Mitsubishi FR - S500 Data format, Reply data from inverter to computer during data write, 121

REMARKS

*1. Setting any of "0.1" to "999" in Pr. 37 "speed display" and "1" in data code "HFF" sets the data format to A" or E" (6-digit data).

Also, the output frequency turns to a speed display, which is valid in 0.01r/min increments. (The third decimal place is invalid.)

If the data code "HFF" is other than "1", the display is in 1r/min increments and a 4-digit data format can be used.

Reply data is given in format E if the requested monitor data has 4 digits, in format E' if the data has 2 digits, or in format E" if the data has 6 digits.

*2. The data format to read/write Pr. 37 "speed display" is always E"/A" (6-digit data).

(3) Data format

Data used is hexadecimal.

Data is automatically transferred in ASCII between the computer and inverter. Data format types

1) Communication request data from computer to inverter

[Data write]

Inverter

Instruction

Waiting time

Format A

ENQ

Data

check

*4

number

*3

station

Sum

code

Number of

1

2

3

4

5

6

7

8

9

10

11

12

13

characters

ENQ

Inverter

*5

check

Format A'

number

Instruction

Waiting time

Data

*4

*3

station

Sum

code

Format A"

[Data read] Format B

1	2		3	4		5
*3		Inverter			Instruction
ENQ		station				code
		number
1	2		3	4		5
*3		Inverter			Instruction
		station
ENQ		number				code
1	2		3	4		5

6 7 8 9 10 11		Number of characters
Waiting time	Data		Sum	*4
			check		Number

67 8 9 10 11 12 13 14 15 of characters

Waiting time
*5	Sum	*4
	check
6 7 8		9	Number of characters

2) Reply data from inverter to computer during data write

[No data error detected] [Data error detected]

Format C

	*3	Inverter
	ACK	station	*4		Format D
		number
				Number
1		2 3	4
				of

characters

*3	Inverter	Error
	station		*4
NAK	number	code		Number
1	2 3	4	5
				of

characters

3) Reply data from inverter to computer during data read		2
[No data error detected]	[Data error detected]

Format E

Format E'

Format E''

	*3	Inverter			Read			*3	Sum		*4
	STX	station			data			ETX	check
		number
1		2	3	4	5	6	7	8	9	10	11		Format F
	*3	Inverter		Read		*3	Sum							*3		Inverter	Error
		station							*4		Number					station		*4
	STX	number		data		ETX	check					of		NAK		number	code
1		2	3	4	5	6	7	8	9		characters 1					2 3	4	5
	*3	Inverter				Read				*3	Sum		*4
	STX	station				data				ETX	check
		number													Number of
1		2	3	4	5	6	7	8	9	10	11	12	13
															characters

121