Omron DeviceNet 3G8F7-DRM21-E, Руководство по эксплуатации

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Maintenance API Functions
Section 4-7
Arguments
Return Value TRUE is returned if the send event registration was completed successfully.
FALSE is returned if an error occurred. Detailed error information can be read
with the GetLastError() function.
Description The message ID, service code, service data size, and buffer address where
the service data must be saved in the SERVER_RES structure. The data cor-
responding to the service to be sent as the response (service data) must be
stored in the specified service data storage buffer.
Make sure that the value saved as MessageID in the SERVER_REQ structure
when SCAN_ReceiveServerExplicit() is completed is saved as the message
ID for the SERVER_RES structure.
4-7 Maintenance API Functions
4-7-1 Status Service API Functions
Reading Network Status: SCAN_GetNetworkStatus()
Application Range Open status
Function Gets the network (CAN) status.
Call Format BOOL SCAN_GetNetworkStatus(DWORD Handle , WORD * Status )
Arguments
Return Value TRUE is returned if the specified Board’s network status was read success-
fully. FALSE is returned if an error occurred. Detailed error information can be
read with the GetLastError() function.
Description The following table shows the location and meaning of the network status
flags. The flags are contained within 16 bits.
Type Name Contents
DWORD Handle Device handle obtained by SCAN_Open()
SERVER_RES* Msg Buffer address where the response message is
stored
Type Name Contents
DWORD Handle Device handle obtained by SCAN_Open()
WORD * Status Buffer address for receiving the status.
Bit Code Meaning
0 B00 CAN active
1 B01 Network frame detected
2 to 7 --- Not used
8 B08 Network power supply error
9 B09 Transmission timeout error
10 B10 Reception overwrite occurred
11 B11 Reception overload warning
12 B12 Transmission overload warning
13 --- Not used
14 B14 Bus off error
15 --- Not used