Watson & Sons 520DUN user manual 24.1 RS485 command strings, Command Parameters Meaning

Page 76

24.1 RS485 command strings

Command

Parameters

Meaning

 

 

 

nCA

-

Clear LCD display

nCH

-

Home the cursor

 

 

Set and run one dose of xxxxxxxxxx

nDO

xxxxxxxxxx<,yyyyy>

tacho pulses, with optional drip of yyyyy

 

 

(maximum 11,000) tacho pulses. See

 

 

note 1

nTC

-

Clear the cumulative tachometer count

nSP

xxx.x

Set speed to xxx.x rpm

nSI

-

Increment speed by 1rpm

nSD

-

Decrement speed by 1rpm

nGO

-

Start running

nST

-

Stop running

nRC

-

Change direction

nRR

-

Set direction to clockwise

nRL

-

Set direction to counter-clockwise

nRS

-

Return status. See note 2

nRT

-

Return the cumulative tachometer count

 

[line 1]~[line 2]~

Display text on 1 to 4 lines with ~ as

nW

the line delimiter. Terminated by the @

[line 3]~[line 4]@

 

character. See note 3

 

 

nZY

-

Return 0 for stopped or 1 for running

 

 

 

Note 1: The correlation between tachometer pulses and motor rotation is fixed and provides a measurable and absolute way of monitoring the number of rev- olutions of the gearbox output shaft - 10,982 pulses per revolution. This in turn allows the count to be equated to the amount of material dispensed - assuming that the pumphead type and tube size are known.

Note 2: The status is returned to the sender in the following format: [pump type] [ml/rev] [pumphead] [tube size] [speed] [CW/CCW] P/N [pump number] [tacho count] [0/1 (stopped/running)] !

For example: 520Du 15.84 520R 9.6MM 220.0 CW P/N 1 123456789 1 !

Note 3: If the pump speed is changed subsequently, the pump must display the screen shown here (example figures only) for 4 seconds before reverting to the custom display. 1 to 4 lines of text can be written with ~

as the line delimiter and @ as the message end.

i.e., 1W520Du@ and 1W520Du~@ are both valid commands.

Note 4: In all cases 'n' can be any number from 1 to 32 inclusive, and by excep- tion the # symbol can be used as an all-drives command; but not with the RS, RT or ZY commands, as the results would be indeterminate.

Watson-Marlow 520DuN IP66/NEMA 4X User Manual

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Contents Contents Watson-Marlow 520DuN IP66/NEMA 4X pumpsPublication history 104 Decontamination certificate 105 Declaration of conformity Declaration of incorporationFive year warranty Cased pumps, 620 cased pumps and 720 cased pumpsConditions ExceptionsWhen you unpack your pump Packaging disposalInspection Components supplied 520DuN pump, IP66 Nema 4X modelsInformation for returning pumps StorageHow they work Peristaltic pumps an overviewSuitable applications Safety notes Page Pump specifications Remote control 520DuN, IP66 Nema 4X modelManual control Analogue controlIP Ingress Protection and Nema definitions NemaPump specifications Standards HarmonisedStandards OtherDimensions 520DuN IP66/NEMA 4X model Unit weightsGeneral recommendations Good pump installation practiceDo’s and do not’s Page Connecting this product to a power supply Page Page Switching the pump on for the first time Start-up check listFirst-time start-up defaults Language Analogue inputSpeed User trimPump is now ready to operate Keypad functions in manual mode Manual operationPage Page Keypad beep Keypad lockManual operation and remote digital inputs and outputs Main menu Keypad functions in menu screensMain menu entry PIN-secure process protection Calibrate Head and tube TubeCalibration dose Page Setup Setup menuTrim Analogue Input 1 speed Program Trim Scaling strokeDisplay AlternativelyPump number BaudStop bits 18.7 Xon/XoffFlow units Run time General alarm OutputsParameters are Run / stopPage Remote stop Page Auto-restart Set maximum speed Backlight18.15 ROM LanguageDefaults BeepSecurity code Pin out details ExitMemoDose To dispense a master doseChanging dosing speed To repeat the doseExit 22.1 520N module removal and replacement Automatic control wiringTo remove the 520N watertight module To replace the 520N watertight module Wiring up Page Do not strap the control and mains power cables together Speed analogue input Scaling analogue input Speed analogue output Tachometer frequency outputRun / stop input SwitchDirection input Tube monitor 520N module Wire colour Auto / manual toggle inputMemoDose input Leak detection inputSupply voltages Outputs 1, 2, 3Important pump status outputs 22.14 RS485 input DC Voltage Max load Typical useHow to get into auto operation Automatic control and operationHow to get out of auto operation Emergency stop How to get into network operation Network control and operationHow to get out of network operation 24.1 RS485 command strings Command Parameters MeaningTroubleshooting Error codes Error condition Suggested actionDrive maintenance Drive sparesIdentification of parts 520R, 520R2 and 520RE pumpheads520REL/520REM/520REH Pumphead position, removal and replacement To reposition the trackRotor replacement Rotor removal29 520R, 520R2 and 520RE installation Opening the pumphead guard29.2 520R and 520R2 tube loading 29.3 520RE fitting the drain port 29.4 520RE Element loading 520REL Pressures Up to 2 bar 30 psiPressures Up to 4 bar 60 psi Up to 7 bar 100 psi 2mm and 6.4mm Industrial SanitaryPage Industrial quick-release connectors Sanitary 3⁄4in mini-Tri-clamp connectors29.5 520RE Element connection 30 520R, 520R2 and 520RE maintenance General guide to cleaning with solvents 31 520R, 520R2 and 520RE rotor settingsChemical Cleaning precautions Pumphead spares 520R/520R2 520REL/520REM/520REHPumping conditions Flow rates520R and 520R2 520RE Continuous tubing 220rpmElements Performance curves Page Page Page Tubing and element part numbers 6mm wall tubing for 520R pumpheads4mm wall tubing for 520R2 pumpheads Inch Marprene Bioprene Pumpsil913.A008.024 Inch Chem-Sure Sta-PureSanitary Inch Bioprene TM Sta-Pure 4mm wall elements for 520RE pumpheads102 Accessory Description Part code Pump Compatibility 35 520 series pumping accessories103 Publication history Trademarks104 RGA number Signature Your position Date Decontamination certificate105

520DUN specifications

Watson & Sons 520DUN is a state-of-the-art model that has garnered attention for its exceptional performance and innovative technologies. Designed for agricultural applications, this machine combines durability, efficiency, and ease of use, catering to the needs of modern farmers.

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Safety is also paramount in the design of the 520DUN. It features reinforced safety measures, including roll-over protection systems and visibility enhancements, ensuring operator safety during operations.

In summary, the Watson & Sons 520DUN represents the pinnacle of agricultural machinery with its powerful engine, remarkable load capacity, precision technology, and ergonomic design. It is tailored for those who seek reliability and efficiency in their agricultural endeavors, making it a noteworthy choice in today's competitive market.
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