Any idea about DNC parameter for this controller?

I'm assuming you want to send / receive programs rather than drip-feed. It's my understanding that drip-feeding requires DNC-B option. Here's the parameters for sending / receving. I've attached the pages from the operator's manual.

Go to Parameters, Item down to Option Paramters, then page down to the External I/O Page:

1. Tape code : 1 ISO code
2. Recognize Tape code parity : 1 Auto
3. Tape TV check : 0 do not
4. Program end code : 1 ISO (%)
5. Tape read verify : 0 do not
6. Tape special code alarm : 0 no alarm
7. Ignore tape special code : 1 ignore
8.File name output : 0 output
9. Output of record end code : 0 CR, LF
10. Punch out of empty chr. Code : 0 null
11. Read device number : 0 CN0:
12. Punch device number : 0 CN0:
13. Tape feed : 1 # of nulls

Then page down to RS232C (CN0:) parameters

1. RS232C stop bit check : 1 1 stop bit
2. RS232C parity check : 0 do not
3. RS232C even parity : 1 even
4. RS232C 8 bit JIS : 1 use
5. Control DC code on type 2 : 0 do not
6. RS232C file name read : 1 execute
7. CNC slave station : 0 master
8. RS232C baud rate (bps) : 9600
9. RS232C busy timer(s) : 30 (seconds)

Set your DNC system to 9600, Even Parity, 7 Data Bits, 1 Stop Bit, and XON/XOFF (Software) handshaking.

Good luck.