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Modbus - general info

vacon • 7

Local contacts: http://drives.danfoss.com/danfoss-drives/local-contacts/

2

Your VACON

®

100 family AC drive is equipped with Modbus support as standard. If you need to con-

tact VACON

®

service in problems related to Modbus, send a description of the problem together

with the Drive Info File taken with VACON

®

Live to customer support. If possible, also send a "Wire-

shark" log from the situation if applicable.

Figure 2.Principal example diagram of Modbus

Ethernet

Modbus TCP

Modbus RTU

Modbus
RTU
master

Switch

11781_uk

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Summary of Contents for 100 INDUSTRIAL

Page 1: ...vacon 100 industrial vacon 100 flow vacon 100 hvac vacon 100 x ac drives modbus tcp udp and modbus rtu user manual...

Page 2: ......

Page 3: ...and basic reference selection 22 5 1 1 Torque control parametrization 22 5 1 2 Enabling Modbus protocol 23 5 2 Modbus RTU parameters and monitoring values M5 8 3 23 5 2 1 Slave address 24 5 2 2 Baud...

Page 4: ...ata OUT 34 6 3 8 ID map 35 6 3 9 Operation day counter 36 6 3 10Resettable operation day counter 37 6 3 11Energy counter 38 6 3 12Resettable energy counter 39 6 3 13Fault history 40 6 3 14Fault histor...

Page 5: ...if no keypad is attached see the indicators on the cover Wait 5 more minutes before doing any work on the connections of the drive Do not open the cover before this time has expired After expiration...

Page 6: ...tart immediately if the start signal is active unless the pulse control for Start Stop logic has been selected Futhermore the I O functionalities including start inputs may change if param eters appli...

Page 7: ...rthing conductor which does not form part of the supply cable or cable enclosure shall in any case be not less than 2 5mm2 if mechanical protection is provided or 4mm2 if mechanical protection is not...

Page 8: ...large changes in the software A device can also communicate with several Modbus nodes at once even if they are connected with different interface types without the need to use a different protocol for...

Page 9: ...andard If you need to con tact VACON service in problems related to Modbus send a description of the problem together with the Drive Info File taken with VACON Live to customer support If possible als...

Page 10: ...dged by the receiver see the figure below This adds extra traffic to the net work and more load to the system PLC and drives because software needs to keep track of sent frames to make sure that they...

Page 11: ...transaction id field It actually must do this also when using TCP If the PLC does not receive response in time from the AC drive in UDP con nection it needs to send the query again When using TCP the...

Page 12: ...bus Response 4 Modbus Query 2 Modbus Query 3 Modbus Query 4 Packet lost no response Packet lost no response Normal communication continues Modbus UDP Communication PLC Drive 11718_uk Modbus TCP Commun...

Page 13: ...Detection in Ethernet network The VACON 100 family AC drive implements the ACD algorithm IETF RFC 5227 The ACD algorithm tries to actively detect if the IP address configured to this device is used b...

Page 14: ...STALLATION 4 1 Installation in VACON 100 family AC drives 1 Open the cover of the AC drive The relay outputs and other I O terminals may have a dangerous control voltage present even when the AC drive...

Page 15: ...ontacts http drives danfoss com danfoss drives local contacts 4 4 1 1 Prepare for use through ethernet 3 Connect the Ethernet cable see specification in Chapter 3 2 to its terminal as shown in figure...

Page 16: ...ngs wider than what is necessary for the cables you are using NOTE To meet the requirements of the enclosure class IP54 the connection between the grommet and the cable must be tight Therefore lead th...

Page 17: ...ember to do this for both bus cables except for the last device Leave no more than 10 mm of the cable outside the terminal block and strip the cables at about 5 mm to fit in the terminals See picture...

Page 18: ...ery of the drive ground the shield of the RS485 cable to the frame of the AC drive NOTE This can be done in all drives if there is no difference in PE potentialbe tween the drives However if there is...

Page 19: ...in the termination resistor See also step 6 on page 18 5 Unless already done for the other control cables cut free the opening on the AC drive cover for the RS485 cable protection class IP21 NOTE This...

Page 20: ...nd the last device of the fieldbus line See picture below See also step 3 on page 17 We recommend that the first device on the bus and thus terminated was the Master device Fieldbus cable Bus terminat...

Page 21: ...ntrol terminals Figure 6 4 2 1 Prepare for use through Ethernet For more detailed information see the user s manual of the fieldbus you are using 1 Connect the Ethernet cable see specification in Chap...

Page 22: ...cables at about 5 mm to fit in the terminals See picture below Also strip the cable now at such a distance from the terminal that you can fix it to the frame with the grounding clamp Strip the cable...

Page 23: ...on resistor See also step 6 NOTE When planning the cable runs remember to keep the distance between the fieldbus cable and the motor cable at a minimum of 30 cm 5 The bus termination must be set for t...

Page 24: ...owing tables list some of the parameters related to fieldbus control in case of VACON applications for the VACON 100 family AC drive See the application specific manuals for more detailed information...

Page 25: ...tion is required for Master functionality Table 5 Enabling Modbus RTU protocol Parameter name ID Value Default Panel Tree RS 485 protocol 2208 0 No Protocol 1 Modbus RTU 2 BACnet MSTP 3 N2 No protocol...

Page 26: ...bit configuration manually using parameter P5 X 3 1 4 5 2 4 Stop bits You can select the stop bit amount for the Modbus RTU network 5 2 5 Communication timeout Modbus initiates a communication error...

Page 27: ...rational 3 Faulted P5 8 3 2 2 Communication status 0 0 99 999 2382 0 99 Number of messages with errors 0 999 Number of messages without communication errors Reset on drive restart P5 8 3 2 3 Illegal f...

Page 28: ...ounts error situations The server or slave is engaged in processing a long duration program command The client or master should retransmit the message later when the server or slave is free This corre...

Page 29: ...e Internet Table 12 Ethernet common settings M5 9 1 Panel Tree Parameter Range Default ID Description P5 9 1 1 IP address mode Fixed 1 DHCP 2 DHCP 2 2482 IP Mode P5 9 1 2 Duplicate IP Detection Disabl...

Page 30: ...It is not editable 5 3 8 Modbus TCP UDP settings M5 9 2 The monitoring values menu structure is duplicated to all connections Maximum number of connections is three 3 Monitoring menus are visible eve...

Page 31: ...when using both TCP and UDP In TCP you can use value 255 non significant as a unit identifier and send the messages to all slaves with that value 5 3 11 Communication timeout For Modbus this value de...

Page 32: ...ned in the application Every parameter and actual value have been given an ID number in the application The ID numbering of the parameter as well as the parameter ranges and steps can be found in the...

Page 33: ...ry data item which is read only In VACON 100 family AC drives the discrete inputs refer to the fieldbus status word bits See Chapter 10 Table 16 Defined coil registers Address Function Purpose 0001 RU...

Page 34: ...19 19 2051 2086 FBProcessDataIN 32bit Table 21 RW 36 36 2101 2119 FBProcessDataOUT 16bit Table 22 RO 19 0 2151 2186 FBProcessDataOUT 32bit Table 22 RO 36 0 2200 10000 Vacon Application IDs 16bit Tabl...

Page 35: ...ID map Parameters which have 32 bit value can be read from their own range For example if you want to read the value for ID 864 FB Status Word the address must be set to 21726 This address value come...

Page 36: ...coded 2003 2053 High data 2054 Low data FB Speed Reference 0 10000 100 2004 2055 High data 2056 Low data FB Process Data In 1 See Chapter 9 APPENDIX 1 PROCESS DATA 2005 2057 High data 2058 Low data FB...

Page 37: ...e address 10601 and so on The address range 10701 10760 contains the ID Map read write for 32bit values Maximum of 30 IDs and ID values can be written and read with single request IDMap IDs can be als...

Page 38: ...l unit operating time counter total value This counter cannot be reset The values are read only Table 23 Parameter Values in 16 bit IDMap Read Write registers Address Data 10601 Data included in param...

Page 39: ...registers 40111d to 40112d holds the value of resettable operation days as seconds in a 32 bit unsigned integer Resettable operation day counter This counter in registers 40101d to 40105d holds the va...

Page 40: ...of energy used format of the energy value and unit of the energy value Example If energy 1200 format 52 unit 1 then actual energy is 12 00 kWh Table 29 Energy counter as kWh Address Description 40211...

Page 41: ...nter amount of energy used format of the energy value and unit of the energy value Example If energy 1200 format 52 unit 1 then actual energy is 12 00 kWh Table 31 Resettable energy counter as kWh Add...

Page 42: ...be viewed by reading from address 40511 onward The faults are listed in a chronological order so that the latest fault is mentioned first and the oldest last These addresses contain the fault code and...

Page 43: ...connection is opened Timeout can be set only to the connection which is been used to access this register By default the connection uses the communication timeout value given via panel parameters If...

Page 44: ...s HI 00 hex Number of registers 0003 hex 3 No of registers LO 03 hex Byte count 06 hex Byte count 06 hex 6 Data HI 00 hex Data 1 0001 hex 1 Setting control word run bit to 1 Data LO 01 hex Data HI 00...

Page 45: ...x 1 FUNCTION 04 hex Function 4 hex 4 DATA Starting address HI 08 hex Starting address 0836 hex 2102 Starting address LO 36 hex No of registers HI 00 hex Number of registers 0002 hex 2 No of registers...

Page 46: ...4 78 E9 Table 44 ADDRESS 01 hex Slave address 1 hex 1 FUNCTION 04 hex Function 4 hex 4 DATA Starting address HI 17 hex Starting address 1770 hex 6000 Starting address LO 70 hex No of registers HI 00 h...

Page 47: ...ly near 0 V due to the termination resistors This may cause problems in character reception because the single characters in serial communication begin with start bit referring to bus status 0 with vo...

Page 48: ...ation resistors chapter 4 4 Check parameters e Is the device in READY state Check Master s parameters Is fieldbus selected as control place Does Master give RUN command Check cabling Check termination...

Page 49: ...protocol Is the device in READY state Check Master s parameters Is fieldbus selected as control place Does Master give RUN command Check cabling Other bus devices Check connections Check the led on k...

Page 50: ...ick Setup M1 Rem Ctrl Place P1 15 FieldbusCTRL 2 Make these settings in the master software A Set Control Word to 0 by writing the data 0000h to the register 2001d B Set Control Word to 1 by writing t...

Page 51: ...rives the Motor Current scale depends on the drive size In VACON 100 HVAC the Motor Current scale is always 0 1 A NOTE 2 In VACON 100 HVAC the default ID is 45 meaning Motor Current 1 Decimal In VACON...

Page 52: ...s FORWARD 1 Requested direction is REVERSE 2 Fault reset 0 No action 1 Rising edge 0 1 Active faults alarms and infos are reset 3 Stop mode 1 0 Stop mode is unmodified 1 Stop mode is overridden to Coa...

Page 53: ...served Table 52 Control word bit support in VACON 100 family AC drives Bit Function VACON 100 INDUSTRIAL FLOW VACON 100 HVAC 0 Start Stop x x 1 Direction x x 2 Fault reset x x 3 Stop mode 1 x x 4 Stop...

Page 54: ...valid for most of VACON 100 applications Table 53 Status Word Bit Function Description B0 Ready 0 Drive is not ready 1 Drive is ready to run B1 Run 0 Motor is not running 1 Motor is running B2 Directi...

Page 55: ...terials provided with the distri bution 3 The name of the author may not be used to endorse or promote products derived from this soft ware without specific prior written permission THIS SOFTWARE IS P...

Page 56: ...Document ID DPD00156D Rev D Sales code DOC INSMODBUS DLUK Vacon Ltd Member of the Danfoss Group Runsorintie 7 65380 Vaasa Finland www danfoss com...

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