Parker Hannifin
Field Description
Read/
Write
Description
Start Network
R/W
When set, this flag will attempt to
communicate with the CANopen
network. This flag is automatically
cleared by the controller when the
attempt to start the network has
completed. See the section on
“Starting and Configuring the
Network” for more details.
Reset Network
R/W
When set this flag will reset all of the
Extended I/O nodes. This may be
needed if there is a baud rate, node
ID, wiring change, unrecoverable error
or a loss in communications.
CANopen Controller
Installed
R
This flag is set if the controller has the
CANopen hardware and cleared if it
does not.
Network Operational
R
This flag is set when the CANopen
network is in the “Operational” state
and communicating. It is cleared if
there is no communication or some
other error. Check the below flags for
more information on the error, the
CANopen LED or the
DIAG
command.
Network Start Failed
R
This flag is set when a request to start
the network was issued and there was
a failure. Check the below flags for
more information, the CANopen LED
and the
DIAG
command.
Node Failure
R
This flag is set when one, more nodes
are lost, or not responding while the
network is operational. Check the
below flags for more information, the
CANopen LED and the
DIAG
command.
SW Rx Overflow
R
A flag indicating that the software
receive buffer has overflowed.
HW Rx Overflow
R
A flag indicating that the hardware
receive buffer has overflowed.
132 Programmer’s Guide
