Compiling Altivar VFD Modbus comp

Hi
i tried the sniffer you provided

socat -d -d PTY: PTY

halrun:
loadusr -W atv_vfd -g -r 19200 -s 1 -t 1 -v -d /dev/pts/5

setp atv_vfd.spindle-on 1

cat /dev/pts/6

No results at all from cat

if you can try the same on 2.8 it would be very appreciated!

You _must_ set atv_vfd.enable to 1 otherwise nothing at all happens.

here is the source-code

Hi
Oh now where getting some errors at least


halcmd: setp atv_vfd.enable 1
halcmd: read_data: reading setup parameters:


ERROR invalid crc received 208 - crc_calc 5846

main: read_data retval=-16


ERROR Communication time out

main: write_data retval=-16
read_data: reading setup parameters:


ERROR Communication time out

main: read_data retval=-12


ERROR Communication time out

main: write_data retval=-12
read_data: reading setup parameters:

i gave in and hooked the VFD up with analog control, maybe someone will get it running in the future.

Controling  Altivar VFD ATV 310. I am using the driver provided by @dgarrett with slight modification.
and  its works

Don't forget to set the parameters in ATV 310

• 401 : Reference Channel 1 = 164 (for modbus)
• 406 : Channel Configuration = 02 (for separate mode)
• 407 : Command Channel 1 = 10 (for modbus)
• 701 : Modbus Address = 01
• 302 : Rated Motor Power = Nominal motor power given on the nameplate, in kW
• 304 : Rated Motor Voltage = Nominal motor voltage is given on the nameplate, in V.
• 305 : Rated Motor Current = Nominal motor current is given on the nameplate, in A.
• 306 : Rated Motor Frequency = Nominal motor frequency is given on the nameplate, in Hz.
• 307 : Rated Motor Speed = Nominal motor speed is given on the nameplate, in RPM.