54 Rockwell Automation Publication 2080-UM004C-EN-E - March 2015
Appendix 5 DeviceNet Plug-in – 2080-DNET20
RA_DNET_EXPLICIT
This UDFB is used for sending explicit message to slave node.
RA_DNET_GENERIC: Input and Output Parameters
Variable Name Type Data Type Description
FBEN INPUT BOOL Function block enable input.
TRUE to enable function.
SlotID INPUT UINT Plug-in slot number (1…5 for plug-in slots).
NodeID INPUT USINT Slave node address.
OutputData INPUT USINT[1…64] Slave output data.
FBENO OUTPUT BOOL Function block enable output.
TRUE to enable function.
InputData[1…64] OUTPUT USINT[1…64] Input data from slave.
For DNET explicit message, the maximum payload supported is 256
bytes.
RA_DNET_EXPLICIT: Input and Output Parameters
Variable Name Type Data Type Description
FBEN INPUT BOOL Function block enable input.
TRUE to enable function.
SlotID INPUT UINT Plug-in slot number (1…5 for plug-in slots).
NodeID INPUT USINT Node address of slave node.
CnxnNumber INPUT USINT Connection number values 1, 2, 3, 4, 5.
MsgLength INPUT USINT Specifies the size of the CIP message in the
transaction block.
CIPService INPUT UINT CIP service code.
CIPClass INPUT UINT CIP Class code (valid values 0…65535).
CIPInstance INPUT UINT CIP instance (valid values 0…65535).
CIPAttribute INPUT UINT CIP attribute (valid values 0…65535).
RequestData INPUT USINT[1…54] Request data from slave.
FBENO OUTPUT BOOL Function block enable output.
Q OUTPUT BOOL TRUE when message is sent out successfully.
Error OUTPUT BOOL TRUE when message transmits error.
ResponseData OUTPUT USINT
[1...50]
CIP Response error
Response Data[1] : Extended Error ID
Response Data[2] : Error ID
See Explicit Message Request Format
on
page 55.
See Explicit Message Status Codes on page 55.
Status OUTPUT USINT See Explicit Message Status Codes on page 55.
RA_DNET_EXPLICIT
FBEN
SlotID
NodeID
CnxnNumber
FBENO
InputData
MsgLength
CIPService
CIPClass
CIPInstance
CIPAttribute
Q
ResponseData
Status
RequestData
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