
B-62714EN/04 SPECIFICATIONS 1.I/O LINK-II I/O FUNCTION
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DI data
Input data when viewed from the local station (master station or slave
station)(Caution)
DO data
Output data when viewed from the local station (master station or
slave station)(Caution)
CAUTION
In the OPCN-1 specifications, data input/output is
defined as data input/output viewed from the master
station. Note that the use of the term in this manual
for slave stations is opposite to the definition in the
OPCN-1 specifications.
For communication with devices of other
manufacturers, check the definition of data
input/output.
DI/DO data transfer function
Function for exchanging DI/DO data between the master station and
slave stations of I/O Link-II. This function is implemented by
input/output service of OPCN-1.
Global I/O transfer function
FANUC unique function. When DI/DO data is exchanged between
the master station and multiple slave stations, a slave station receives
DO data sent from the other slave stations to the master station, thus
achieving I/O transfer between the slave stations.
Successive error detach detection counter
Maximum allowable number of successive communication errors.
When this maximum number is exceeded, a detachment is detected.
One scan
Executing input/output service once for all slave stations connected to
the network
Slave type
Initialization service parameter defined by OPCN-1 for determining
the type of communication between the master station and slave
stations