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INSTRUCTIONS 

MODBUS RTU CARD 

RIGHT FROM 

THE START 

 

 

Contents 

 

 

1.

 

Important User Information ................................................................ 2

 

2.

 

Installation ........................................................................................... 2

 

3.

 

Operation ............................................................................................. 3

 

4.

 

Modbus Registers ................................................................................ 4

 

5.

 

Specifications .................................................................................... 16

 

Product Compatibility 

The Modbus RTU Card is suitable for use with EMX4e and EMX4i soft starters.  

 

Disclaimer 

The examples and diagrams in this manual are included solely for illustrative 
purposes.  The information contained in this manual is subject to change at any time 
and without prior notice. In no event will responsibility or liability be accepted for 
direct, indirect or consequential damages resulting from the use or application of this 
equipment. 

Warnings 

 

WARNING 
For your safety, isolate the soft starter from mains voltage before attaching or 
removing accessories. 

 

WARNING 
Inserting foreign objects or touching the inside of the starter while the 
expansion port cover is open may endanger personnel, and can damage the 
starter. 

© 2018 AuCom Electronics Ltd. All Rights Reserved.  

Modbus RTU Card  |  Rev B  08/2018 

Summary of Contents for Modbus RTU Card

Page 1: ...n this manual is subject to change at any time and without prior notice In no event will responsibility or liability be accepted for direct indirect or consequential damages resulting from the use or application of this equipment Warnings WARNING For your safety isolate the soft starter from mains voltage before attaching or removing accessories WARNING Inserting foreign objects or touching the in...

Page 2: ...2 1 Installation Procedure 1 Push a small flat bladed screwdriver into the slot in the centre of the expansion port cover and ease the cover away from the starter 2 Line up the card with the expansion port Gently push the card along the guide rails until it clicks into the starter B4 B5 10 11 12 13 14 15 21 22 33 34 41 42 44 53 54 B4 B5 10 1 1 12 13 14 15 21 22 33 34 41 42 44 53 54 1 2 17049 A 2 2...

Page 3: ...Network Settings Network communication parameters for the card must be set via the soft starter For details on how to configure the soft starter refer to the soft starter user manual Parameter Parameter name Description 12A Modbus Address Sets the Modbus RTU network address for the soft starter 12B Modbus Baud Rate Selects the baud rate for Modbus RTU communications 12C Modbus Parity Selects the p...

Page 4: ...sters mean the registers within the module unless otherwise stated 4 2 Compatibility The Modbus RTU Card supports two modes of operation In Standard Mode the card uses registers defined in the Modbus Protocol Specification In Legacy Mode the card uses the same registers as AuCom s Modbus Module Some registers differ from those specified in the Modbus Protocol Specification The mode of operation is...

Page 5: ...ingle write 0 to 7 To send a command to the starter write the required value 00000000 Stop 00000001 Start 00000010 Reset 00000100 Quick stop coast to stop 00001000 Forced communication trip 00010000 Start using Parameter Set 1 00100000 Start using Parameter Set 2 01000000 Reserved 10000000 Reserved 8 to 14 Reserved 15 Must 1 40002 Reserved 40003 Reserved 40004 Reserved 40005 Reserved 40006 Reserve...

Page 6: ...X4i 30601 Model number 0 to 7 Reserved 8 to 15 Soft starter model ID 30602 Changed parameter number 0 to 7 0 No parameters have changed 1 255 Index number of the last parameter changed 8 to 15 Total number of parameters available in the starter 30603 Changed parameter value 0 to 15 Value of the last parameter that was changed as indicated in register 30252 30604 Starter state 0 to 4 0 Reserved 1 R...

Page 7: ...10 to get W 1 Multiply power by 100 to get W 2 Power kW 3 Multiply power by 10 to get kW 14 to 15 Reserved 30609 Power factor 0 to 7 100 power factor of 1 8 to 15 Reserved 30610 Voltage 0 to 13 Average rms voltage across all three phases 14 to 15 Reserved 30611 Current 0 to 13 Phase 1 current rms 14 to 15 Reserved 30612 Current 0 to 13 Phase 2 current rms 14 to 15 Reserved 30613 Current 0 to 13 Ph...

Page 8: ...t A 4 Input B 5 to 15 Reserved 30619 Trip code 0 to 7 Refer to Trip Codes on page 13 8 to 15 Reserved 30620 30631 Reserved NOTE Reading register 30603 Changed parameter value will reset registers 30602 Changed parameter number and 30604 Parameters have changed Always read registers 30602 and 30604 before reading register 30603 8 Modbus RTU Card 710 16499 00B ...

Page 9: ...d single write 0 to 2 To send a command to the starter write the required value 1 Start 2 Stop 3 Reset 4 Quick stop coast to stop 5 Forced communication trip 6 Start using Parameter Set 1 7 Start using Parameter Set 2 3 to 15 Reserved 40003 Starter state 0 to 3 1 Ready 2 Starting 3 Running 4 Stopping including braking 5 Restart delay including temperature check 6 Tripped 7 Programming mode 8 Jog f...

Page 10: ... 0 to 7 Reserved 8 to 15 Soft starter model ID 40602 Changed parameter number 0 to 7 0 No parameters have changed 1 255 Index number of the last parameter changed 8 to 15 Total number of parameters available in the starter 40603 Changed parameter value 0 to 15 Value of the last parameter that was changed as indicated in register 40602 40604 Starter state 0 to 4 0 Reserved 1 Ready 2 Starting 3 Runn...

Page 11: ...100 to get W 2 Power kW 3 Multiply power by 10 to get kW 14 to 15 Reserved 40609 Power factor 0 to 7 100 power factor of 1 8 to 15 Reserved 40610 Voltage 0 to 13 Average rms voltage across all three phases 14 to 15 Reserved 40611 Current 0 to 13 Phase 1 current rms 14 to 15 Reserved 40612 Current 0 to 13 Phase 2 current rms 14 to 15 Reserved 40613 Current 0 to 13 Phase 3 current rms 14 to 15 Reser...

Page 12: ...e reading register 40603 4 7 Examples Command Start Message Starter Address Function Code Register Data CRC In 20 06 40002 1 CRC1 CRC2 Out 20 06 40002 1 CRC1 CRC 2 Starter state Running Message Starter Address Function Code Register Data CRC In 20 03 40003 1 CRC1 CRC2 Out 20 03 2 xxxx0011 CRC1 CRC2 Trip code Motor overload Message Starter Address Function Code Register Data CRC In 20 03 40004 1 CR...

Page 13: ...C1 CRC2 NOTE This function can only be used to upload consecutive parameters The Register field indicates the number of parameters to be uploaded and the register number of the first parameter 4 8 Trip Codes Trip Code Description 0 No trip 1 Excess start time 2 Motor overload 3 Motor thermistor 4 Current imbalance 5 Frequency 6 Phase sequence 7 Instantaneous overcurrent 8 Power loss 9 Undercurrent...

Page 14: ...Zero Speed Detect 58 SCR Itsm 59 Instantaneous overcurrent 60 Rating Capacity 70 Current Read Err L1 71 Current Read Err L2 72 Current Read Err L3 73 Remove Mains Volts mains voltage connected in run simulation 74 Motor Connection T1 75 Motor Connection T2 76 Motor Connection T3 77 Firing Fail P1 78 Firing Fail P2 79 Firing Fail P3 80 VZC Fail P1 81 VZC Fail P2 82 VZC Fail P3 83 Low Control Volts ...

Page 15: ...s The adapter or starter does not support the specified register address 3 Illegal data value The adapter or starter does not support one of the received data values 4 Slave device error An error occurred while trying to perform the requested function 6 Slave device busy The adapter is busy for example writing parameters to the starter Modbus RTU Card 710 16499 00B 15 ...

Page 16: ...ctor supplied Maximum cable size 2 5 mm2 Settings Protocol Modbus RTU AP ASCII Address range 0 to 254 Data rate bps 4800 9600 19200 38400 Parity None Odd Even 10 bit Timeout None Off 10 s 60 s 100 s Certification RCM IEC 60947 4 2 CE EN 60947 4 2 RoHS Compliant with EU Directive 2011 65 EU 16 Modbus RTU Card 710 16499 00B ...

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