Interact with Heidenhain TNC155B RS232 Interface

[rrbmachining]

I am having trouble getting the link set up between my PC running TNCremoNT and my TNC155B controller. Im certain the pc end is ok but am unsure what lead to use, the pc has a 9 pin din and the TNC is a 25 pin. Should i be using a lead for software or hardware handshake ?

Also i am not sure if the controller is set up correctly to see the peripheral device

Any help would be much appreciated

richard
rrbmachining@yahoo.co.uk

[gus]

first you have to tell us what error you are getting

to convert to the 9 pin you need to jump two pins and I don't hve that in front of me. The tnc wants to see the handshaking, so is it cts and rts, I think lookin a the diagram on the other thread, pins 4 and 5 on the 25 pin are jumped together, then 2 and 3 are crossed. My old 145 wanted 7 bits, 1 stop bit even parity but I think that is changeable on other controls

[awemawson]

Originally Posted by rrbmachining I am having trouble getting the link set up between my PC running TNCremoNT and my TNC155B controller. Im certain the pc end is ok but am unsure what lead to use, the pc has a 9 pin din and the TNC is a 25 pin. Should i be using a lead for software or hardware handshake ? Also i am not sure if the controller is set up correctly to see the peripheral device Any help would be much appreciated richard rrbmachining@yahoo.co.uk

If you go back there is a recent thread where I put in the specific cable wiring for this.

AWEM

[awemawson]

Here you go::::::

Download TNC REMO from Heidenhain's site - set it up and run TNCSERVER

Make up a cable from 25way TNC151B to 9 way PC as follows:


(25way TNC) <9 way PC>
(2) - <2>
(3) - <3>
(4) - <8>
(5) - <7>
(6) - <4>
(7) - <5>
(20) - <6>

The TNC RS232 interface can exist in three modes - "EXT", "ME", and "FE" selected via the 'MOD' key - it should be in "FE"

File names & extensions ARE important in block mode transmission. 123.H = program 123 in Heidenhain conversational code and 123.I is program 123 in ISO-Gcode

When set up like the above it will work - it took me ages to sort it but now all is reliable.

[rrbmachining]

Thanks for all the replies, I will give it another try today

With regard to the last reply from awemawson, shouldn't pins 2 and 3 get transposed in the cable ?. I found that diagram after a lot of searching on page 3-5 of the Heidenhain data interface manual, however there appears to be a discrepency between the two drawings

richard
rrbmachining@yahoo.co.uk

[awemawson]

Originally Posted by rrbmachining Thanks for all the replies, I will give it another try today With regard to the last reply from awemawson, shouldn't pins 2 and 3 get transposed in the cable ?. I found that diagram after a lot of searching on page 3-5 of the Heidenhain data interface manual, however there appears to be a discrepency between the two drawings richard rrbmachining@yahoo.co.uk

No that's the way 9 and 25 way do it !

Pin 2 is transmit data on 25 pin and received data on a 9 pin
Pin 3 is received data on a 25 pin and transmit data on a 9 pin

Look at Pin Assignments here :

http://www.camiresearch.com/Data_Com...#anchor1155222

AWEM

[rrbmachining]

thanks for that andrew, that could explain alot, i will give it a try later for sure

richard

[rrbmachining]

Well im making some proress thanks to all the help i have had, the TNC now seems to talk to the pc running tncserver as the link goes active when i try to transfer a file, however the file does not appear on the pc so i guess the transfer is not complete or corrupt, from what i can see the settings match at the tnc and the pc, anymore thoughts anyone ?

richard
rrbmachining@yahoo.co.uk

[awemawson]

Originally Posted by rrbmachining Well im making some proress thanks to all the help i have had, the TNC now seems to talk to the pc running tncserver as the link goes active when i try to transfer a file, however the file does not appear on the pc so i guess the transfer is not complete or corrupt, from what i can see the settings match at the tnc and the pc, anymore thoughts anyone ? richard rrbmachining@yahoo.co.uk

TNC server should say 'awaiting request' when it has seen a valid RS232 connection, otherwise it will say 'no connection' Does TNC server start counting up blocks as the transfer starts? Have you set up the folder option on TNCserver to tell it where to put the file?

AWEM

[rrbmachining]

TNC server does say awiting request, the server does have a folder defined but when i try to transfer a file the status goes active for about 5 seconds and nothing happens in the bottom 4 fields of the server window. Maybe its something to do with the file name or extension but as yet i have not worked out how to check this

richard
rrbmachining@yahoo.co.uk

[awemawson]

Originally Posted by rrbmachining TNC server does say awiting request, the server does have a folder defined but when i try to transfer a file the status goes active for about 5 seconds and nothing happens in the bottom 4 fields of the server window. Maybe its something to do with the file name or extension but as yet i have not worked out how to check this richard rrbmachining@yahoo.co.uk

You do have the TNC155 in 'FE' mode and the TNCserver in FE/ME mode don't you? What happens if you try to upload a file? (if in conversational mode the file must be a number with an .H extension and if in Iso mode a number with a .I extension ie 300.H or 300.I - I don't think you can use anything other than numbers for file names, but the number doesn't have to correspond with the program number embeded in the code iirc

AWEM

[rrbmachining]

The TNC155 is in FE mode and the server software set to send/recieve FE. I cant try to upload as i have no files on the server

richard
rrbmachining@yahoo.co.uk