Contrex ML-TRIM User Manual

iML–TrimUser Manual0001-0127Revision C

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3 - 66Table 3-35 ASCII to Binary@ 1000000 ' 1100000A 1000001 a 1100001B 1000010 b 1100010C 1000011 c 1100011D 1000100 d 1100100E 1000101 e

3 - 67Table 3-36 Binary to Monitor ParametersMV-50 MV-51 MV-52 MV-53 MV-54

3 - 68—NOTES—

4 - 1TroubleshootingDiagnosticsTroubleshootingPROM Chip Replacement

4 - 2

4 - 3DIAGNOSTICSThis section describes how to use the diagnostic routines to verify that the ML–Trim isoperating properly as well as to identify any M

4 - 4 Diagnostic IndicatorTest Number

4 - 5RAM Test #1 - To Test Random Access MemoryClear/4 will automatically default to RAM Test #1. The diagnosticindicator and the number “1” will be

4 - 6Display Test #2 - To Test the LED Display Panel SegmentsPress the “UP” or “DOWN” scroll keys until the diagnostic indicator andthe number “2” are

4 - 7Keypad Test #3 - To Test the KeypadPress the “UP” or “DOWN” scroll keys until the diagnostic indicator andthe number “3” are visible on the left

1 - 3INTRODUCING THE ML–TRIMThe ML–Trim is a highly accurate, digital, motor controller. It has advanced embeddedsoftware that is capable of solving

4 - 8Input Test #4 - To Test the Logic InputsPress the “UP” or “DOWN” scroll keys until the diagnostic indicator andthe number “4” are visible on the

4 - 9Output Test #5 - To Test the Logic OutputsPress the “UP” or “DOWN” scroll keys until the diagnostic indicator andthe number “5” are visible on th

4 - 10

4 - 11TROUBLESHOOTINGThis section contains four troubleshooting flowcharts to help you resolve four possiblesystem operating problems. The four scena

4 - 12Figure 4-1 Motor Does Not Stop FlowchartYesMotor Does Not StopMP-53 =1000 (F–Stop)J5, Pin 6 isshorted to commonRemove wire at J2, Pin 1Measure

4 - 13MP-50 =0010(Master)MP-50 =0100(Follower)MP-50 =0001(Direct)YesMotor Does Not RunProblem CorrectedYesYesNoNoNoNoSetpoint is correct ?NoYesMP-45 i

4 - 14MP-50 =0010(Master)MP-50 =0100(Follower)MP-50 =0001(Direct)YesMotor Runs at Wrong SpeedProblem CorrectedYesYesNoNoNoNoSetpointis correct ?NoYesM

4 - 15Change CP-61 to “1”and Run in Direct ModeCheck DriveCalibrationNoMotor Runs UnstableMotor StillUnstable ?NoYesProblem CorrectedRepeatTuningProce

4 - 16PROM CHIP REPLACEMENTThe PROM (Programmable Read Only Memory) chip is the software for the ML–Trim.See Figure 4-5 for the PROM's location o

4 - 17Figure 4-5 PROM LocationBeveled CornerInsert Tool HereInsert Tool Here

1 - 4EXAMPLES OF ML–TRIMAPPLICATIONSFigure 1-1 is an example of a Master mode of operation for a pump application. Thescaling format allows the opera

4 - 18—NOTES—

Glossary - 1Glossary

Glossary - 2

Glossary - 3GLOSSARYAcceleration/Deceleration Acceleration Time (CP-16) and Deceleration Time (CP-17)control the rate of speed change in response to s

Glossary - 4the Follower mode, Acceleration/Deceleration, Tuning,Alarms, and Jog. The ML–Trim comes factory pre-loadedwith a complete set of default

Glossary - 5Drive Enable Drive Enable activates the motor drive based on theRamped Reference (MP-46) and the feedback. TheRamped Reference is the cal

Glossary - 6Input Test Tests the Logic Inputs.Inputs AC Power (J3 pins 1, 2, 3)I/O Power (J5 pins 1,2)Lead Frequency (J5 pins 3, 5)Feedback Frequency

Glossary - 7Master Mode A stand-alone control of a single motor. The scaling formatallows the operator to enter a setpoint in EngineeringUnits. The

Glossary - 8Output Monitoring Speed Command Output (MP-47)Logic Outputs (MP-56)Output Test Tests the Logic Outputs.Outputs Speed Command Out (J2 pins

Glossary - 9Tuning Tuning stabilizes speed error differences between thesetpoint and feedback.Ring Kits Ring Kits are flange motor mounted sensors tha

1 - 5Figure 1-2 is an example of the Follower mode of operation in a pump application. Thescaling format allows the operator to enter the setpoint as

Glossary - 10Scroll Up/Down Keys These keys change the active setpoint value even if theactive setpoint is not displayed in the LED display.Each time

AppendicesAppendix A - ML-Trim SpecificationsAppendix B - FormulasAppendix C - Parameter Summary -Numeric Quick ReferenceAppendix D - Control Paramete

A-1APPENDIX A: ML–TRIM SPECIFICATIONSAccuracy: .01% Set SpeedResponse: 10 millisecond control loop updateTuning: Separately adjustable Gain, Integral

A-2Status Outputs: Open-Collector Driver (ULN2003)(50 VDC max, 200 mA continuous, 500 mA peak)Optically IsolatedDrive EnableAlarmSpeed Command: 0 to 1

B - 1APPENDIX B: FORMULASUse the following formulas to calculate Speed Control:MASTER MODEGeneralHZRPMSetpointMaster = RPMFeedbackE.U.Master

B - 2—NOTES—

C - 1APPENDIX C: PARAMETER SUMMARY -NUMERIC QUICK REFERENCECP-01 MASTER SETPOINT 1The Engineering Units value that you want your system to operate at

C - 2CP-06 DIRECT SETPOINTUse the Direct Setpoint (CP-06) to set the drive output that is used when the ML–Trim is in theDirect Mode of operation. Di

C - 3CP-15 SCALED ERROR ALARMThe Scaled Error Alarm (CP-15) is the RPM deviation between the scaled reference and thefeedback that will activate the A

1 - 6—NOTES—

C - 4CP-31 PPR FEEDBACKPPR Feedback (CP-31) is the number of gear teeth or number of encoder lines on the Followerfeedback sensor per revolution (puls

C - 5MP-43 FEEDBACK FREQUENCYThe Feedback Frequency (MP-43) displays the frequency of the Feedback Frequency Input (J5pin 4) in units of hertz (pu

C - 6MP-47 SPEED COMMAND OUTPUTThe Speed Command Output (MP-47) displays the level of calibrated full scale analog output tothe motor drive (J2 pin 1)

C - 7MP-51 KEYPAD ERRORIf a Control Parameter entry has been rejected, Keypad Error (MP-51) will ascertain the reasonthat it was rejected. The digi

C - 8MP-53 CONTROL STATEControl State (MP-53 ) displays a number “1” to indicate the active control state of the ML–Trim.In the example below, “Run”

C - 9MP-55 LOGIC INPUTS - GROUP BThe Logic Inputs - Group B (MP-55) displays the status of the Master/Follower and SetpointSelect logic inputs. The n

C - 10MP-58 SERIAL COMMUNICATIONS ERRORSerial Communications Error (MP-58) identifies errors in the last transmitted message that wassent to the ML–Tr

C - 11CP-62 INVERSE SCALINGUse Inverse Scaling (CP-61) to select either the Standard or the Inverse setpoint scaling format.Enter “2” for Inverse Scal

C - 12CP-67 DERIVATIVE In systems with a very large inertia, use Derivative (CP-67) to reduce the overshoot from theintegral term. Decrease the value

C - 13CP-73 CONTROL MASKThe Serial Communications can control some of the logic input functions. Enter the number forthe required functions in Contro

2 - 1Installation / SetupMountingWiringInputsOutputsSerial CommunicationsCalibrationMotor Drive SetupML–Trim Calibration

C - 14CP-98 KEYPAD LOCKOUTKeypad Lockout (CP-98) displays the present status of the keypad lockout. When the keypad islocked, then “LOC” is displayed

D - 1APPENDIX D: CONTROL PARAMETERREFERENCEUSERCODE DESCRIPTION MIN MAX DEFAULT RECORD UNITSCP-01 Master Setpoint 1 0000 9999 0000 ENGCP-02 Master Se

D - 2—NOTES—

E - 1APPENDIX E: MONITOR PARAMETERREFERENCECODE DESCRIPTION MIN MAX UNITSMP-40 Tach 0 9999 ENG.MP-41 Lead Frequency 0 9999 HZMP-43 Feedback Frequency

E- 2—NOTES—

F - 1APPENDIX F: ML–TRIM FAX COVER SHEETDate: ______________________Atten: Contrex Technical SupportFax Number: 1-763-424-8734From:Name ____________

F - 2Code# Description DisplayedCode# Description DisplayedMP-52 Alarm StatusMP-53 Control StateMP-54 Logic Inputs-Group AMP-55 Logic Inputs-Grou

G- 1APPENDIX G: WIRING DIAGRAMEXAMPLESDANGERThis diagram is for conceptual purposes only!Use safety equipment.Make wiring connections carefully.Incor

G - 2R-Stop StartK-RArmatureContactorK-RNeutLineF-StopK-FSK-JRunJogK-RK-JK-FSFeedbackFreq.RunJogR-StopF-StopK-JK-JK-JK-FSK-RSpeedCommandOut5V_DICOMLEA

G- 3DANGERThis diagram is for conceptual purposes only!Use safety equipment.Make wiring connections carefully.Incorrect use of equipment or connection

2 - 2Contrex3.60"3.60"4.00"*6.00"4.00"DOOR PANEL(3.65" .03" CUTOUT( CUTOUT3.65" .03" ()* From the r

G - 4Figure G-4 Start/Stop for Non-Regen with Armature ContactorF-Stop StartM1-AUX1ArmatureContactorM1NeutLineFeedback Freq.RunR-StopF-StopSpeedComma

G- 55V_DICOMLEAD_FQFDBK_FQCOMRUNJOGCOMR–STOPF–STOPCOMMST / FOLSETPTCOMV_DODRV_ENALARMCOMUSE COPPER WIRE ONLY. SELECT WIRE SIZEACCORDING TO AMPACITY FO

G - 6—NOTES—

H- 1APPENDIX H: REVISION LOGManualRevisionECONumberRevisionDateCorresponding *Software Rev.Pages Changed1 — 1/981000-7675Rev. 0.8New Manual Release,

H - 2—NOTES—

Warranty - 1WarrantyService PolicyWarranty

Warranty - 2

Warranty - 3SERVICE POLICYContrex, Inc., recognizes that with each saleof its product there are certain productobligations. This document defines th

Warranty - 4WARRANTYContrex, Inc., guarantees this device againstdefects in workmanship and materials for aperiod of one (1) year from the date ofpurc

Index - 1Index

2 - 3MOUNTINGThis section contains instructions for mounting the ML–Trim in the door panel of aNEMA Industrial Electrical enclosure. The ML–Trim is p

Index - 2

Index - 3IndexAAC Power Input (J3 pins 1, 2, 3)..page 2-8Acceleration Time..page C-3, D-1Acceleration/Deceleration..page 3-26, Glossary-3Active Scalin

Index - 4Control Parameters..page 3-7, Glossary-3CP-01..page 3-9, 3-10, 3-11, 3-23, C-1, D-1CP-02..page 3-9, 3-10, 3-11, 3-23, C-1, D-1CP-03..page 3-1

Index - 5Direct Enable..page 3-8, C-10, D-1Direct Mode..page 3-8, Glossary-4Direct Setpoint..page 3-8, C-2, D-1Display Mode Follower..page 3-43, C-11,

Index - 6Use the Setpoint Key..page 3-4Use the Tach Key..page 3-4Use the Up/Down Scroll Keys..page 3-4II/O Power (J5 pins 1,2)..page 2-7InputMonitorin

Index - 7Record of your Password..page 3-6Operation..page 3-3Test..page 4-6, Glossary-6KeysCode Select..page 3-3, Glossary-3Dedicated..page 3-3Numeric

Index - 8MP-00..page C-14, E-1MP-40..page 3-43, C-4, E-1MP-41..page 3-40, C-4, E-1MP-43..page 3-40, C-5, E-1MP-44..page 3-43, C-5, E-1MP-45..page 3-44

Index - 9Input Monitoring..page 3-40Inverse Follower Mode..page 3-24Example..page 3-25Inverse Master Mode..page 3-22Example..page 3-23Jog..page 3-31Ke

Index - 10RAM Test..page 4-4, 4-10, Glossary-9Ramped Error..page C-2, D-1Ramped Reference..page 3-44, C-5, E-1Remote Control of the ML–Trim..page 3-49

Index - 11TestRandom Access Memory..page 4-4The Keypad..page 4-6The LED Display Panel Segments..page 4-5The Logic Inputs..page 4-7The Logic Outputs..p

2 - 4* Use 115 VAC with ML-Trim model # 3200-1931 Use 230 VAC with ML-Trim model # 3200-1932L1* Neut or L2GND/PERS485 SerialCommunications5V_DICOM

Index - 12—NOTES—

2 - 5 WIRINGThis section contains the input, output and serial communications wiring information forthe ML–Trim. Please read this section prior to wi

iiTechnical AssistanceIf you have comments or questions concerning the operation of the ML–Trim, pleasecall us. A member of our Technical Support Sta

2 - 6–NOTES—

2 - 7Figure 2-3 I/O Power / IsolatedFigure 2-4 I/O Power / Non-IsolatedINPUTSNOTE: The installation of this motor control must conform to area an

2 - 8AC Power (J3 pins 1, 2, 3)The ML–Trim model #3200-1931operates on 115 VAC + 15%, 0.1Amp., 50/60 Hz. The ML–Trim model#3200-1932 operates on 230

2 - 9Feedback Frequency(J5 pins 4, 5)The Feedback Frequency is a pulsetrain input that the ML–Trim uses todetermine the speed of the followermotor. F

2 - 10Jog (J5 pins 7, 8)Jog is a maintained input. When Jogis closed, the ML–Trim sends aSpeed Command Out signal to thedrive at the selected jog spe

2 - 11Figure 2-11 F–StopF-Stop (J5 pins 10, 11)F-Stop is a momentary input. Whenit is open, the ML–Trim stopsimmediately (zero RPM) and ignoresthe

2 - 12Figure 2-13 Setpoint SelectSetpoint Select (J5 pins 13, 14)The Master and Follower setpointsare determined by the Setpoint Selectinput combine

2 - 13OUTPUTSNOTE: The installation of this motor control must conform to area and local electricalcodes. See The National Electrical Code (NEC,) Art

2 - 14Alarm (J5 pin 17)By entering alarm Control Parameters, you can establish circumstances under whichthe ML–Trim will alert you to potential opera

2 - 15Figure 2-16 ML–Trim Multidrop InstallationSERIAL COMMUNICATIONSNOTE: The installation of this motor control must conform to area and local ele

iiiDANGERImproper installation cancause severe injury, death ordamage to your system.Integrate this motion controlunit into your system withcaution.Op

2 - 16Figure 2-17 ML–Trim Serial Communications Connections1. Shield only at one end of the cable.2. If you need to terminate the communication line

2 - 17CALIBRATIONCalibration matches the Speed Command analog output of the ML–Trim with theanalog input of the motor drive. Calibration is accomplis

2 - 18MOTOR DRIVE SET UP1) Put the ML–Trim in “R–Stop” by opening the R–Stop input (J5 pins 9, 11).Refer to Installation/Setup: Wiring, Inputs, R–Stop

2 - 19ML–TRIM CALIBRATION1) Make sure that the ML–Trim is still in “R–Stop”. If the ML–Trim is not in“R-Stop”, then put it in “R–Stop” by opening the

2 - 20Continue to gradually increase these increments by ten until you reach “90”.Since there are no acceleration/deceleration ramps in Direct mode, a

3 - 1OperationKeypad OperationKeypad LockoutControl Parameters (CP)Direct ModeMaster ModeFollower ModeInverse Master ModeInverse Follower ModeAccelera

3 - 2

3 - 3KEYPAD OPERATIONThe front panel of the ML–Trim is an easy to use keypad that gives you direct accessto the Parameters (Control Parameters and Mon

3 - 4NumericKeysLedDisplayDedicated KeysUp/DownScroll KeysCode Select KeyParameter Code (2 digits)Parameter Value(up to 4 digits)EnterKeyClearKeyFigur

3 - 5KEYPAD LOCKOUTKeypad Lockout (CP-98) displays the present status of the keypad lockout. When thekeypad is locked, then “LOC” is displayed:Locked

iv

3 - 6Record your numeric Keypad Lockout password here:Please read the “CAUTION” statement on Page 3-5

3 - 7CONTROL PARAMETERSParameters are divided into two classifications; Control Parameters (CP) and MonitorParameters (MP). The numbered code that re

3 - 8Direct ModeIn the Direct mode of operation, the Speed Command output from the ML–Trim that isconnected to the motor drive can be set directly. D

3 - 9Master ModeThe Master, or stand-alone mode of operation, is a single motor operation. In thissimple mode of operation, the entire process is con

3 - 10Table 3-4 Default Master Scaling Control ParametersCP Parameter Name Parameter ValueCP-34 Max RPM Feedback 2000CP-31 PPR Feedback 60CP-20 Mas

3 - 11Table 3-6 Entering Master Setpoint Control ParametersCP Parameter Name Parameter ValueCP-01 Master Setpoint 1 CP-02 Master Setpoint 2Enter the

3 - 12Master Mode ExampleThe following example demonstrates how scaling and setpoint Control Parameters areentered for a typical Master mode of operat

3 - 13Follower ModeThe Follower mode of operation is the most frequently used mode of operation. It is amulti-motor operation in which the entire pro

3 - 14The factory default Control Parameters for Scaling are found on Table 3-8. To modifythese default parameters, refer to Table 3-9. If you are u

3 - 15With your scaling established, you can enter values for Follower Setpoints 1 and 2(CP-03, CP-04). The value that you enter for a setpoint is t

vTable of ContentsIntroduction... 1-1Introducing the ML–Trim ...

3 - 16Follower Mode Examples A and BExample A demonstrates how scaling and setpoint Control Parameters are entered fora typical Follower mode of opera

3 - 17To find Follower Setpoint 1 (CP-03) for Example A:Follower E.U. desired 15Setpoint 1 =________________________________=___=3Lead E.U. operatio

3 - 18Table 3-11 Follower Mode Control Parameters Example ACP Parameter Name Parameter ValueCP-33 Max RPM Lead 1725CP-34 Max RPM Feedback 1800CP-30 P

3 - 19Example B demonstrates how scaling and setpoint Control Parameters are entered fora typical Follower mode of operation that uses a setpoint base

3 - 20To find Follower Setpoint 1 (CP-03) for Example B:Follower E.U. desiredSetpoint 1 =________________________________x 100 (%)Lead E.U. operatio

3 - 21Table 3-12 Follower Mode Control Parameters Example BCP Parameter Name Parameter ValueCP-33 Max RPM Lead 1800CP-34 Max RPM Feedback 1800CP-30 P

3 - 22Inverse Master ModeThe Inverse Master Mode is a variation of the Master Mode. The Inverse Master Modehas an inverted setpoint. If you increase

3 - 23Inverse Master Mode ExampleThe Inverse Master Mode Example demonstrates how scaling and setpoint ControlParameters are entered for a typical Inv

3 - 24Inverse Follower ModeThe Inverse Follower Mode is a variation of the Follower Mode. The Inverse FollowerMode has an inverted setpoint. If you

3 - 25Inverse Follower Mode ExampleThe Inverse Follower Mode Example demonstrates how the scaling and setpointControl Parameters are entered for a typ

viPerformance Monitoring... 3-43Status Monitoring ...

3 - 26Acceleration/DecelerationAcceleration/Deceleration (CP-16 and CP-17) control the rate of speed change inresponse to setpoint changes. These par

3 - 27TuningIf your system is unstable, or the speed error is unacceptable, tuning stabilizes speederror differences between the setpoint and feedback

3 - 28Table 3-22 Entering Master / Follower Tuning Control ParametersCP Parameter Name Parameter ValueCP-65 Gain (Proportional)CP-66 IntegralCP-67 D

3 - 29AlarmsThe Control Parameters for Alarms are identical for both the Master and the Followermodes of operations. By entering values in the Contro

3 - 30Table 3-24 Entering Alarms Control ParametersCP Parameter Name Parameter ValueEnter the RPMs at or below which you want the Alarm output to act

3 - 31JogJog increases the RPMs at the acceleration rate that you specified in Acceleration Time(CP-16) until the Jog Setpoint (CP-05) is achieved. W

3 - 32—NOTES—

3 - 33LOGIC CONTROLThis section addresses the four digital inputs and one digital output that control theML–Trim's operating state.The four digit

3 - 34Logic InputsF–Stop has priority over the other operating states. F–Stop brings the ML–Trim'sSpeed Command output to an immediate Zero.To a

3 - 35Run has the third highest operating priority. Run ramps to the scaled setpoint speed,using the Acceleration Time (CP-16). Run can be activated

viiList of IllustrationsFigure 1-1 ML–Trim Master Mode ... 1-4Figure 1-2 ML–Trim Follower Mo

3 - 36Jog has the least operating priority. Jog ramps to the Jog Setpoint (CP-05), using theAcceleration Time (CP-16). When Jog is terminated, the M

3 - 37Logic OutputDrive Enable activates the motor drive based on the Ramped Reference (MP-46) andthe feedback. The Ramped Reference (MP-46) is the c

3 - 38—NOTES—

3 - 39MONITOR PARAMETERSParameters are divided into two classifications; Control Parameters (CP) and MonitorParameters (MP). The numbered code that r

3 - 40Input MonitoringThese MPs monitor the ML–Trim's inputs.MP-41 LEAD FREQUENCYThe Lead Frequency (MP-41) displays the frequency of the Lea

3 - 41MP-54 LOGIC INPUTS - GROUP AThe Logic Inputs A displays the status of the Run, Jog, R–Stop and F–Stop digitalinputs. The number “1” indicat

3 - 42Output MonitoringThese MPs monitor the ML–Trim's outputs.MP-47 SPEED COMMAND OUTThe Speed Command Out (MP-47) displays the level of cal

3 - 43Performance MonitoringPerformance Monitor Parameters monitor the performance of the ML–Trim and yoursystem. Figure 3-2 is a block diagram of th

3 - 44MP-45 SCALED REFERENCEThe Scaled Reference (MP-45) is the scaled setpoint number converted to hertz. It isthe calculated value that is inpu

3 - 45Status MonitoringThese MPs monitor the status of the ML–Trim's modes of operation and operatingstates.MP-50 ACTIVE SCALING MODEThe digit

viiiList of TablesTable 3-1 Basic Keypad Entry ... 3-4Table 3-2 Default Direct Mode Cont

3 - 46MP-52 ALARM STATUSThe digit that displays a number “1” is the active Alarm. In the example below, “HighSpeed Alarm ” is the active alarm.Lo

3 - 47MP-57 EEPROM STATUSThe Control Parameters are stored in the EEPROM memory chip. EEPROM Status (MP-57)displays the status of the EEPROM memory c

3 - 48—NOTES—

3 - 49SERIAL COMMUNICATIONSThe ML–Trim can interface with a host computer through a RS485 SerialCommunications Interface. This interface allows the h

3 - 50Using Serial CommunicationsThis section describes how to use the Serial Communications. Before you can applythis section, The ML–Trim must be i

3 - 51CP-72 CHARACTER FORMATThe ML–Trim uses three different character formats. Enter the number for the requiredformat, as listed below.1 = 8 Da

3 - 52Communications Software DesignThe ML–Trim Serial Communications Interface uses a polling technique to establish alink with the host computer. W

3 - 53Parameter SendUse the Parameter Send to change any of the ML–Trim's Control Parameters.Table 3-29 Parameter Send - Host TransmissionChara

3 - 54Character 5, 6 - Parameter Number:These characters identify the Control Parameter that you want to change(i.e., “16” = CP-16).Characters 7 throu

3 - 55Character 12 - ETX:Always use the ASCII “ETX” character to terminate the character string.Example of Parameter Send:A new Acceleration Time of 5

1 - 1IntroductionIntroducing the ML–TrimExamples of ML–Trim Applications

3 - 56Table 3-30 Parameter Send - ML–Trim ResponseCharacter # 1 2 3 4 5 6 7 8 9 10 11 12DEV # DEV # ERROR PAR # PAR # DATA DATA DATA DATA DATADESC S

3 - 57Characters 5,6 - Parameter Number:The Control Parameter code is sent back to the host computer from the ML–Trim.Characters 7 through 10 - DATA:T

3 - 58Control Command SendThe Control Command Send allows the host computer to control the operatingfunctions of the ML–Trim that are associated with

3 - 59Characters 5,6 - Parameter Number:These characters should always be “0”.Characters 7 through 8 - DATA:These characters should always be “0”.Char

3 - 60Table 3-32 Control Command Send - ML–Trim ResponseCharacter # 1 2 3 4 5 6 7 8 9 10 11 12DEV # DEV # ERROR PAR # PAR # DATA DATA DATA DATA DATA

3 - 61Characters 5,6 - Parameter Number:These characters will always be “0”.Characters 7 through 10 - DATA:These characters will always be “0”.Charact

3 - 62Data InquiryUse the Data Inquiry to request the current value for Parameters (i.e., ControlParameters or Monitor Parameters).Table 3-33 Data I

3 - 63Characters 5,6 - Parameter Number:This is the Control Parameter code (i.e., enter “16” for CP–16).Characters 7 through 10 - DATA:These character

3 - 64Table 3-34 Data Inquiry - ML–Trim ResponseCharacter # 1 2 3 4 5 6 7 8 9 10 11 12DEV # DEV # ERROR PAR # PAR # DATA DATA DATA DATA DATADESC STX

3 - 65Characters 5,6 - Parameter Number:The Control Parameter code is sent back to the host computer from the ML–Trim.Characters 7 through 10 - DATA:T