Hi every one
i want to send positions to go for x , y and z axis to go in the first of each block to start.
for instance sending "TOGOX" with modbus at the first of block exactly.
do you know any method to send "TOGOX" at the first of block with no defect.
thanks

i want to send modbus data "TOGOX" at the first of block, so Brain of mach3 should read the registery of "TOGOX" when  "ISMOVING" contact in brain is activated or block should start when "TOGOX" is read .
how can i do so in mach3 plc?

Can we use Mach3 PLC to Syncrone it to Modbus sending data?
exactly i want to have "TOGOX" , "TOGOY" , "TOGOZ" , "XFEED" , "YFEED" , "ZFEED" and "SPINDLE RPM" at the fierst of every Block.
PLEASE Help me to do it.
Thanks

can i syncron modbus data sending by mach3 plc or i should use mach3 plugin for it ?

is ther any one to continue this post?
i wish to cntinue this post with any one can help me.

The Mach3 Modbus is NOT synced it sends and receives WHEN it can.

(;-) TP

also, you can't send "directly" at least, floating point numbers over modbus.

Scott

tanks for replay and sorry for my english language .
the floating point is not my problem, because i multiply it in 1000 and send.
now i know that modbus sends data in a timer interrupt of mach3 engine, so i'm working on plugin writing in VS2008 and sed data to a electrical node with ethernet connection .
if you wish to take part in it, make me happy.