Fanuc 10ma Drip Feed Directions

[cncNewGuy]

First post and glad to be here! So far these forums have been incredibly useful. Information on this site about this controller has played a huge factor in being able to send programs to this machine.
We are a small machine shop in colorado that until recently was hand programming a Mori 3-axis mill that has an old Fanuc 10 controller. I've been able to use ConnectCNC to send programs back and forth but as you all know there is hardly any space in this old controller and surfacing is currently out of the question.

Long story short after searching the forums i can't find an answer to:

a. how do you enable drip feed on this controller (if possible, this machine has a tape mode and a tape reader installed.)

b. This machine may have been drip fed in the past, if so, what is the procedure to get the controller to start accepting code? I've read tape mode then cycle start, but that seems to have no effect on our machine.

Thank you for all your help!

Oh we are also using a 9 to 25 pin cable W/O hardware handshaking.

[angelw]

Originally Posted by cncNewGuy First post and glad to be here! So far these forums have been incredibly useful. Information on this site about this controller has played a huge factor in being able to send programs to this machine. We are a small machine shop in colorado that until recently was hand programming a Mori 3-axis mill that has an old Fanuc 10 controller. I've been able to use ConnectCNC to send programs back and forth but as you all know there is hardly any space in this old controller and surfacing is currently out of the question. Long story short after searching the forums i can't find an answer to: a. how do you enable drip feed on this controller (if possible, this machine has a tape mode and a tape reader installed.) b. This machine may have been drip fed in the past, if so, what is the procedure to get the controller to start accepting code? I've read tape mode then cycle start, but that seems to have no effect on our machine. Thank you for all your help! Oh we are also using a 9 to 25 pin cable W/O hardware handshaking.

Just to confirm that you have the correct cable pin out, review the following:

Machine Side--------------------------PC Side
DB25 Male---------------------------DB9 Female
1------Shield-----------------------Not Connected
2--------------------------------------2
3--------------------------------------3
4
| bridged
5
7--------------------------------------5
6
|
8 all bridged
|
20

Set the following machine parameters
#0000
bit 0 = 0
bit 1 = 1
bit 2 = 0
bit 3 = 1
bit 4 = 0

#0020 = 1
#0021 = 1
#0022 = 1
#0023 = 1

#5001 = 3
#5110 = 3
#5111 = 2
#5112 = Baud Rate (10 = 4800) Starting Point

Machine Control Set Page Settings
I/O = 1
ISO Format = 1

PC Software settings
Handshake method = Xon Xoff (software)
Data bits = 7
Stop bits = 2
Parity bit = Even
Baud Rate = Same as machine setting (4800) starting point.

If you satisfy all of the above, DNC should be able to be initiated by setting the machine to Tape Mode, set the PC software to send and wait for an Xon from the machine (if the software has that option) and press Cycle Start at the machine control to start the process.

All functions, such as single block, block delete, feed fold, optional stop etc, work as per normal. The only limitation is that if the program uses Sub Programs, the Subs have to be loaded in the Machine Control memory.

Regards,

Bill

[cncNewGuy]

Excellent thank you for the detailed reply! Will cross my fingers and give her a shot tomorrow

[Swemill]

You say that your machine has "tape mode", but do you see tape mode on screen when it is selected?
In my case i have to switch my "edit-safekey" and run in "Edit" instead of memory to be able to dripfeed, but i dont have any tapemode on the mode selector.

[mroy0404]

Originally Posted by Swemill You say that your machine has "tape mode", but do you see tape mode on screen when it is selected? In my case i have to switch my "edit-safekey" and run in "Edit" instead of memory to be able to dripfeed, but i dont have any tapemode on the mode selector.

I also have a Fanuc 10m with no tape mode on the selactor, could you please explain in more detail how you got dripfeed to work. I currently use RS232 to upload and download from the machine now.

[cncNewGuy]

Ah Bill thank you for the reply! worked absolutely perfect. Fought us at first, spitting our a Framing Error but that was user error on my end and the post i'm using.

@swemill

Yes my machine has a dedicated Tape Mode key that when toggled appears on screen. Edit on my machine was used only for sending and receiving from the pc.

@mroy0404

I don't have enough experience with other controllers but from what i've been reading on other threads it's as swemill stated running in edit may work in your case. I believe that the tape mode and tape reader were options available to the machine builder when the machine was manufactured

[cncNewGuy]

Bill if you wouldn't mind answering a couple other questions. I've got our software set to "wait for xon" and it appears that the pc is not receiving the command from the machine. With this option off i can drip just fine but the machine starts several lines into the code as the pc just starts feeding immediately. Is there any parameter i need to enable to make the machine send the xon command? Or could this be a problem with the cable i am using? (pinout is correct). Also our par #0000 has a couple extra bits than what you listed, should they be zeros? (ie you listed 4 bits and the controller has 8 bits.)

Thank you again for the help! So far this has been the only
information i've been able to find that has worked.


EDIT: pinout of the cable is correct but our cable is extremely long if that makes a difference.

[angelw]

Originally Posted by cncNewGuy Bill if you wouldn't mind answering a couple other questions. I've got our software set to "wait for xon" and it appears that the pc is not receiving the command from the machine. With this option off i can drip just fine but the machine starts several lines into the code as the pc just starts feeding immediately. Is there any parameter i need to enable to make the machine send the xon command? Or could this be a problem with the cable i am using? (pinout is correct). Also our par #0000 has a couple extra bits than what you listed, should they be zeros? (ie you listed 4 bits and the controller has 8 bits.) Thank you again for the help! So far this has been the only information i've been able to find that has worked. EDIT: pinout of the cable is correct but our cable is extremely long if that makes a difference.

Only the bits of parameter #0000 I listed in my first post have to be set; leave the other bits set as "0"

For Xon Xoff handshaking (software handshaking), if parameter #5001 is set then its important that parameter #5110 is set to 3. Parameter #5110 specifies the I/O device. Setting 3 indicates that software control codes DC1 to DC4 are used and feed is not punched. The feed relates back to punching a Tape, where a leader and trailer component of the tape had to be produced; feed is not required for PC software. DC1 (17) and DC3 (19) are used for Xon Xoff control codes respectively. If this parameter is not set correctly the control codes may not be sent by the NC.

What cable length are you using?

The RS232`standard clearly states the maximum cable length is 50 feet, or the cable length equal to a capacitance of 2500 pF. This means that using a cable with low capacitance allows you to span longer distances without going beyond the limitations of the standard.

The cable length stated above is based on a maximum speed of 19200 baud rate. If speed is reduced by a factor 2 or 4, the maximum length increases dramatically. Texas Instruments conducted tests some years ago and developed the following guide. As can be seen, halving the maximum communication speed, the allowed cable length increases a factor ten!

Baud Rate-----------------------------------Maximum cable length (ft)
19200---------------------------------------------------50
9600----------------------------------------------------500
4800----------------------------------------------------1000
2400----------------------------------------------------3000

The above is a guide. The cable length can be extended by using lower capacitance cable than that relied on in the RS232 standard.

Regards,

Bill