DNC and CNC setting for Fanuc 0M

These settings are for the DNC Precision software only. They may not work with other software.

Set the following parameters on the machine

Press the [Parameters] button for parameters settings
Press the [PAGE DOWN] button and select the 'Settings 2' submode
Set the 'MODE SELECT' switch to 'MDI'
Set the 'NO PWE' parameter to 1 and press the 'Input' button. After changing parameters below, change this value to 0 again
Select the 'Settings 2' submode
Set I/O = 1
Server mode. This machines has a very limited set of characters. Therefore you should use the following format of the command program
N0010 P0001Where P0001 request for the 0001 program
With help of 'PAGE DOWN' and 'PAGE UP' buttons change bits in the following parameters. Please, don't change bits that didn't print in the table below
#002 (stop bit and data format)
bit 00 (1 stop bit)
bit 20 (RS232)
bit 31 (ASCII)
#0552 (baud rate). Set this parameter = 9
BaudParameter value
#0038 (IO device)
bit 10
bit 21
bit 40
bit 51
bit 60
bit 71
#0051 (Parity)
bit 11 (Yes)
#0055 (Additional parameters)
bit 01 (ASCII)
bit 10 (CR)
bit 20 (Protocol A)
bit 30 (RS232)

Set the following parameters on the PC

Serial port tab

Machine nameFanuc 0M
Serial portCOM2 (or any free COM port)
Data bits7
Stop bits2

Data flow control tab

Use DTRFalse
Use RTSTrue
Require DSRFalse
Require CTSTrue
Set RTSFalse
Set DTRFalse
Software flowcontrolNone
Xon char#11
Xoff char#13

Data exchange format tab

Format modeUniform
Format parametersProgram start: %
Program end: %
Line start:
Line end: #0A
Skip lines:
Ignore characters: No characters for remove
Remove blank lines: No
Program name prefix: O
Program starting characters in the file: No
Program ending characters in the file: No

Null modem cable, without handshake
PC, 9pin, DB9M | CNC, 25pin, DB25

Null modem cable, with full handshake
PC, 9pin, DB25M | CNC, 25pin, DB25

Null modem cable, without handshake
PC, 25pin, DB25M | CNC, 25pin, DB25

Null modem cable, with full handshake
PC, 25pin, DB25M | CNC, 25pin, DB25


If you have successfully connected DNC Precision with any other controller not in this list, we would appreciate your sending us the details to add to the list.

Note: We are not responsible and do not provide guarantee for any of these settings, that have been sent us by our customers.