Interact with a CNC in rs232

[vloz]

Hey everyone,

i am currently trying to make a software that could centralize the cnc programs on a server, each cnc have a computer connected (with my software) through the RS232 port.

I would like to know if there is any way to send file without using TNCremoNT?

I know how to send message through the rs232 port with my program, but what should i send to begin a file sending??? Does there is any usual protocol to do this?

BTW, Does there is any software that simulate cnc rs232 i/o?

Most of my cnc are HERMLE C800U...

Thank you for reading!

[Algirdas]

there is a lot of RS232 simulation software.
RS232 by itself doesn't describes software level transmission start protocol. You command manually receive send on both ends or or define one end as allways master.
The solution of RS232 "network" is made already. There are some systems, where network server listens all the ports all the time. Operator from machine tool side sends file to server. File includes the name of required part program. Server sends the file instantly.
Gateways RS232 <=> Ethernet are used there.

[vortxx]

As Algirdas already explained you will need to setup your software to always receive files from the CNC control. The operator at the machine then sends a file with information that tells the software what to do. The software will then execute the appropriate routines depending on the commands sent to it from the machine operator. Generally if requesting a file there will be a delay allowing the machine operator to enter a receive mode before the software begins sending the file. I have used this method in the past using multi-dnc software and fanuc based CNC controllers.

Take a look at this software... DNC Software, Wireless DNC, DNC System, DNC Communications - Multi-DNC.com