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DRAFT - 11 December 2014

DRAFT - 11 December 2014

INM MTL4850_54 Rev4

15

DRAFT - 11 December 2014

Figure 4.10

CPH-SC16(R) backplane

Figure 4.11

CPH-SC32(R) backplane

Carrier weight: 415g (nominal)

Carrier weight: 420g (nominal)

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Summary of Contents for HCU16x

Page 1: ...DRAFT 11 December 2014 MTL4850 and MTL4854 HART Connection Systems March 2015 INM 4850_54 Rev4 Instruction Manual MTL HART Interfacing Solutions ...

Page 2: ...rlier harmonised standards a subsequent review has determined that technical knowledge is unaffected by the current harmonised standards listed above Product Description EMC1 LVD2 ATEX3 Cat1 Cat2 ATEX Cert No Cat3 ATEX Cert No MTL4850 HART multiplexer Yes N R Yes None MTL08ATEX4850X MTL4854 HART multiplexer Yes N R Yes None MTL08ATEX4850X HMx64 HART multiplexer carrier Yes N R Yes None MTL08ATEX48...

Page 3: ...ing Read and understand the contents of this manual and the product datasheet Ensure installation and operating personnel have received adequate training for this task Ensure that any operating instructions are fully understood by the personnel responsible Observe national and local installation and mounting regulations e g IEC 60079 14 WARNING If these assemblies have been used previously in gene...

Page 4: ...iv DRAFT 11 December 2014 INM MTL4850_54 Rev4 THIS PAGE IS LEFT INTENTIONALLY BLANK ...

Page 5: ...cation and tagging 17 4 9 Backplane earth rails 17 4 10 Backplanes connections 18 4 11 Cabling recommendations 20 4 12 RS485 connection 20 5 MODULES 22 5 1 MTL4850 installation 22 5 2 Isolator modules if used 22 5 3 MTL4850 module 22 6 FAULT FINDING AND ROUTINE MAINTENANCE 23 6 1 Maintenance precautions for MTL4500 modules 23 6 2 Fault finding on custom backplanes 23 6 3 Routine maintenance 24 7 S...

Page 6: ...vi DRAFT 11 December 2014 INM MTL4850_54 Rev4 THIS PAGE IS LEFT INTENTIONALLY BLANK ...

Page 7: ...specifications of the MTL4850 system components and accessories and the MTL4500 Series isolators mentioned in this manual 2 DESCRIPTION The MTL4850 HART Maintenance System enables a user to calibrate configure and maintain an entire network of smart field devices from a single workstation The key element that makes this possible is the MTL4850 or MTL4854 modules which provide the multiplexing for ...

Page 8: ...sideration must be given to the safety parameters for each field loop For further information please refer to MTL or your local representative The MTL4850 has a single HART modem to service the channels connected to the module whilst the MTL4854 has four HART modems The latter enables simultaneous communication with multiple field devices through a single multiplexer providing obvious benefits for...

Page 9: ...evice wiring These are not designed for any particular DCS type and may be used universally The alternative is to choose a connection unit or backplane that integrates with the type of DCS being used on the plant The key advantage of this method is the use of a DCS s specific connector type which simplifies the wiring of the connection units into the system Various solutions are available to suit ...

Page 10: ...tions 4 2 to 4 5 for details The final method considered here consists of two backplane options 16 channel backplane CPH SC16 and CPH SC16R 32 channel backplane CPH SC32 and CPH SC32R Both backplanes accommodate 16 MTL4500 Series IS isolator modules and an MTL4850 or MTL4854 multiplexer module The CPH SC16 backplane is designed for MTL4541 single channel isolators and has 16 field terminals while ...

Page 11: ...sing to and from the field devices the HTP SC32 will often be the primary method of choice It is intended for analogue input signals but may also be used for analogue outputs if the host system is compatible with HART communications Able to handle up to 32 channels through its screw clamp field and system terminals it is a convenient way to integrate HART maintenance facilities The HTP SC32 provid...

Page 12: ...ut DCS input 24V or Tx from DCS Tx 2 wire transmitter input A B Tx Ch HART Tx Ch 200Ω 50Ω Figure 4 2b HTP SC32 S200 for 2 wireTx DCS input DCS input Tx 4 wire transmitter input A B HART Ch 250Ω Link Ch A B Ch Ch Power Figure 4 2c HTP SC32 for 4 wireTx DCS input DCS input Tx 4 wire transmitter input HAR T Ch 250Ω Link Ch A B Ch Ch Power 1 5V input A B Figure 4 2d HTP SC32 P250 for 4 wireTx DCS inpu...

Page 13: ...as shown in Figure 4 3 4 1 5 HART addressing A 6 way DIP switch SW1 is provided on the circuit board to enable a unique HART address to be set for the HART multiplexer The switch is binary coded and the relevant bits should be switched to the ON position See Section 5 3 2 for additional information 4 2 HMP HM64 HART interface Designed to be connected to remote connection units or backplanes via ri...

Page 14: ... software and to onward link to other HMP HM64 or similar HART interfaces Full details of this communications link are provided in Sections 4 12 4 2 4 DC power connections The HMP HM64 has a removable 4 way screw clamp terminal connector that provides redundant 24V dc supply connections LED indicators are provided to indicate the presence of power on each of the redundant power inputs A series dio...

Page 15: ...reater mechanical protection However this is normally unnecessary as to maintain integrity each group of cabinets would communicate their HART signals via independent MTL4850 54 modules using the RS485 interface FIELD BPHM64 HART INTERFACE SYSTEM Tx2 Ch2 Ch2 Ch1 Ch1 Tx1 Ch1 Ch1 Tx1 Tx2 Ch2 Ch2 HCU16 15 13 11 9 1 7 3 5 16 14 12 10 2 8 4 6 15 13 11 9 1 7 3 5 16 14 12 10 2 8 4 6 16ch HART inputs or o...

Page 16: ... circuit board to fit parallel resistors normally 250W or an appropriate series resistor to raise the impedance if it is 240W This unit can be used with analogue outputs if the system s current signal is compatible with HART communications Connections to the field signals and the system are via screw clamp terminals 4 3 1 Mounting The HCU16 is designed for mounting in a control room equipment cabi...

Page 17: ...DRAFT 11 December 2014 DRAFT 11 December 2014 INM MTL4850_54 Rev4 11 HMP HM64 HART INTERFACE Figure 4 7 HCU16 schematic diagram ...

Page 18: ...h with a low pass filter in series with the current signal from the system This has virtually no effect on the 4 20mA signals but presents a suitable high impedance 240W to the HART signals for their detection and measurement Field and system connections are made via pluggable 8 way screw clamp terminals in 4 groups of 4 channels 4 4 1 Mounting The HCU16AO is designed for mounting in a control roo...

Page 19: ...DRAFT 11 December 2014 DRAFT 11 December 2014 INM MTL4850_54 Rev4 13 HMP HM64 HART INTERFACE Figure 4 9 HCU16AO schematic diagram ...

Page 20: ... linked in this way only one will have the multiplexer modules fitted The MTL4850 54 is fitted to the backplane that carries modules 1 16 the RS485 serial link should also be connected to this backplane 4 6 2 CPH SC32 and CPH SC32R backplanes Each of these backplanes will support 32 HART channels They are designed primarily for use with the MTL4544 or MTL4544A analogue input modules and the MTL454...

Page 21: ...DRAFT 11 December 2014 DRAFT 11 December 2014 INM MTL4850_54 Rev4 15 Figure 4 10 CPH SC16 R backplane Figure 4 11 CPH SC32 R backplane Carrier weight 415g nominal Carrier weight 420g nominal ...

Page 22: ...sher B and a plain washer C over it c Insert the screw through a fixing hole on the baseplate d Fit a 10mm spacer D and retain it with washer E e Repeat steps a to d for the other five 5 mounting holes f Attach the baseplate using the prepared panel holes Retain the screws with a suitable nut if the holes are not tapped 4 7 3 DIN rail mounting with DIN rail mounting kit DMK01 DIN rail mounting kit...

Page 23: ...ingstripmountingpost 1 withtwoM3x12 mountingscrews 2 andwashers 3 c Attach colour coding labels 6 onto tag label 5 d Mark tag label 5 with tag references e Slide tag label 5 into tag strip holder 4 and retain with plastic retaining rivet 7 f Attach plastic retaining tie 8 with two plastic rivets 7 g Clip tag strip holder 4 onto mounting posts 1 by pushing downwards 4 9 Backplane earth rails Option...

Page 24: ...e channel terminals are used for input or output field devices because the backplane provides the required interconnections Maximum wire gauge is 2 5mm2 12 AWG and the wire enters from the side of the block 4 10 3 Power supply connections All of the CPH SCxx backplanes have provision for dual redundant 24V dc power supplies The supplies have individual screw terminal plug in connectors and two LED...

Page 25: ...ce without affecting supplies to other backplanes Two or more backplanes can be removed provided they are neighbours without disrupting the supply to other backplanes Make the connections as shown in Figure 4 18 NOTE Backplanes can be ring mained providing the maximum circuit current does not exceed 12A Wire sizes up to 2 5mm2 12AWG can be used and should be chosen according to load and voltage dr...

Page 26: ...S232 or USB for serial communication however this interface type does not allow the communications network to extend beyond 10 to 20 metres in length MTL have chosen to use an RS485 serial interface which includes tri state operation and allows network lengths of up to 1000 metres and operates with data rates between 1200 and 38k4 baud when used with the MTL4850 or MTL4854 RS485 also allows the si...

Page 27: ...ing it is suggested that the same colour convention is used for all connections to backplane terminals A and B e g red to A black to B NOTE No damage will occur if the signalling lines are connected with the wrong polarity The system will not operate in this case but all that has to be done is to reverse the two connections to make it operate correctly 4 12 2 Data converters Most PCs used to run i...

Page 28: ...dress switches are binary coded and the address is set by constructing the required number from the switch options provided i e 1 2 4 8 16 and 32 For example address number 29 would be set by putting switches 16 8 4 and 1 in theON position 16 8 4 1 29 NOTE the HMP HM64 can only be set to even numbers as the other module adopts the odd addresses See Section 4 2 5 5 3 3 Operation at power up The MTL...

Page 29: ...as occurred 2 Check that backplane power LEDs are ON If not check the power supply fuse s and if necessary change any of them 3 Check that the PWR power LED on the MTL4850 54 module is ON If not and the circuit board power LED is ON replace the module 4 Exchange potentially faulty isolator modules as follows a Unplug the hazardous area connector s b Unclip and remove the module from the backplane ...

Page 30: ...ly undertake the tests and routine maintenance described in sections 6 2 and 6 3 If an MTL4500 module is judged faulty repairs or modifications MUST NOT be made as these may affect the intrinsic safety of the module For repair or replacement any faulty units or backplanes should be returned to MTL or the representative from which they were purchased 7 SOFTWARE CONNECTIVITY 7 1 Introduction The MTL...

Page 31: ...4 system to pass HART data to any IMS that utilises the FDT DTM concept The DD and DTM files are free of charge and can be downloaded from the MTL website at www mtl inst com product hart_software 7 3 Software setup Having connected the MTL4850 54 system as described in this manual set up the software as described in the software user s manual Acknowedgements Windows is a trademark of Microsoft Co...

Page 32: ... with the appropriate European national and local regulations which may include reference to the code of practice IEC EN 60079 14 In addition particular industries or end users may have specific requirements relating to the safety of their installations and these requirements should also be met For the majority of installations the Directive 1999 92 EC the ATEX Directive safety of installations is...

Page 33: ...n the Declaration of Conformity on page ii these products are included in the ATEX Cat3 certificate number MTL08ATEX4850X 9 APPENDIX A TYPICAL COMPATIBLE SYSTEMS MTL offer a range of backplanes for mounting MTL4500 Series IS isolators that are cus tomized to the requirements of the particular control or shutdown system Many of these custom boards for the analogue I O signals include a connector fo...

Page 34: ... update 12V Supply out of range Check power supply to multiplexer is within specification Return to MTL if alarm persists 12V Supply out of range Return to MTL if alarm persists VBias out of range Return to MTL if alarm persists VLeak out of range Return to MTL if alarm persists Power up scan complete Transmitters found Number 0 32 Logs followed by 2 values Meaning or required action VH signal out...

Page 35: ... MTL if alarm persists Sequence error Main initialisation Return to MTL if alarm persists Sequence error Main startup Return to MTL if alarm persists Sequence error First Field I O Return to MTL if alarm persists Sequence error Timer Queue Return to MTL if alarm persists Sequence error Second Field I O Return to MTL if alarm persists Sequence error Event handler Return to MTL if alarm persists Seq...

Page 36: ... 22 73 98 12 0 Fax 49 0 22 73 98 12 2 00 E mail mtlgmbh eaton com INDIA MTL India No 36 Nehru Street Off Old Mahabalipuram Road Sholinganallur Chennai 600 119 India Tel 91 0 44 24501660 24501857 Fax 91 0 44 24501463 E mail mtlindiasales eaton com ITALY MTL Italia srl Via A Meucci 10 I 20094 Corsico MI Italy Tel 39 0 2 61802011 Fax 39 0 2 61294560 E mail chmninfo eaton com JAPAN Cooper Crouse Hinds...

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