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User Guide 

MES 1003 WMS

 

 

 

 

Doc no. 100837-MAN – Rev. E1 – Rev. date 2022-10 

 

   

 

         © Danfoss IXA A/S | Page 24 

4.

 

IXA Modbus TCP/IP 

4.1.

 

Introduction 

 
This chapter explains how to establish and configure communication between the WMS and a controller using the 
Modbus TCP/IP protocol. 
 

4.2.

 

Example  

 
Port number 502 and 1502 

The supported protocol is Modbus TCP/IP ADU consisting of a MBAP header and a PDU, which is the standard default 
format. 
 

ModBus RECV: 

00 01 00 00 00 06

 

00

 01 00 00 00 05 

ModBus SEND: 

00 01 00 00 00 04

 

00

 01 01 00 

Table 11 

 

Bold 

MBAP header 

2 bytes for MBAP transaction id – usually increasing 
2 bytes for MBAP protocol – 00 00 
2 bytes for data to follow 

Italic 

Unit id 

Not used in Modbus TCP/IP 

Underlined 

PDU 

In the above example:  
RECV: Read Coils (01), starting Offset 0 (00 00), 5 coils (00 05) 
SEND:  Read Coils (01), coil values is 01 00 

Table 12: Legend to Table 11 
 

4.3.

 

Exception Answers 

 
If parameters are out of range, not allowed, or unsupported functions are used, then an exception is returned as defined 
by the Modbus standard. The standard defines that the Modbus function is returned with the high bit set followed by an 
exception code. For example, an exception on the Modbus function 0x5 will return 0x85. 
 

Example: 

Attempting to enter Standby mode on a WMS already in Standby mode: 

 

REQ:  

00 05 00 00 00 06

 

00

 05 00 00 00 00 

Write coil (5), address 00 00, value 00 00 

RESP:  

00 05 00 00 00 03

 

00

 85 03 

Exception on write coil (85) – invalid parameter (03) 

Table 13 

 

 

Summary of Contents for MES 1003

Page 1: ...User Guide MES 1003 WMS Doc no 100837 MAN Rev E1 Rev date 2022 10 Danfoss IXA A S Page 1...

Page 2: ...y Examples 13 2 3 Local Control 18 2 4 USB Interface 18 2 4 1 Diagnostics Report 19 2 4 2 Updating Software 20 2 4 3 Save Setup 21 2 4 4 Restore Setup 21 2 4 5 Measurement Log 21 3 Logging 23 3 1 Exam...

Page 3: ...5 3 2 Turbidity Sensor Calibration 40 5 3 3 PAH calibration 44 5 4 Verification mode 48 5 4 1 Activate deactivate verification mode 48 5 4 2 Verification of measurements 50 5 5 Alarms and Troubleshoo...

Page 4: ...on Data Unit CSV Comma Separated Values DHCP Dynamic Host Configuration Protocol EGCS Exhaust Gas Cleaning System EOCR Electrical Over Current Relay LAN Local Area Network LCP Local Control Panel MBAP...

Page 5: ...ater as they interfere with the turbidity measurement Turning the pump on off is controlled by the computer in the WAU Two protection devices are built into to WSU in order to protect the pump and mot...

Page 6: ...ions in case of an error or warning Menu for setting up the system 1 5 Startup Make sure that both the WAU and the SU are connected with the ship s power grid and that the breaker for WMS systems powe...

Page 7: ...immediately For manual setup of the time see 2 2 2 Menu Display Examples 2 User Interfaces 2 1 Local Control Panel The contrast level of the display can be altered by pressing and holding the Status b...

Page 8: ...Display Area 2 1 3 Display Menu Keys B The display menu keys are used for menu access for parameter setup toggling through status display modes during normal operation and viewing fault log data Illus...

Page 9: ...ect Use to access parameter groups or to enable a selection Navigation keys Use the 4 navigation keys to move between items in the menu and toggle between Status views Arrow up Arrow down Arrow left A...

Page 10: ...D The Start Stop key is located at the bottom of the LCP Illustration 8 Start Stop Key Key Function Start Stop Starts stops measurements LED Table 8 Legend to Illustration 8 The Start Stop key starts...

Page 11: ...ration 9 Sensing mode and sensor values Illustration 10 WSU suction pressure status and Warning Situation Illustration 11 Sensing SU temperature status Illustration 12 Non corrected PAH value Status 0...

Page 12: ...stration 14 Submenu 1 Reference to Main Menu Number Illustration 15 Selection Screen 2 1 9 Editing Parameters Changing Parameter Options 1 Enter the desired menu and use the Up and Down navigation key...

Page 13: ...w 1 11 Event Log 1 2 Event Log Status 1 21 Status 1 3 Help 1 4 Reset Alarm 2 1 Auto Start 2 11 Status 2 2 Set Time and Date 2 21 Set Date 2 3 PAH Range 2 31 Set Range 2 4 Display PAH 2 41 Status 3 1 L...

Page 14: ...et Alarm select Reset Alarm See Appendices Appendix 1 Parameter Overview 2 Settings 2 1 Auto start select 2 11 Auto start status 2 2 Set time and date select 2 21 Set Date 2 3 PAH Range select 2 31 Se...

Page 15: ...elect 3 13 LAN Network mask select 3 14 Reboot select 3 15 Sensor Hostname select 3 16 DHCP select 3 17 MAC Address See Appendices Appendix 1 Parameter Overview 5 WMS Info 4 1 Part number read only WA...

Page 16: ...tion 6 3 Turb Calibration 6 4 PAH Calibration See Appendices Appendix 1 Parameter Overview 5 Maintenance 5 1 Local Control status 5 2 Reset Password select Reset Password 5 3 Diagnostics Report select...

Page 17: ...MES 1003 WMS Doc no 100837 MAN Rev E1 Rev date 2022 10 Danfoss IXA A S Page 17 7 Measurement Info 7 Measurement info 7 1 Set Start Date 6 3 Set End Date 7 3 Save Log See Appendices Appendix 1 Paramete...

Page 18: ...he WMS must be started and stopped using command through the Modbus When Local Control is enabled readings from the sensor can still be obtained over Modbus The only difference is that the system can...

Page 19: ...low the instructions on the screen and proceed by pressing OK Illustration 21 Step 1 Illustration 22 Step 2 Illustration 23 Step 3 Illustration 24 Step 4 After successful completion a directory named...

Page 20: ...u on the LCP 3 Select Update Software Illustration 25 Maintenance submenu Proceed through the guide by pressing OK and if the directory is found the software update will begin The update can take seve...

Page 21: ...2 4 4 Restore Setup To Restore Setup 1 Insert USB stick 2 Navigate to the Maintenance sub menu 3 Select Restore Setup The Restore Setup function restores the customizations of the WMS to those found o...

Page 22: ...Illustration 31 Step 2 Illustration 32 Step 3 Illustration 33 Step 4 Illustration 34 Step 5 After successful completion a directory named measurementlog csv will be placed in the root folder of the U...

Page 23: ...15 6 19 8 9999 9999 112 0 110 9 9999 9999 1 2 2019 06 19 14 06 00 1 5 1 151 6 6 9 50 5 25 2 31 2 15 6 19 7 9999 9999 111 9 111 1 9999 9999 1 2 Table 9 Example of Measurement Log Column name Descriptio...

Page 24: ...2 bytes for data to follow Italic Unit id Not used in Modbus TCP IP Underlined PDU In the above example RECV Read Coils 01 starting Offset 0 00 00 5 coils 00 05 SEND Read Coils 01 coil values is 01 0...

Page 25: ...EOCR in WSU 3 is active otherwise OFF Coil 15 Thermal Trip WSU 4 Alarm ON if EOCR in WSU 4 is active otherwise OFF Coil 16 Low Pressure WSU 1 Alarm ON if the pressure transmitter in WSU 1 measures a p...

Page 26: ...Sample Point 3 Disconnected Alarm On when the signal from the pressure transmitter in WSU 3 is lost otherwise OFF Coil 32 Pressure Transmitter Sample Point 4 Disconnected Alarm On when the signal fro...

Page 27: ...ed as 121000341001 Offset 1050 Offset 1099 WMS revision number string e g 1234 represented as 121050341051 Offset 1100 Offset 1149 WMS serial number string e g 1234 represented as 121100341101 Offset...

Page 28: ...n Operating mode Read coil 1 to determine if the sensor is in Standby mode Coil 50 Local Control When set to 0xFF00 Local Control is enabled Cannot be set to 0x0000 an exception will be returned Any o...

Page 29: ...ntially be rather acidic Please make sure to use proper protection for eyes and skin to avoid any direct contact If spilling occurs inside the WAU or SU cabinets please soak up the spilled water and m...

Page 30: ...pump if applicable Every 3 months Crew Go to the WSU and Check for leakages from shaft sealing and from pump cover plate Check condition of pump impeller shaft sealing pump shaft pump cover plate and...

Page 31: ...me content from the system will be spilled ensure draining through the drain valve at the bottom of the chamber Procedure 1 To prevent damaging the pH sensor remove the sensor as described in 5 2 3 2...

Page 32: ...sensor in place See Illustration 36 on which bolts to remove Illustration 36 Removal of the pH sensor for cleaning Be careful not to damage the sensor when it is removed from the measurement chamber...

Page 33: ...th buffer solution If possible mechanical influences on the glass membrane should be avoided For stubborn soiling a very soft brush or a soft sponge can be used carefully For more solid deposits the s...

Page 34: ...salt bridge to remove it 3 Fill the cell with standard cell buffer refill solution to the level shown in the figure below the housing limit 4 Insert the new salt bridge by turning it clockwise Do not...

Page 35: ...formed with buffer solution pH7 and pH4 The selected pH buffer solutions must be with an accuracy of 0 01pH Fresh or newly prepared solutions must be used for each calibration Tools needed for pH cali...

Page 36: ...Switching to calibration mode Wait until sensor LED gets blue Illustration 40 Clean the sensor in distilled water The pH sensor should be cleaned in distilled water Maintenance 6 6 1 Verification Mod...

Page 37: ...ion 42 pH sensor setup for calibration of pH The container with pH buffer solution can be placed on top of the measurement chamber and the pH sensor can be inserted in the buffer solution The setup ca...

Page 38: ...e sensor in pH 4 buffer solution The pH sensor should be immersed in pH 4 buffer solution after the sensor has been cleaned in distilled water Refer to Illustration 42 to see how to setup the pH senso...

Page 39: ...libration of the sensor Press Cancel if the pH calibration should be dismissed Illustration 50 Saving the calibration Wait for the calibration to be saved Illustration 51 pH Calibration saved The cali...

Page 40: ...n calibrating to prevent an incorrect calibration Switch off the power for the WSU pumps close all isolation valves for the WMS system and drain the measurement chamber before starting the turbidity c...

Page 41: ...y value printed on the side of the TTurbCAL and remember the value or write it down for later use Holding the turbidity sensor by hand while calibrating can cause incorrect calibration To prevent this...

Page 42: ...9 Enter reference turbidity Illustration 60 Enter reference turbidity Press OK when the reference turbidity is entered Illustration 61 Enter reference turbidity Illustration 62 Calibrating the turbidi...

Page 43: ...L and should be equal to the TTurbCAL reference turbidity concentration 5 0 5 FNU Illustration 64 Saving the calibration Wait for the calibration to be saved Illustration 65 Calibration saved The cali...

Page 44: ...clean water Incorrect calibration always leads to incorrect measured values Always use a DryCal 0 and DryCal 1 paired with the specific PAH Sensor when calibrating to prevent an incorrect calibration...

Page 45: ...of the DryCAL 0 and remember the value or write it down for later use Clean the optical part of the sensor with clean water using lint free cloth and place it on the DryCAL 0 Illustration 70 Enter Dr...

Page 46: ...on Press OK when the DryCal 0 PAH concentration is entered Illustration 77 Calibrating Wait for the offset calibration to finish After the calibration is performed with DryCal 0 repeat the process usi...

Page 47: ...DryCal 1 concentration and press OK Illustration 80 Calibrating Wait for the scaling calibration to finish Illustration 81 Confirm PAH calibration Press OK to confirm and save the PAH calibration Pre...

Page 48: ...to verify the measurements from all sensors Local Control must be disabled through the LCP Remember to disable Local Control after verification for Modbus control to work 5 4 1 Activate deactivate ver...

Page 49: ...t measurement status windows when the system is in verification mode Deactivate verification mode Illustration 87 Deactivate with Start Stop Press Start Stop on LCP to deactivate verification mode and...

Page 50: ...ion mode as described in 5 4 1 2 Remove the pH sensor from the measuring chamber as described in 5 3 1 3 Clean the pH sensor in distilled water 4 Immerse the sensor in pH buffer solution 4 or 7 5 Veri...

Page 51: ...r as described in 5 2 2 3 Clean the optical part of the PAH sensor with clean water and a lint free cloth 4 Place the DryCal 0 or DryCal 1 on the PAH sensor as shown on in the illustration below 5 Ver...

Page 52: ...he cyclical sampling sequence All stored sensor values for SP2 to be set to 1 1 Defect pump impeller in WSU 2 pump 2 Leakage in sample point 2 pipe line 3 Blockage in sample point 2 pipe line 4 Defect...

Page 53: ...for SP4 to be set to 1 1 Incorrect adjustment of EOCR in WSU4 2 Defect motor in WSU 4 3 Blocked or jammed pump in WSU 4 SP1 Low pressure A128 Inlet pressure in WSU 1 is too low Inlet pressure in WSU...

Page 54: ...equence continues but the pH measurement is set to 1 1 Connector to pH sensor unplugged 2 Defect sensor 3 Damaged cable or loose connection Turbidity sensor disconnected A160 The WMS controller has lo...

Page 55: ...mperature transmitter in WSU 2 Alarm if the WMS controller loses connection to the pressure transmitter in WSU 2 Power for sample pump 2 to be disconnected and the sample point ignored in the cyclical...

Page 56: ...suitable materials Remedy Check project planning Table 22 Further WMS troubleshooting 5 5 1 Reset alarms When receiving an alarm from the WMS system an action must be taken The alarms in the WMS syste...

Page 57: ...ping system are opened all the way before adjusting the flow switch Follow the procedure below for correct adjustment of the flow switch 1 Go to the LCP display of the WAU and Check that the WMS syste...

Page 58: ...y adjust the adjustment screw turn clockwise until minimum two green LED s are shown 6 Disengage the manual override function of the 3 2 valve and shut OFF the WSU pump to check that the flow switch i...

Page 59: ...IP Address 192 168 1 10 3 12 LAN Gateway 192 168 1 1 3 13 LAN Network mask 255 255 255 0 3 14 Reboot 3 15 WMS Hostname Letters a z case insensitive and Numbers 0 9 hyphen Max 63 characters long 3 16 D...

Page 60: ...Classified as Public Page intentionally left blank...

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