Rockwell Automation 2711 ControlNet Communications User Guide - Manual (Page 8)

ControlNet Communications 8
Publication 2711-6.10
The following ControlNet related fields may be placed on an
application screen using internal tags. These read only fields are
maintained by the network keeper and do not appear unless added to
a screen. Refer to Displaying ControlNet Internal Tag Data (next
section).
Network Update Time (NUT)
Displays the network update time in milliseconds.
UMAX Node
Displays the ControlNet network’s Unscheduled Maximum node
address (UMAX) setting. The UMAX node is the highest
ControlNet address that can communicate during the unscheduled
portion of the network update interval. The PanelView node address
must be set to a value less than or equal to the UMAX setting to
enter on to the network.
SMAX Node
Displays the ControlNet network’s Scheduled Maximum Node
address (SMAX) setting. The SMAX node is the highest ControlNet
node address that can communicate during the scheduled portion of
the network update interval. The PanelView does not currently
support scheduled messaging.
The Network Update Time, UMAX Node, SMAX Node, and other
data may be displayed on an application screen by assigning a
display object to one of the following internal data tags.
Data Internal Tag Data Type
Network Update Time (NUT). @Read_DCNUTtime unsigned integer
Unscheduled Maximum (UMAX)
node address.
@Read_DCUMAX unsigned integer
Scheduled Maximum (SMAX) node
address.
@Read_DCSMAX unsigned integer
Current node address. @Read_curDCAddress unsigned integer
CIP/ASA serial number of the
PanelView.
@Read_DCASANumber string *
Communication status number. @Read_DCCommStatus unsigned integer
ControlNet firmware revision
number.
@Read_DCFirmwareRev string *
Terminal address to use after a
reset.
@Read_DCNewAddress unsigned integer
Firmware build date. @Read_DCProtocol string *
LED status number. Indicates
status of A & B cables.
@Read_DCRedundancy unsigned integer
Scan delay in milliseconds (time
between reads).
@Read_DCScanDelay unsigned integer
* You must use an ASCII display for tags with a string data type.
Viewing Other ControlNet
Parameters
Displaying ControlNet
Internal Tag Data