Delta DTE10T Series, Инструкция

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
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.
Call 1(800)985-6929 for Sales deltaacdrives.com sales@deltaacdrives.com
Call 1(800)985-6929 for Sales deltaacdrives.com sales@deltaacdrives.com