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

Страница: 87 / 149

70
Master Function API Functions
Section 4-4
ACTUAL_SLAVE_INFO Structure
This structure stores information obtained when reading information about the
Slaves connected to the network. This structure is used in the SCAN_Get
ActualSlaveDevice() function.
Reading Slave Information: SCAN_GetActualSlaveDevice()
Application Range I/O communications execution status
Function Reads information about the specified Slave.
Call Format BOOL SCAN_GetActualSlaveDevice(DWORD Handle , WORD MacId ,
ACTUAL_SLAVE_INFO* SlaveInfo )
Arguments
Return Value TRUE is returned if the Slave information was read successfully. FALSE is
returned if an error occurred. Detailed error information can be read with the
GetLastError() function.
Description This function gets information from Slaves connected to the network.
Information can even be obtained for Slaves with verification errors.
Type Name Contents
WORD VendorID Vendor ID
Scan list disabled mode:0xFFFF (65535)
No Slaves connected:0xFF00 (65280)
WORD ProductType Product type
Scan list disabled mode:0xFFFF (65535)
No Slaves connected:0xFF00 (65280)
WORD ProductCode Product code
Scan list disabled mode:0xFFFF (65535)
No Slaves connected:0xFF00 (65280)
WORD ScanType
WORD Output1 Size of output data 1 in bytes
No Slaves connected: 0xFF00 (65280)
WORD Input1 Size of input data 1 in bytes
No Slaves connected: 0xFF00 (65280)
WORD Output2 Size of output data 2 in bytes
Two I/O connections not set: 0
×
000 (0)
No slaves connected: 0
×
FF00 (65280)
WORD Input2 Size of input data 2 in bytes
Two I/O connections not set: 0
×
000 (0)
No slaves connected: 0
×
FF00 (65280)
Scan type
0x8000 (32768) for automatic selection
Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
Reserved CY
BS: Bit Strobe
CY: Cyclic
COS BS Poll Reserved
Type Name Contents
DWORD Handle Device handle obtained by SCAN_Open()
WORD MacId Node address of the Slave whose information is
being read
ACTUAL_SLAVE_
INFO* SlaveInfo Buffer address for receiving slave information
Slave information is stored to the buffer address
specified here when the function is completed.