Emerson EV2100 Series, Руководство пользователя

Страница: 6 / 7

Appendix 3 Parameters of Accessories 125
EV2100 Series Variable Speed Drive User Manual
{
int i;
unsigned crc_result=0xffff;
while(length--)
{
crc_result^=*data++;
for(i=0;i<8;i++)
{
if(crc_result&0x01)
crc_result=(crc_result>>1)^0xa001;
else
crc_result=crc_result>>1;
}
}
return (crc_result=((crc_result&0xff)<<8)|(crc_result>>8));
}
8 Application examples
To start No.5 drive and make it rotate forward with a speed of 50.00HZ (expressed as 5000 internally), the
command is as follows:
Addre
ss
Function
code
Register
address
Number of
registers
Number of bytes of
register content
Register content Checksum
Reque
st
0x05 0x10 0x3200 0x0002 0x04 0x01C7,0x1388 0x16A9
Respo
nse
0x05 0x10 0x3200 0x0002 None None 0x4EF4
The No.5 drive stops at its fastest speed:
Address Function code Register address Register content Checksum
Request 0x05 0x06 0x3200 0x00C3 0xC6A7
Response 0x05 0x06 0x3200 0x00C3 0xC6A7
No.5 drive jog-forward:
Address Function code Register address Register content Checksum
Request 0x05 0x06 0x3200 0x00D0 0x876A
Response 0x05 0x06 0x3200 0x00D0 0x876A
No.5 drive jog-stop:
Address Function code Register address Register content Checksum
Request 0x05 0x06 0x3200 0x00C0 0x86A6
Response 0x05 0x06 0x3200 0x00C0 0x86A6
No.5 drive failure reset: