ADLINK PCI-7841/cPCI-7841 - Manual (Page 27)

Function Reference 19
DEVICENET_PACKET structure define
The DEVICENET_PACKET structure defines the packet format of
DeviceNet packet. It is widely used by the DeviceNet layer func-
tions.
typedef struct _tagDEVICENET_PACKET
{
BYTE Group;
BYTE MAC_ID;
BYTE HostMAC_ID;
BYTE MESSAGE_ID;
BYTE len;
BYTE data[8];
DWORD time;
BYTE reserved;
}DEVICENET_PACKET;
Members
Group: Group of DeviceNet packet.
MAC_ID: Address of destination.
HostMAC_ID:Address of source.
MESSAGE_ID:Message ID of DeviceNet packet.
len: Length of data field.
data: Data (8 bytes maximum).
See Also
SendDeviceNetPacket(), and RcvDeviceNetPacket()