1DF modules this portion of the dynamic output table will be ignored. Status Word The “status word” is a bit encoded value within the integer number.
Integrated Technician Return Values Table These numbers are floating point equivalent to hex numbers. Return Value INSTANCE_VSENSE {XE “INSTANCE IT Return Values} INSTANCE_DVM_COMBINED REAL 54.0 4150.0 INSTANCE_IREF_WEIGHT 8246.0 INSTANCE_JBOX_MV/V1 12342.0 INSTANCE_JBOX_MV/V2 16438.0 INSTANCE_JBOX_MV/V3 20534.0 INSTANCE_JBOX_MV/V4 INSTANCE_JBOX_REF_WEIGHT INSTANCE_JBOX_WEIGHT1 INSTANCE_JBOX_WEIGHT2 INSTANCE_JBOX_WEIGHT3 INSTANCE_JBOX_WEIGHT4 24630.0 28726.0 32822.0 36918.0 41014.0 45110.
There are two read and write calibration commands, each consisting of 6 float values (24 bytes) as follows: Command (see the list of commands below) Channel (0 or 1) Reserved CalZeroCounts CalLowCounts CalibK 1. Command 1.0: Read calibration values. Use this command to read the rate and weight calibration values. 2. Command 129.0: Write weight calibration. Use this command to set the 3 weight calibration values: zero counts, low counts, and CalibK (weight per A/D count).
Chapter 5 Calibration ●●●●● The Dispenser-Filler Module should be calibrated before use. We also recommend that you verify the calibration periodically or when not in use for extended periods of time. Users and service personnel should be familiar with the procedures in this chapter before installing or operating the Dispenser-Filler Module. NOTE Do not perform a calibration on either channel while an application is in operation.
For example, a 2mV/V load cell/point will respond with a maximum of 10 mVDC at the load sensor’s full weight capacity, which includes the weight of the vessel and the weight of the product as measured by the load cell/point. Thus, if the load cell/point weight capacity is rated at 1000 pounds, the load cell/point will be 10 mVDC at 1000 pounds, 7.5 mVDC at 750 pounds, 5 mVDC at 500 pounds and so on. A zero reference point will vary from system to system depending on the “Dead Load” of the vessel.
“THE BUTTON” C2 Calibration Step 1. Be sure that the parameters have been setup for your weighing process. (See Chapter 4, Setup) Step 2. Open the front door of the module. Step 3. Press and hold “The Button” until the desired Scale LED turns green, and release, scale led will start flashing. “THE BUTTON” location on the 1756 nDF Press and release “The Button” again to perform the C2 Calibration. Once the calibration is completed the Scale LED returns to a steady green.
Hard Calibration Hard Calibration is the traditional method of calibration using test weights. Hardy recommends that the test weights total 80 to 100% of the load capacity. Step 1. Empty your hopper, if possible. Step 2. Have or set your Cal Low Reference weight to 0, or if you have product in the hopper use that as your reference setting. Step 3. Send the Cal Low command by setting the Output table word 0 to the command number 100.0. Step 4. Monitor the Input table word 0 & 1.
Chapter 6 Troubleshooting ●●●●● Chapter 6 provides procedures for troubleshooting the electrical, mechanical and firmware elements of the HI 1756 nDF and for using Hardy’s Integrated Technician (IT®) software utility to isolate problems. Flow charts provide troubleshooting procedures for the dispenser/filler, load cells, and cabling.
insure proper balance. Motors can account for this problem. Piping should not apply any appreciable force on the scale. mV/V DC voltage signals are between 0-15 millivolts. Overloads and negative millivolt readings are not shown as actual readings but 15.3 for over voltage and -0.1 for negative voltage. You will need to use a multi-meter with a 200 or 300 mVDC range to view the out-of-range voltages. Millivolt/volt equals the output from a load cell per each volt of excitation.
A1 - Guidelines for Instabilities on Formerly Operating System A1 UNSTABLE RATE CONTROLLER Disconnect external signal cables and shields Monitor the reading for stability Yes STABLE? Reconnect signal cables one at a time No Problem could be in the instrument. Contact Hardy Customer Support Monitor the display for stability If installing any cable causes unstable readings REVIEW TROUBLESHOOTING SECTION B: B1.1-B1.
B - Guidelines for Instabilities on Formerly Operating Systems (Cont’d) B Check for Electrical Stability OK? No B1 No B2 No B3 Yes Check for Mechanical Stability OK? Yes Check Configuration settings for stability OK? Yes Go To A Stability 50 ● ● ● ● ● Chapter 6
B1 - Guidelines for Instabilities on Formerly Operating Systems (Cont’d) B1 B1.1 B1.2 Chapter 6 Cable Cuts or breaks in the load cell insulation allow moisture to wick into the cable and load points. This can setup stray capacitance charges and allow ground currents to exist. This could create a highly intermittent situation. Vessel, Fill and discharge piping Ground all to a common point to eliminate electrical differences in potential and static build-up. B1.
B1 - Guidelines for Instabilities on Formerly Operating Systems (Cont’d) B1 B2 OK? No Yes B3 OK? Yes No Vessel When inspecting a vessel, the Center of Gravity (COG) should be low and centered equally over all the load cells. Insure the load is directly over or under the load point to avoid side-loading and that there isn’t any side loading from piping or external forces. Install flexures on all piping to insure a free floating vessel.
F - Verify Individual Load Cell Millivolt Readings Testing an individual load cell signal output requires an IT Summing Junction box or millivolt meter. Use the load cell certificate to verify the millivolt per volt (mV/V) rating: Example: 3mV/V load cells produce approximately 15mV at full load. That is 5 volts excitation x 3 mV/V. At a scale capacity of 1,000 lbs. with 100 lbs. of deadload when empty, the load point mV reading should measure 1.5mV.
G - Calibration Failed: Not Enough Counts Between ZERO and SPAN This error only occurs at the SPAN parameter. You may ZERO out straps or chains and other temporary calibration equipment that held or hoisted test weights. Zeroing the temporary weight does not effect the calibration. To zero out chains or other temporary calibration equipment. Re-run the cal lo routine with an empty scale. The calibration slope will remain, only the zero reference point is adjusted.
H - Mechanical Inspection H H2 Mechanically isolated from ladders and connecting structures? H3 Are the load cells properly mounted? 1) 2) 3) 4) H4 Are check rods installed to dampen vessel movement? 1) Protects the load cells from overload and impact forces 2) Limits the movement of the vessel 3) Rods must be loose and not interact with the vessel H5 Are cables routed properly? Housekeeping J Chapter 6 (a) You weigh the output valve, not the input valve (b) Does the weight scale see all the p
J - Electrical Inspection J DO NOT POWER UP THE CONTROLLER UNTIL INPUT VOLTAGES CAN BE VERIFIED 1) 2) 3) 4) J1 Verify the proper voltage level has been supplied Apply power to the J2 J3 controller only if supply voltage is correct Does the scale reflect a weight change? Verify the proper input power, AC or DC, is properly installed Use a meter to verify neutral, ground and hot are correct Isolated from SCR and motor control circuits Use a Common earth ground.
K - Load Sharing and Load Sensor Checkout 57 ● ● ● ● ● Chapter 6
Erratic Flow Rates This section explains how to resolve problems relating to Flow Rate (FR) and weight calibration. Flow Rate calculations 1. Verify the scale calibration using test weights. A poor weight calibration will produce poor rate calculations. 2. Follow the weight troubleshooting flow charts and correct any equipment binding, rubbing, and piping problems. 3.
UNIVERSAL JOINT OR HOSE USE SYMMETRIC BEAM LOADED THROUGH SHEAR CENTER TO AVOID TWIST WITH LOAD JUNCTION BOX Controller INTERMEDIATE SUPPORT FRAME FULLY CONSTRAINED LATERALLY WITH STAY RODS BIN ACTIVATOR NON METALLIC EXPANSION ASSEMBLY OR HOSE The load cell/point uses the 5 volts DC excitation voltage generated by the HI 1756 nDF. It generates a millivolt output proportional to the weight on the scale (0-10mV DC for 2mV/V load cells/points or 0-15mV DC for 3mV/V load cells/points).
Warning Do not install your HI 215IT summing board in areas susceptible to high vibrations. The relays on the board can chatter and affect your weight readings and the vibration can crystallize the solder joints. To determine if an instrument or cabling problem exists, verify the basic operation of the system by performing the following system checks. Stability Test The Stability test lets you check the A/D Raw count and average. With the IT option, it tests and reports for each load cell.
Warranty A warranty problem may be handled by returning the product to the factory for repair or replacement under warranty. In the event you experience a problem with this instrument contact your local Hardy Representative or the Hardy Process Solutions Service Center to determine if the problem is covered under warranty. Web Address: http://www.hardysolutions.com/service/terms.php Ordering Replacement Parts Contact the Hardy Process Solutions Sales Department to order replacement parts and option boards.
Index A Alarm LEDs, 11 AOP, 12 Applications, 2 Approvals, 6 Auto Zero tolerance, 36 Automatic refill, 3 Averages, 6 Flow rate filter, 33 Flow rate period, 34 Flow rate time base, 37 Flow rate units, 33 H B Hard Calibration, 46 HARDCALFAILCOUNTS, 29 HI 215IT JBox Wiring, 10 HI 215IT Series Junction Box, 2 Humidity, 6 Backplane Input Voltage / Current Load / Power Load, 5 C C2 calibration, 44 C2 Calibration, 2 C2 Calibration Input, 5 C2 Calibration Output, 5 C2FAILCAPEQ, 29 C2FAILNODEVS, 29 Cable length
O Operating Temperature, 6 Overview of Auto-Preact Function, 22 Overview of Flow Rate Control, 17 Overview of Operation, 16 Overview of Relay Operation, 19 Overview of Weight Calculation, 16 P pin-out diagram, 8 PLC connection, 15 Preact Value, 20 R Refill mode, 33 Relay Mode Considerations, 21 relays, 1 Removing the Module, 8 Resolution, 5 RPI value, 15 RS Logix 5000, 11 RSLinx, 11 S sample programs, 45, 46 Span Weight, 36 Stability tests, 60 Start refill weight, 36 Status LEDs, 11 Stop refill weight, 3
9440 Carroll Park Drive, Suite 150, San Diego, CA 92121 Telephone: 1-800-821-5831 FAX: (858) 278-6700 Web Address: http://www.hardysolutions.com Hardy Process Solutions Document Number: 0596-0322-01 Revision B Copyright April 2012, Hardy Process Solutions, All Rights Reserved. Printed in the U.S.A.
