RS232 pinout for Fanuc 16i

[ScratchMonkey]

I picked up a standard 9-to-25 modem cable (Belkin brand) at the local
computer store but the machinist reports that his Fanuc 16i is reporting no
"DR" signal. Is there something non-standard about the pinout of the 16i's
port? I haven't found anything in its manual about the pinout. What manual
should I be looking in for that?

[D Murphy]

Post by ScratchMonkey
I picked up a standard 9-to-25 modem cable (Belkin brand) at the local
computer store but the machinist reports that his Fanuc 16i is
reporting no "DR" signal. Is there something non-standard about the
pinout of the 16i's port? I haven't found anything in its manual about
the pinout. What manual should I be looking in for that?

The wiring diagram for the RS 232 cable is in the maintenance manual. In
the book I have it's on page 116 and again on pg. 333.

[MachineTools]

setting parameter for fanuc cnc
<FANUC>
0000:00000010 (ISO)
0001:00000000 (SERIES 16 FORMAT)
0020:00000000 (RS232 PORT 1)
0100:00100000 (LF/CR)
0101:10000001 (STOP BIT)
0102:0 (RS232C DC1-4)
0103:12 (19200 BPS)

setting parameter for pc
<IBM-PC>
[BPS] 19200
[DATA BIT] 7
[PARITY] EVEN
[STOP BIT] 2
[Xon/Xoff] ON

cable layout
RS232C ( 9 to 25)

25PIN 9PIN
1 FG 1------+
2 SD ----------- 2 :
3 RD ----------- 3 :
+-4 RS 4------+
+-5 CS :
+---6 DR :
: 7 SG ----------- 5 :
+---8 CD 6------+
+--20 ER 7-+
8-+

2(25) to 2(9),3(25) to 3(9),7(25) to 5(9), 4(25) and 5(25),
6(25) and 8(25) and 20(25), 1(9) and 4(9) and 6(9), 7(9) and 8(9)

at first, try to download a program from Cnc to PC.

[ScratchMonkey]

Post by MachineTools
cable layout
RS232C ( 9 to 25)

Thanks!

Turned out we needed a null-modem cable (as you've diagrammed), not the
regular cable we'd purchased. Both the PC and control are wired as DTE's so
a crossover is necessary. DTE's are supposed to use male connectors, and
the control has a misleading female connector.

[plh]

Post by ScratchMonkey

Post by MachineTools
cable layout
RS232C ( 9 to 25)

Thanks!
Turned out we needed a null-modem cable (as you've diagrammed), not the
regular cable we'd purchased. Both the PC and control are wired as DTE's so
a crossover is necessary. DTE's are supposed to use male connectors, and
the control has a misleading female connector.

If you wanna make it real simple get a null modem adapter from L-COM or some
similar supplier, and just plug it on the end of your straight cable. They also
have all kindsa adapters.
http://www.l-com.com/shopping/search/resultsmain.jsp?sSearch=null+modem&go.x=21&go.y=9
-plh

[ScratchMonkey]

Post by plh
If you wanna make it real simple get a null modem adapter from L-COM
or some similar supplier, and just plug it on the end of your straight
cable. They also have all kindsa adapters.

If the cables were going to be used for more than one thing, that's
definitely the way I'd go. However, these will be dedicated to each NC
machine, so using a single null-modem cable saves one connection which
means more reliability and one less thing to lose.

If I wanted to get fancy, I'd get a MOXA adapter, hardwire it internal to
the controller, and route the antenna out the top of the machine, providing
a wireless Ethernet telnet connection that could be accessed from any
programming station. (And of course I'd have WPA running to protect the
connection.)

[Cliff]

On Tue, 27 Sep 2005 18:31:08 -0500, ScratchMonkey

Post by ScratchMonkey
(And of course I'd have WPA running to protect the
connection.)

"WPA"?

[ScratchMonkey]

Post by Cliff
On Tue, 27 Sep 2005 18:31:08 -0500, ScratchMonkey

Post by ScratchMonkey
(And of course I'd have WPA running to protect the
connection.)

"WPA"?

Just got back to the newsgroup. WPA is an encryption scheme for wireless
networking. Keeps the guy parked down the street from snooping your traffic
with his laptop.

[plh]

I have found no reliability problems with the connectors. It was well worth the
6-7 bucks a pop not to have to fool with solder. In fact I had some of those
in-house altered jobs, and as they fell apart, I replaced them with the (totally
reliable) adapters (from L-COM, BTW). They have shielded cables that you can
loop around the main machine power source, if you want to, and have no
interference. The molded ends are impervious to oil and coolant (which splashes
on from time to time). These cables are dedicated also, therefore, since no one
ever disconnects them, nothing gets lost.
-Cheers,
-plh

Post by ScratchMonkey

Post by plh
If you wanna make it real simple get a null modem adapter from L-COM
or some similar supplier, and just plug it on the end of your straight
cable. They also have all kindsa adapters.

If the cables were going to be used for more than one thing, that's
definitely the way I'd go. However, these will be dedicated to each NC
machine, so using a single null-modem cable saves one connection which
means more reliability and one less thing to lose.
If I wanted to get fancy, I'd get a MOXA adapter, hardwire it internal to
the controller, and route the antenna out the top of the machine, providing
a wireless Ethernet telnet connection that could be accessed from any
programming station. (And of course I'd have WPA running to protect the
connection.)

[Serial # 19781010]

Standard wont work
You need the following-
On the Fanuc 6-8-20 shorted
4-5 shorted if your using Xon/Xoff protocol or crossed if your using
RTS/CTS
2-2 straight for 25-9 pin
3-3 straight for 25-9 pin

regs






On Mon, 12 Sep 2005 10:35:24 -0500, ScratchMonkey

Post by ScratchMonkey
I picked up a standard 9-to-25 modem cable (Belkin brand) at the local
computer store but the machinist reports that his Fanuc 16i is reporting no
"DR" signal. Is there something non-standard about the pinout of the 16i's
port? I haven't found anything in its manual about the pinout. What manual
should I be looking in for that?