jrkerr-Labview

[shamen]

hello

i trying to control servo motors .The control hardware is a JR Kerr PIC servo SC.

In a LR Kerr website , i found a Labview program to move only one servo.

i have 6 mottors, and i can't find where in the vi i can change the addresses of the boards.

maybe somebody have an experiment whith this board and can help me.

 http://www.jrkerr.com/boards.html

http://www.jrkerr.com/software.html

thanks  

[Alpesh]

hi shamen,

i am not able to find that vi. but i go through that link and i think modbus (rs485-422 functions) used in d vi.

if u send me that vi, then i can help u better. 

[shamen]

hi,

i attached the vi and it's explanation .

thanks

[Alpesh]

hi shamen,

PIC-Command.vi has one control named 'Address' is always zero. so by using that control u can easily control multiple drives.

when you connect multiple devices on rs-485, you have to configure each device with different ID and fill address control with it.

[shamen]

hi

I'm trying to change the address in the PIC command but it's not works.

 i think that i don't understand how to do it.

can you please axplain me what i have to change?

in the front panel i tried to change the address from 0 to 1. is it all or i have to change something else?

[Alpesh]

hi shamen,

i go through the demo.vi and there is no other option for device address.

please tell me

can you connect multiple RS485 devices in daisy chain?

r you able to set different ID on each RS485 module? (please set different id on each devices.)

if yes then enter that device ID in PIC-Command.vi

actually serial control.vi passes header first and then passes device ID. so every devices on daisy chain will recieve this command. but only one device will respond, which has that device ID.

[shamen]

hello,

when i am controlling the servos i use PIC-SERVO TESTER.vi by this i can move only the last servo.

you wrote that you use demo.vi, what should i do with that demo?

when i tryin to run the demo i get error massage :Error 1 occurred at RS232 Timed Out

thanks for your help

[OMGlaserPewPew]

Hello,

I'm having trouble with the same controller board right now. I'm trying to change the location from a serial port to a USB port. Do you have any ideas on how to do this? I get the same time-out error every time I've used it.

Thanks,

Justine

[Ipshita_C]

Can you provide a little more detail about the error itself and possibly a screenshot? Thanks!

Ipshita C.

[FFRR]

regards all

Actually I have the same ploblem someone knows that originates

thanks for your help