Ring-master – Ring Communications DNA100 User Manual

Page 21

Advertising
background image

April 2012 Digital Network Adapter DNA100

NET

- Network number. Networks 01-30 are for standard nodes, 00 is not used, and 31 is reserved for a

D

IGITAL

E

XCHANGE

M

ASTER

bridge.

NODES - Node number. The master of that network is receiving messages from the nodes displayed. Node
numbers are from 0-7 listed from right to left.

FREE

- The number of free queue elements for transmission. In each node, there is a free pool of message

locations that can contain queued up messages generated for the node’s internal housekeeping. When queued
messages are handled, the queue element is placed back into the pool. This number is the remaining queue
elements that can be used by the master node. This number is usually HEX 28 but will decrease depending on
data traffic.

RETR

- The number of retransmissions logged by the master of this network. To reset the counter the

master must be reset. Some retransmissions may exist on a good network due to data disturbance when
installing or removing a node, or if transmissions are sent to a node that is not present on the system.

RXERR - Number of receive errors logged by the master of this network. To reset the counter the master
must be reset.

17

Ring-Master

Advertising