Allen-Bradley 2080-IQ4OB4 - Ra_Dnet_Node_Status

46 Rockwell Automation Publication 2080-UM004C-EN-E - March 2015
Appendix 5 DeviceNet Plug-in – 2080-DNET20
Upon powerup, the scanner should be in IDLE Mode for the autoscan to start.
Wait until the autoscan process is complete before turning the scanner to RUN
Mode (that is, Run bit is TRUE).
Sample Code
RA_DNET_NODE_STATUS
This UDFB is used to read the node status of slave nodes in a DeviceNet network
where the 2080-DNET20 scanner is connected.
Error OUTPUT STRING Scanner error description.
ActiveNodes OUTPUT USINT Number of slave nodes in the network.
Scanlist0_62 OUTPUT LWORD Details on active node table, bit 0…62.
Bit 0: Represent Node 0.
Bit 62: Represent Node 62.
Sequence of Operation: RA_DNET_MASTER
Sequence Run Autoscan Description
1 False False Reinitializes scan list from the plug-in scanner if
FBEN = TRUE.
2 False True Triggers autoscan to scan the network after clearing
scan list.
3 False False Puts scanner to IDLE mode by disabling autoscan if
active node number = number of nodes in network.
4 True False Puts scanner to RUN mode.
RA_DNET_MASTER: Input and Output Parameters
Variable Name Type Data Type Description
FBEN
SlotID
NodeID
FBENO
RA_DNET_NODE_STATUS
Status
Error