Specifications

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CONCISE GUIDE FANUC 172
20.0 COMMUNICATION ON SERIAL PORT
FANUC is equipped with a serial port complying with the RS232C standards. It can be used to
communicate both with “intelligent” peripherals (e.g. computers) and with “dummy” devices (such as
printers, tape recorders etc.).
The parameters of the serial port and the connection diagram is described below.
20.1 SETTING OF DATA TRANSFER PARAMETERS
To transfer data by means of the RS232C serial port configure transmission parameters as follows:
(to modify a parameter machine see chapter 5)
PARAMETER 020 = 0 (I/0 CHANNEL) selects the type of peripheral
Once changed the parameter it’s necessary go to a specific table to set the data transfer parameters.
access to this table proceed as below:
1 select MDI MODE on operator’s panel
2 press PARAMETER PAGE
3 press soft key +
4 press soft key +
5 press soft key +
6 press soft key TUT IO
The table is the following.
CHANNEL I/O TV CHECK = OFF
DEVICE NUM. = 0 PUNCH CODE= ISO
BAUDRATE = 9600 INPUT CODE = ASCII
BIT STOP = 2 FEED OUTPUT = LF
NULL INPUT (EIA) NO EOB OUTPUT = LF
TV CHECK (NOTES) = OFF
20.2 CABLE SCHEME RS232C
After having established the data transfer parameters, it’s necessary to built a cable:
STANDARD CONNECTION
Connector 9 pin side PC connector 25 pin side CN
Connect pin 1-4-6 and the pin 7 with 8 connect pin 6-8-20 and pin 4 with 5
RXD 2 ………………………………………………….2 TxD
TxD 3 …………………………………………………..3 RxD
GND 5…………………………………………………..7 GND