Delta DTE10T Series Specifications download pdf (Page 12)

- 12 -

 ASCII Mode

Read Command Read Response Message Write Command Write Response Message

Start word ’:’ Start word ’:’ Start word ’:’ Start word ’:’

Machine address 1 ‘0’ Machine address 1 ‘0’ Machine address 1 ‘0’ Machine address 1 ‘0’

Machine address 0 ‘1’ Machine address 0 ‘1’ Machine address 0 ‘1’ Machine address 0 ‘1’

Command 1 ‘0’ Command 1 ‘0’ Command 1 ‘0’ Command 1 ‘0’

Command 0 ‘3’ Command 0 ‘3’ Command 0 ‘6’ Command 0 ‘6’

‘1’ ‘0’ ‘1’ ‘1’

‘0’

Length of response data

(byte)

‘4’ ‘0’ ‘0’

‘0’ ‘0’ ‘0’ ‘0’

Read start address of

data/bit

‘0’ ‘1’

Data address

‘1’

Data address

‘1’

‘0’ ‘F’ ‘0’ ‘0’

‘0’

Data content in H1000

‘4’ ‘3’ ‘3’

‘0’ ‘0’ ‘E’ ‘E’

Read length of data/bit

(word/bit)

‘2’ ‘0’

Write data content

‘8’

Write data content

‘8’

LRC1 check ‘E’ ‘0’ LRC1 check ‘F’ LRC1 check ‘F’

LRC0 check ‘A’

Data content in H1001

‘0’ LRC0 check ‘D’ LRC0 check ‘D’

End word 1 CR LRC1 check ‘0’ End word 1 CR End word 1 CR

End word 0 LF LRC0 check ‘3’ End word 0 LF End word 0 LF

End word 1 CR

End word 0 LF

 LRC Check

Sum up the contents from “machine address” to “data content”, e.g. H01 + H03 + H10 + H00 + H00 + H02 = H16. Obtain 2’scomplement H

EA.

 RTU Mode

Read Command Read Response Message Write Command Write Response Message

Machine address H01 Machine address H01 Machine address H01 Machine address H01

Command H03 Command H03 Command H06 Command H06

H10 H10 H10

Read start address of data

H00

Length of response data

(byte)

H04 Write data address

H01

Write data address

H01

H00 H01 H03 H03

Read length of data

(bit/word)

H02

Data content 1

HF4

Write data content

H20

Write data content

H20

CRC low byte HC0 H03 CRC low byte HDD CRC low byte HDD

CRC high byte HCB

Data content 2

H20 CRC high byte HE2 CRC high byte HE2

CRC low byte HBB

CRC high byte H15

CRC (Cyclical Redundancy Check) is obtained by the following steps:

unsigned int reg_crc = 0xffff;

i = 0;

while (length--)

{ reg_crc ^= RTUData[i];

i ++;

for (j = 0; j < 8; j++)

{ if (reg_crc & 0x01) reg_crc = (reg_crc >> 1) ^ 0xA001;

else reg_crc = reg_crc >> 1;

}

return(reg_crc);

Software for Setting up Communication on PC: Download the free software on Delta’s website.

1 2 ... 7 8 9 10 11 12 13

Comments to this Manuals

No comments

Delta DTE10T Series Specifications Page 12

Comments to this Manuals

Related products and manuals for Unknown Delta DTE10T Series