TECO 7300CV User Manual

7300CV MODBUS COMMUNICATION PROTOCOL

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7300CV MODBUS

USER’S MANUAL

COMMUNICATION INTERFACE

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1. Communication Data Frame

7300CV series inverter can be communication controlled by the PC or other controller with the

communication protocol, Modbus ASCII Mode & Mode RTU, RS485 or RS232.

Frame length maximum 80 bytes

1.1 Hardware installation

Slave 7300CV

Station 01

Slave 7300CV

Station 02

Slave 7300CV

Station 03

Slave 7300CV

Station FE

Controller

(PLC / HMI or

PC )

Option Card Option Card Option Card Option Card

RS-485

Interface

RSA RSB RSA RSB RSA RSB

RSA RSB

Response

Request

** The network is terminated at each end with an external terminating resistor (120 ohm, 1/4 watt).

1.2 Data format frame FOR ASCII MODE

STX(3AH) Start Bit = 3AH

Address Hi

Address Lo

Communication Address(Station):

2-digit ASCII Code

Function Hi

Function Lo

Function Code (command):

2-digit ASCII Code

Command Start Address

Command Start byte:

4-digit ASCII Code

Data length

The length of the command:

4-digit ASCII Code

LRC Check Hi

LRC Check Lo

LRC Check Code:

2-digit ASCII Code

END Hi

END Lo

End Byte:

END Hi=CR(0DH),END Li = LF(0AH)

Data format frame FOR RTU MODE

MASTER (PLC etc.) send request to SLAVE, whereas SLAVE response to MASTER. The signal receiving is illustrated here.

120Ω 1/4w

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The data length is varied with the command (Function).

SLAVE Address

Function Code

DATA

CRC CHECK

Signal Interval

** The interval should be maintained at 10ms between command signal and request

1.3 SLAVE Address

00H : Broadcast to all the drivers

01H : to the No. 01 Driver

0FH : to the No.15 Driver

10H : to the No.16 Driver

and so on...., Max to No. 254(FEH)

1.4 Function Code

03H : Read the register contents

06H : Write a WORD to register

08H : Loop test

10H : Write several data to register (complex number register write)

2.CMS (Checksum and time-out definition)

2.1 LRC

ex. ADDRESS 01H

FUNCTION 03H

COMMAND 01H

00H

DATA LENGTH 0AH

-----------------------

0FH------------ true complement

Checksum = F1H

CS(H) = 46H (ASCII)

CS(L) = 31H (ASCII)

2.2 CRC CHECK :

CRC check code is from Slave Address to end of the data. The calculation method is illustrated as follow:

(1) Load a 16-bit register with FFFF hex (all's 1). Call this the CRC register.

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(2) Exclusive OR the first 8-bit byte of the message with the low-order byte of the 16-bit CRC

register, putting the result in the CRC register.

(3) Shift the CRC register one bit to the right (toward the LSB), Zero-filling the MSB, Extract and

examines the LSB.

(4) (If the LSB was 0): Repeat Steps (3)(another shift).(If the LSB was 1): Exclusive OR the CRC

register with the polynomial value A001 hex (1010 0000 0000 0001).

(5) Repeat Steps (3) and (4) until 8 shifts been performed. When this is done, a complete 8-bit byte

will be processed.

(6) Repeat Steps (2) through (5) for next 8-bit byte of the message, Continue doing this until all

bytes have been processed. The final content of the CRC register is the CRC value. Placing the

CRC into the message: When the 16-bit CRC (2 8-bit bytes) is transmitted in the message, the

low-order byte will be transmitted first, followed by the high-order byte, For example, if the

CRC value is 1241 hex, the CRC-16 Upper put the 41h, the CRC-16 Lower put the 12h

z CRC calculation application program

UWORD ch_sum ( UBYTE long , UBYTE *rxdbuff ) {

BYTE i = 0;

UWORD wkg = 0xFFFF;

while ( long-- ) {

wkg ^= rxdbuff++;

for ( i = 0 ; i < 8; i++ ) {

if ( wkg & 0x0001 ) {

wkg = ( wkg >> 1 ) ^ 0xa001;

}

else {

wkg = wkg >> 1;

}

return( wkg );

}

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2.3 TIME-OUT (400ms) & RETRY (max. : 2 times)

PC-LINK S 400ms

PC-LINK S

(When INV(PLC) time-out or detect checksum error, or INV(PLC) response error code = checksum error,

PC-LINK retry maximum two times, and if two times after still error,

then display “ERR6”)

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3.Command START ADDRESS

Function Description

Command

Start Address

Data length

(WORD)

Ladder page1 read 200H 0AH

Ladder page2 read 20AH 0AH

Ladder page3 read 214H 0AH

Ladder page4 read 21EH 0AH

Ladder page5 read 228H 0AH

Timer1 Function read 264H 05H

Timer2 Function read 269H 05H

Timer3 Function read 26EH 05H

Timer4 Function read 273H 05H

Timer5 Function read 278H 05H

Timer6 Function read 27DH 05H

Timer7 Function read 282H 05H

Timer8 Function read 287H 05H

Counter1 Function read 28CH 04H

Counter2 Function read 290H 04H

Counter3 Function read 294H 04H

Counter4 Function read 298H 04H

Encoder1 Function read 2ACH 05H

Encoder2 Function read 2B1H 05H

Encoder3 Function read 2B6H 05H

Encoder4 Function read 2BBH 05H

Analog1 Function read 2C0H 03H

Analog2 Function read 2C3H 03H

Analog3 Function read 2C6H 03H

Analog4 Function read 2C9H 03H

Control function read 2CCH 06H

Contro2 function read 2D2H 06H

Contro3 function read 2D8H 06H

Contro4 function read 2DEH 06H

Contro5 function read 2E4H 06H

Contro6 function read 2EAH 06H

Contro7 function read 2F0H 06H

Contro8 function read 2F6H 06H

03

All Coil status read 2FCH~303H 08H

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Function Description

Command

Start Address

Data length

(WORD)

Ladder page1 write 200H 0AH

Ladder page2 write 20AH 0AH

Ladder page3 write 214H 0AH

Ladder page4 write 21EH 0AH

Ladder page5 write 228H 0AH

Timer1 Function write 264H 04H

Timer2 Function write 269H 04H

Timer3 Function write 26EH 04H

Timer4 Function write 273H 04H

Timer5 Function write 278H 04H

Timer6 Function write 27DH 04H

Timer7 Function write 282H 04H

Timer8 Function write 287H 04H

Counter1 Function write 28CH 03H

Counter2 Function write 290H 03H

Counter3 Function write 294H 03H

Counter4 Function write 298H 03H

Encoder1 Function write 2ACH 04H

Encoder2 Function write 2B1H 04H

Encoder3 Function write 2B6H 04H

Encoder4 Function write 2BBH 04H

Analog1 Function write 2C0H 03H

Analog2 Function write 2C3H 03H

Analog3 Function write 2C6H 03H

Analog4 Function write 2C9H 03H

Control function write 2CCH 06H

Contro2 function write 2D2H 06H

Contro3 function write 2D8H 06H

Contro4 function write 2DEH 06H

Contro5 function write 2E4H 06H

Contro6 function write 2EAH 06H

Contro7 function write 2F0H 06H

10

Contro8 function write 2F6H 06H

06 Coil status write 2FCH 01H

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Function Description

Command

Start Address

Data length

(WORD)

RUN&Stop(PLC) 330H 1

All memory clear

(Clear Plc Memory)

331H 1

06

PASSWORD 332H 1

Note: ‘Write Ladder page write’ and ‘Clear all memory’ are not available under PLC running

mode.

4.Error code

ASCII Mode RTU Mode

STX ‘:’ SLAVE Address 02H

‘0’ Function 83H

Address

‘1’ Exception code 52H

‘8’ High C0H

Function

‘6’

CRC-16

Low CDH

‘5’ Exception

code

‘1’

‘2’

LRC Check

‘8’

‘CR’

END

‘LF’

Under communication linking, the driver responses the Exception Code and send Function Code AND

80H to main system if there is error happened.

Error

Code

Description

51

Function Code Error

52

Address Error

53

Data Amount Error

54

Data Over Range

55 Writing Mode Error

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5.Command Start Address description

5.1 Ladder(* )page read ASCII Mode

PC Æ INV(PLC) INV(PLC)ÆPC

3AH STX 3AH STX

30H 30H

31H

Address

31H

Address

30H 30H

33H

Function Code

33H

Function Code

30H 31H

32H 34H

Data length

(Byte)

30H

*Register Number

Send out the data from 200H~209H,

total 40 Byte

30H ?

CHECK

SUM,

30H 0DH END

41H

Data Length

0AH END

?

CHECK SUM,

0DH END

0AH END

RTU Mode

PC Æ INV(PLC) INV(PLC)ÆPC

01H Address

03H Function Code

02H

14H Data length

00H

*Register Number

00H

Sent out the data from 200H~209H,

total 20 Byte

0AH

Data Length

? CRC High Byte

CRC High Byte

? CRC Low Byte

CRC Low Byte

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5.2 Function block read

5.2.1 Timer function block read ASCII Mode

PC ÆINV(PLC) INV(PLC)ÆPC

3AH STX 3AH STX

30H 30H

31H

Address

31H

Address

30H 30H

33H

Function Code

33H

Function Code

30H 30H

32H 41H

Data length

(Byte)

36H

34H

*Register Number

*Send out the data from

264H~268H, total 20 Byte

30H ?

CHECK

SUM,

30H 0DH END

35H

Data Length

0AH END

?

CHECK SUM,

0DH END

0AH END

RTU Mode

PC Æ INV(PLC) INV(PLC)ÆPC

01H Address

03H Function Code

02H

0AH Data length

64H

*Register Number

00H

*Send out the data from 264H~268H,

total 10 Byte

05H

Data Length

? CRC High Byte

CRC High Byte

? CRC Low Byte

CRC Low Byte

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5.2.2 Counter function block read

ASCII Mode

PC ÆINV(PLC) INV(PLC) ÆPC

3AH STX 3AH STX

30H 30H

31H

Address

31H

Address

30H 30H

33H

Function Code

33H

Function Code

30H 30H

32H 38H

Data Length

(Byte)

38H

43H

*Register Number

*send out the data from

28CH~28FH, total 16 Byte

30H ?

CHECK SUM

30H 0DH END

34H

Data Length

0AH END

?

CHECK SUM

0DH END

0AH END

RTU Mode

PC Æ INV(PLC) INV(PLC)ÆPC

01H Address

03H Function Code

02H

08H Data length

8CH

*Register Number

00H

*Send out the data from 28CH~28FH,

total 8 Byte

04H

Data Length

? CRC High Byte

CRC High Byte

? CRC Low Byte

CRC Low Byte

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5.2.3 Encoder function block read ASCII Mode

PC ÆINV(PLC) INV(PLC) ÆPC

3AH STX 3AH STX

30H 30H

31H

Address

31H

Address

30H 30H

33H

Function Code

33H

Function Code

30H 30H

32H 41H

Data Length

(Byte)

41H

43H

*Register Number

*Send out the data from

2ACH~2B0H, total 20 Byte

30H ?

CHECK

SUM,

30H 0DH END

35H

Data Length

0AH END

?

CHECK SUM

0DH END

0AH END

RTU Mode

PC Æ INV(PLC) INV(PLC)ÆPC

01H Address

03H Function Code

02H

0AH Data length

ACH

*Register Number

00H

*Send out the data from

2ACH~2B0H, total 10 Byte

05H

Data Length

? CRC High Byte

CRC High Byte

? CRC Low Byte

CRC Low Byte

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5.2.4 Analog function block read ASCII Mode

PC Æ INV(PLC) INV(PLC) ÆPC

3AH STX 3AH STX

30H 30H

31H

Address

31H

Address

30H 30H

33H

Function Code

33H

Function Code

30H 30H

32H 36H

Data Length

(Byte)

43H

30H

*Register Number

*Send out the data from

2C0H~2C2H, total 12 Byte

30H ?

CHECK

SUM,

30H 0DH END

33H

Data Length

0AH END

?

CHECK SUM

0DH END

0AH END

RTU Mode

PC Æ INV(PLC) INV(PLC)ÆPC

01H Address

03H Function Code

02H

06H Data length

C0H

*Register Number

00H

**Send out the data from

2C0H~2C2H, total 6 Byte

03H

Data Length

? CRC High Byte

? CRC Low Byte

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5.2.5 Control function block read

ASCII Mode

PCÆ INV(PLC) INV(PLC) ÆPC

3AH STX 3AH STX

30H 30H

31H

Address

31H

Address

30H 30H

33H

Function Code

33H

Function Code

30H 30H

32H 43H

Data Length

(Byte)

43H

*Register Number

*Send out the data from

2CCH~2D1H, total 24 Byte

30H ?

CHECK SUM

30H 0DH END

36H

Data Length

0AH END

?

CHECK SUM

0DH END

0AH END

RTU Mode

PC Æ INV(PLC) INV(PLC)ÆPC

01H Address

03H Function Code

02H

0CH Data length

CCH

*Register Number

00H

**Send out the data from

2CCH~2D1H, total 12 Byte

06H

Data Length

? CRC High Byte

CRC High Byte

? CRC Low Byte

CRC Low Byte

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5.2.6 Coil status read ASCII Mode

PC ÆINV(PLC) INV(PLC) ÆPC

3AH STX 3AH STX

30H 30H

31H

Address

31H

Address

30H 30H

33H

Function Code

33H

Function Code

30H 31H

32H 30H

Data Length

(Byte)

46H

43H

*Register Number

*Send out the data from

2FCH~303H, total 32 Byte

30H ?

CHECK SUM

30H 0DH END

38H

Data Length

0AH END

?

CHECK SUM

0DH END

0AH END

RTU Mode

PC Æ INV(PLC) INV(PLC)ÆPC

01H Address

03H Function Code

02H

10H Data length

FCH

*Register Number

00H

*Send out the data from

2FCH~303H, total 16 Byte

08H

Data Length

? CRC High Byte

CRC High Byte

? CRC Low Byte

CRC Low Byte

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6.3 Ladder page write

ASCII Mode

PC Æ INV(PLC) INV(PLC) ÆPC

3AH STX

30H

31H

Address

31H

Address

31H

30H

Function Code

33H

Function Code

30H

32H

30H

*Register Number

30H

*Register

Number

30H

41H

Data Length

(Byte)

41H

Data Length

31H

?

34H

DATA Number

?

CHECK

SUM

0DH END

*Send out the data from

200H~209H, total 40 Byte

0AH END

?

CHECK SUM

0DH END

0AH END

RTU Mode

PC Æ INV(PLC) INV(PLC)ÆPC

01H Address

10H Function Code

03H Function Code

02H

00H

* Register Code

00H

* Register Code

00H

0AH

Data Length

0AH

Data Length

14H

DATA Number

? CRC High Byte

? CRC Low Byte*end out the data from 200H~209H,

total 20 Byte

? CRC High Byte

? CRC Low Byte

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6.4 Function block write

6.4.1 Timer function block write

ASCII Mode

PC ÆINV(PLC) INV(PLC) ÆPC

3AH STX

30H

31H

Address

31H

Address

31H

30H

Function Code

30H

Function Code

30H

32H

36H

34H

*Register Number

34H

*Register

Number

30H

34H

Data Length

(Byte)

34H

Data Length

30H

?

38H

DATA Number

?

CHECK

SUM

0DH END

0AH END

*Send out the data from

264H~267H, total 16 Byte

?

CHECK SUM

0DH END

0AH END

RTU Mode

PC Æ INV(PLC) INV(PLC)ÆPC

01H Address

10H Function Code

02H

64H

* Register Code

64H

* Register Code

00H

04H

Data Length

04H

Data Length

08H

DATA Number

? CRC High Byte

? CRC Low Byte*Send out the data from 264H~267H,

total 8 Byte

? CRC High Byte

? CRC Low Byte

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6.4.2 Counter function block write

ASCII Mode

PC Æ INV(PLC) INV(PLC) ÆPC

3AH STX

30H

31H

Address

31H

Address

31H

30H

Function Code

33H

Function Code

30H

32H

38H

43H

*Register Number

43H

*Register

Number

30H

33H

Data Length

(Byte)

33H

Data Length

30H

?

36H

DATA Number

?

CHECK

SUM

0DH END

0AH END

*Send out the data from

28CH~28EH, total 12 byte

?

CHECK SUM

0DH END

0AH END

RTU Mode

PC Æ INV(PLC) INV(PLC)ÆPC

01H Address

10H Function Code

02H

8CH

* Register Code

8CH

* Register Code

00H

03H

Data Length

03H

Data Length

06H

DATA Number

? CRC High Byte

? CRC Low Byte*Send out the data from 28CH~28EH,

total 6 Byte

? CRC High Byte

? CRC Low Byte

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6.4.3 Encoder function block write

ASCII Mode

PC ÆINV(PLC) INV(PLC) ÆPC

3AH STX

30H

31H

Address

31H

Address

31H

30H

Function Code

33H

Function Code

30H

32H

41H

43H

*Register Number

43H

*Register

Number

30H

34H

Data Length

(Byte)

34H

Data Length

30H

?

38H

DATA Number

?

CHECK

SUM

0DH END

0AH END

*Send out the data from

2ACH~2AFH, total 16 Byte

?

CHECK SUM

0DH END

0AH END

RTU Mode

PC Æ INV(PLC) INV(PLC)ÆPC

01H Address

10H Function Code

02H

ACH

* Register Code

ACH

* Register Code

00H

04H

Data Length

04H

Data Length

08H

DATA Number

? CRC High Byte

? CRC Low Byte* Send out the data from

2ACH~2AFH, total 8 Byte

? CRC High Byte

? CRC Low Byte

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6.4.4 Analog function block write

ASCII Mode

PCÆ INV(PLC) INV(PLC) ÆPC

3AH STX

30H

31H

Address

31H

Address

31H

30H

Function Code

33H

Function Code

30H

32H

43H

30H

*Register Number

30H

*Register

Number

30H

33H

Data Length

(Byte)

33H

Data Length

30H

?

36H

DATA Number

?

CHECK

SUM

0DH END

0AH END

* Send out the data from

2C0H~2C2H, total 12 Byte

?

CHECK SUM

0DH END

0AH END

RTU Mode

PC Æ INV(PLC) INV(PLC)ÆPC

01H Address

10H Function Code

02H

C0H

* Register Code

C0H

* Register Code

00H

03H

Data Length

03H

Data Length

06H

DATA Number

? CRC High Byte

? CRC Low Byte* Send out the data from

2C0H~2C2H, total 6 Byte

? CRC High Byte

? CRC Low Byte

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6.4.5 Control function block write

ASCII Mode

PCÆ INV(PLC) INV(PLC) ÆPC

3AH STX

30H

31H

Address

31H

Address

31H

30H

Function Code

33H

Function Code

30H

32H

43H

*Register Number

43H

*Register

Number

30H

36H

Data Length

(Byte)

36H

Data Length

30H

?

43H

DATA Number

?

CHECK

SUM

0DH END

0AH END

* Send out the data from

2CCH~2D1H, total 24 Byte

?

CHECK SUM

0DH END

0AH END

RTU Mode

PC Æ INV(PLC) INV(PLC)ÆPC

01H Address

10H Function Code

02H

CCH

* Register Code

CCH

* Register Code

00H

06H

Data Length

03H

Data Length

0CH

DATA Number

? CRC High Byte

? CRC Low Byte*Send out the data from

2CCH~2D1H, total 12 Byte

? CRC High Byte

? CRC Low Byte

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6.4.6 Coil status write

ASCII Mode

PCÆ INV(PLC) INV(PLCÆPC

3AH STX

30H

31H

Address

31H

Address

30H

36H

Function Code

36H

Function Code

30H

32H

46H

43H

*Register

Number

43H

*Register Number

*Data to be written to

16-Bit data

comprising of 4

ASCII codes

*Data to be written to

16-Bit data

comprising of 4

ASCII codes

?

CHECK SUM

?

CHECK SUM

0DH END

0AH END

RTU Mode

01H Address

06H Function Code

02H

FCH

* Register Code

FCH

* Register Code

*Data to be written to

16-Bit data

*Data to be written to

16-Bit data

? CRC High Byte

? CRC Low Byte

Note: Write to Coil Start code

INPUT 02FDH

TIMER 02FEH

COUNTER 02FFH

AUXI COIL 0300H

CONTROL

COIL

0301H

ANALOG 0302H

ENCODER 0302H

OUTPUT 0303H

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6.5 Inverter Control

6.5.1 Command Data (Readable and Writable)

Register No. Content

101H

Operation Signal

Bit Description 1 0

0 Operation Command Run Stop

1 Reverse Command Reverse Forward

2 External Fault Fault (EFO)

3 Fault Reset Reset

4 Jog Command Jog

5 Multi-function Command S1 ON OFF

6 Multi-function Command S2 ON OFF

7 Multi-function Command S3 ON OFF

8 Multi-function Command S4 ON OFF

9 Multi-function Command S5 ON OFF

A Multi-function Command S6 ON OFF

B Multi-function Command AIN ON OFF

C Multi-function Command RY1 ON OFF

D Multi-function Command RY2 ON OFF

E (Not used)

F (Not used)

102H

Frequency Command

103H~11FH

(Reserved)

Note: Write in zero for Not used BIT, do not write in data for the reserved register.

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6.5.2 Monitor Data (Only for reading)

Register No. Content

Bit Description 1 0

0 Operation state Run Stop

1 Direction state Reverse Forward

2 Inverter operation prepare state ready unready

3 Abnormal Abnormal

4 DATA setting error Error

5-F (unused)

120H

Fault Description

Code Description

00 The inverter is normal 01 Program abnormal(CPF)

02 EEPROM abnormal (EPR) 03 Over voltage ( OV )

04 Under voltage( LV ) 05 Inverter over heat ( OH )

06~09 (unused) 10 Over current during decelerating ( OC-D )

11 Over current during accelerating ( OC-A ) 12 Over current at constant speed ( OC-C )

13

Over voltage at constant speed / decelerating

( OV-C )

14 Inverter over heat at constant speed ( OH-C )

15 Inverter over speed ( OVSP ) 16 CPU interrupted ( CTER )

17 (OC_S) 18~19 (Unused)

20 Over current at stop( OC ) 21 Motor over load (OL1)

22 Inverter over load ( OL2 ) 23 Over torque detected ( OL3 )

24 Under voltage during running ( LV-C ) 25~27 (unused)

28 (unused) 29 (Err8)

30 Stop at 0 Hz( STP0 ) 31 Direct start disable ( STP1 )

32 Control panel emergency stop ( STP2 ) 33 Emergency stop ( E.S )

34 External BB( bb ) 35 Auto testing error( ATER )

36 PID feedback signal loss( PDER ) 37 Communication error(EFO)

38 Encoder signal loss ( ECER ) *1 39 Analog converting error(Err4)

40 Parameter locked( LOC ) 41 Keypad operation error ( Err1 )

42 Parameter setting error ( Err2 ) 43

Modifying the parameter in

communication( Err5 )

44 Communication failure ( Err6 ) 45 Parameter setting error ( Err7 )

121H

Note: Write in zero for Not used BIT

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Register No. Content

Bit Description 1 0

0 Terminal S1 Closed Opened

1 Terminal S2 Closed Opened

2 Terminal S3 Closed Opened

3 Terminal S4 Closed Opened

4 Terminal S5 Closed Opened

5 Terminal S6 Closed Opened

Sequence input

status

6 Terminal AIN Closed Opened

7~9 (unused)

A

Multi-function output1(RELAY1)

ON OFF

B

Multi-function output 1(RELAY2)

ON OFF

Contact output

C~F (unused)

122H

0123H

Frequency command

0124H

Output frequency

0125H

Output voltage command (1/1V)

0126H

Output DC voltage command (1/1V)

0127H

Output current (10/1A)

0128H

Reserved

0129H

Output torque

012AH

PID Feedback value (100% / Max output frequency, 10/1% )

012BH

PID input value (100% / Max output frequency, 10/1% , sign attached)

012CH

TM2 AIN input value (1024 / 10V) *1

012DH

TM2 AV2 input value (1024 / 10V) *1

Note: Write in zero for Not used BIT

Note: Do not write in data for the reserved register

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6.5.3 Read the data in the holding register [03H]

Master unit reads the contents of the holding registers with the continuous numbers for the specified

quantity.

(Example) Read the SLAVE station No: 01, 7300CV drive's frequency command.

ASCII Mode

Instruction Message Response Message (Normal) Response Message (Fault)

3AH

STX

3AH

STX

3AH

STX

30H 30H 30H

31H

SLAVE Address

31H

SLAVE Address

32H

SLAVE

Address

30H 30H 38H

33H

Function

Code

33H

Function

Code

33H

Function

Code

30H 30H 35H

31H 32H

DATA

number

32H

Error Code

32H 31H 0DH

33H

Start Address

37H 0AH

END

30H 37H

30H 30H

First holding

register

30H ?

31H

Quantity

?

LRC CHECK

? 0DH

?

LRC CHECK

0AH

END

0DH 0AH

END

RTU Mode

Instruction Message Response Message (Normal) Response Message (Fault)

SLAVE Address

01 H SLAVE Address 01H SLAVE Address 02H

Function Code

03H Function Code 03H Function Code 83H

High

01H DATA number 02H Error Code 52H

Start Address

Low

23H

High

17H

High

C0H

High

00H

First holding

register

Low

70H

CRC-16

Low

CDH

Quantity

Low

01H

High

AFH

High

74H

CRC-16

Low

82H

CRC-16

Low

3CH

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6.5.3 Loop back testing [08H]

The function code is check communication between MASTER and SLAVE, the Instruction message is

returned as a response message without being change, Any values can be used for test codes or data

ASCII Mode

Instruction Message Response Message (Normal) Response Message (Fault)

3AH STX 3AH STX 3AH STX

30H 30H 30H

31H

SLAVE

Address

31H

SLAVE

Address

31H

SLAVE

Address

30H 30H 38H

38H

Function

Code

38H

Function

Code

38H

Function

Code

30H 30H 32H

30H 30H 30H

Error Code

30H 30H ?

30H

Test Codes

30H

Test Codes

?

LRC CHEC

0DH

41H 41H

0AH

END

35H 35H

33H 33H

37H

DATA

37H

DATA

? ?

?

LRC CHECK

?

LRC CHECK

0DH 0DH 0AH

END

0AH

END

RTU Mode

Instruction Message Response Message (Normal) Response Message (Fault)

SLAVE Address 01 H SLAVE Address 01H SLAVE Address 01H

Function Code 08H Function Code 08H Function Code 88H

High

00H

High

00H Error Code 20H Test

Codes

Low 00H

Test

Codes

Low 00H

High

47H

High

A5H

High

A5H

CRC-16

Low

D8H

DATA

Low

37H

DATA

Low

37H

High

DAH

High

DAH

CRC-16

Low

8DH

CRC-16

Low

8DH

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6.5.3 Write holding register [06H]

The specified data are written into the specified holding register.

(Example) Set SLAVE station No: 01, 7300CV drive's frequency command is 60.0Hz.

ASCII Mode

Instruction Message Response Message (Normal) Response Message (Fault)

3AH STX 3AH STX 3AH STX

30H 30H 30H

31H

SLAVE

Address

31H

SLAVE

Address

31H

SLAVE

Address

30H 30H 38H

36H

Function Code

36H

Function

Code

36H

Function

Code

30H 30H 35H

31H 31H 32H

Error Code

30H 30H ?

32H

Start Address

32H

Start Address

?

LRC CHECK

0DH

31H 31H

0AH

END

37H 37H

30H

DATA

30H

DATA

? ?

?

LRC CHECK

?

LRC CHECK

0DH 0DH 0AH

END

0AH

END

RTU Mode

Instruction Message Response Message (Normal) Response Message (Fault)

SLAVE Address 01 H SLAVE Address 01H SLAVE Address 01H

Function Code 06H Function Code 06H Function Code 86H

High

01H

High

01H Error Code 52H Start

Address

Low 02H

Start

Address

Low 02H

High

C3H

High

17H

High

17H

CRC-16

Low

9DH

DATA

Low 70H

DATA

Low 70H

High

27H

High

27H

CRC-16

Low E2H

CRC-16

Low E2H

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6.5.3Write in several holding registers [10H]

Specified data are written into the several specified holding registers from the specified number,

respectively.

(Example) Set SLAVE station No: 01, 7300CV drive as forward run at frequency reference 60.0Hz

ASCII Mode

Instruction Message Response Message (Normal) Response Message (Fault)

3AH

STX

3AH

STX

3AH

STX

30H 30H 30H

31H

SLAVE Address

31H

SLAVE Address

31H

SLAVE

Address

31H 31H 39H

30H

Function

Code

30H

Function

Code

30H

Function

Code

30H 30H 35H

31H 31H 32H

Error Code

30H 30H ?

31H

Start Address

31H

Start Address

?

LRC CHECK

0DH

30H 30H

0AH

END

30H 30H

32H

Quantity

32H

Quantity

30H ?

34H

DATA

Number*

?

LRC CHECK

30H 0DH 30H 0AH

END

30H

31H

First DATA

31H

37H

30H

Next DATA

?

LRC CHECK

0DH 0AH

END

* Data numbers are the actual number times 2

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RTU Mode

Instruction Message Response Message (Normal) Response Message (Fault)

SLAVE Address

01 H

SLAVE Address

01H

SLAVE Address

01H

Function Code

10H

Function Code

10H

Function Code

90H

High

01H

High

01H

Error Code

52H

Start

Address

Low

01H

Start

Address

Low

01H

High

CDH

High

00H

High

00H

CRC-16

Low

FDH

Quantity

Low

02H

Quantity

Low

02H

DATA Number *

04H

High

11H

High

00H

CRC-16

Low

F4H

First DATA

Low

01H

High

17H

Next DATA

Low

70H

High

60H

CRC-16

Low

27H

* Data numbers are the actual number times 2

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Comparison list between parameter and register

Register

No.

Function

Register No. Function

0000H

0-0

0023H

3-11

0001H 0-1 0024H 3-12

0002H 0-2 0025H 3-13

0003H 0-3 0026H 3-14

0004H 0-4 0027H 3-15

0005H 0-5 0028H 3-16

0006H 0-6 0029H 3-17

0007H 0-7 002AH 3-18

0008H 0-8 002BH 3-19

0009H

1-0

002CH

3-20

000AH

1-1

002DH

3-21

000BH

1-2

002EH

3-22

000CH

1-3

002FH

4-0

000DH

1-4

0030H

4-1

000EH

1-5

0031H

4-2

000FH

1-6

0032H

4-3

0010H

1-7

0033H

4-4

0011H

2-0

0034H

4-5

0012H

2-1

0035H

5-0

0013H

2-2

0036H

5-1

0014H

2-3

0037H

5-2

0015H

2-5

0038H

5-3

0016H

2-6

0039H

5-4

0017H

2-7

003AH

5-5

0018H

3-0

003BH

5-6

0019H 3-1 003CH 5-8

001AH 3-2 003DH 5-7

001BH 3-3 003EH 6-0

001CH 3-4 003FH 6-1

001DH 3-5 0040H 6-2

001EH 3-6 0041H 6-3

001FH 3-7 0042H 6-4

0020H

3-8

0043H

6-5

0021H

3-9

0044H 6-6

0022H 3-10 0045H 6-7

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Register

No.

Function

Register No. Function

0046H

6-8

0069H

10-6

0047H

7-0

006AH

10-7

0048H

7-1

006BH

10-8

0049H

7-2

006CH

10-9

004AH

7-3

006DH

11-0

004BH

7-4

006EH

11-1

004CH

7-5

006FH

11-2

004DH

8-0

0070H

11-3

004EH

8-1

0071H

11-4

004FH

8-2

0072H

11-5

0050H

8-3

0073H

11-6

0051H

8-4

0074H

11-7

0052H

8-5

0075H

12-0

0053H

9-0

0076H

12-1

0054H

9-1

0077H

12-2

0055H

9-2

0078H

12-3

0056H

9-3

0079H

12-4

0057H

9-4

007AH

12-5

0058H

9-5

007BH

12-6

0059H

9-6

007CH

13-0

005AH

9-7

007DH

13-1

005BH

9-8

007EH

13-2

005CH

9-9

007FH

13-3

005DH

9-10

0080H

13-4

005EH

9-11

0081H

14-0

005FH 9-12 0082H 14-1

0060H 9-13 0083H 14-2

0061H 9-14 0084H 14-3

0062H 9-15 0085H 14-4

0063H 10-0 0086H 15-0

0064H 10-1 0087H 15-1

0065H 10-2 0088H 15-2(1)

0066H

10-3

0089H

15-2(2)

0067H

10-4

008AH 15-2(3)

0068H 10-5 008BH 15-3

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Register

No.

Function

Register No. Function

008CH

15-4

00AFH ~

008DH

15-5

00B0H ~

008EH

15-6

00B1H ~

008FH

00B2H ~

0090H

3-23

00B3H ~

0091H

3-24

00B4H ~

0092H

3-25

00B5H ~

0093H

3-26

00B6H ~

0094H

3-27

00B7H ~

0095H

3-28

00B8H ~

0096H

3-29

00B9H ~

0097H

5-9

00BAH ~

0098H

~

00BBH ~

0099H

2-4

00BCH ~

009AH

2-8

00BDH ~

009BH

12-7

00BEH ~

009CH

12-8

00BFH ~

009DH

4-6

00C0H ~

009EH

5-10

00C1H ~

009FH

5-11

00C2H ~

00A0H ~ 00C3H ~

00A1H ~ 00C4H ~

00A2H ~ 00C5H ~

00A3H ~ 00C6H ~

00A4H ~ 00C7H ~

00A5H ~ 00C8H ~

00A6H ~ 00C9H ~

00A7H ~ 00CAH ~

00A8H ~ 00CBH ~

00A9H ~ 00CCH ~

00AAH ~ 00CDH ~

00ABH ~ 00CEH ~

00ACH ~ 00CFH ~

00ADH ~ 00D0H ~

00AEH ~ 00D1H ~

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Register

No.

Function

Register No. Function

00D2H

~

00F7H ~

00D3H ~ 00F8H ~

00D4H ~ 00F9H ~

00D5H ~ 00FAH ~

00D6H ~ 00FBH ~

00D7H ~ 00FCH ~

00D8H ~ 00FDH ~

00D9H ~ 00FEH ~

00DAH ~ 00FFH ~

00DBH ~

00DCH ~

00DDH ~

00DEH ~

00DFH ~

00E0H ~

00E1H ~

00E2H ~

00E3H ~

00E4H ~

00E5H ~

00E6H ~

00E7H ~

00E8H ~

00E9H ~

00EAH ~

00EBH ~

00ECH ~

00EDH ~

00EEH ~

00EFH ~

00F0H ~

00F1H ~

00F2H ~

00F3H ~

00F4H ~

00F5H ~

00F6H ~

TECO 7300CV User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual