FANUC Robotics America GFK-1535A - Manual (Page 55)

GFK-1535A Chapter 4 Configuring a Genius NIU and I/O Station 4-7
4
Configuring NIU Parameters
NIU configuration establishes the basic operating characteristics of the Network
Interface Unit.
When a programmer is first connected, the NIU communicates using the default
communications parameters: 19,200 baud, odd parity, one start bit, one stop bit, and
eight data bits. If these parameters are re-configured, the new configuration for the
serial port is not actually installed until the programmer is removed. Once these new
settings take effect, they will be used at powerup instead.
Feature Description Default Choices
Data Rate (bps) Data transmission rate (in bits per second). 19200 4800, 9600, 19200
Parity Determines whether parity is added to words Odd Odd, Even, None
Stop Bits Number of stop bits used in transmission. (Most
serial devices use one stop bit; slower devices
use two.) 1 1, 2
Expansion Bus
Speed In an expansion system with one or more
Isolated Expansion Receiver Modules
(IC200ERM001), the default bus speed is
250kHz (“Extended Distance”). If the bus is less
than 250 meters, this parameter can be
changed to “Normal” (1MHz). If no Isolated
Receiver Module is present, the bus speed
defaults to Normal (3Mhz). Extended
Distance Extended, Normal
Configuring I/O References
As I/O modules are added to the configuration, the configuration software keeps a
running total of input/output memory. If the modules added consume more than the
maximum memory available, the configuration software displays the reference
address of the module that caused the error, and an error message.
The I/O Station, including all expansion racks, can include up to 128 bytes of inputs
and 128 bytes of outputs.
You can change the I/O references assigned to a module when configuring that
module.