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

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Explicit Message API Functions
Section 4-6
Return Value TRUE is returned if the specified input data was written successfully. FALSE is
returned if an error occurred. Detailed error information can be read with the
GetLastError() function.
Description The Board’s Slave function input area will not reflect in the most recent Master
inputs unless SCAN_IoRefresh() is executed after this function.
Specify NULL as the input data 2 storage buffer address if only one I/O con-
nection is used with the Slave function.
Specify the input size (IN size) for the Master using the Slave function as the
data size for the IO_DATA_CTL structure. The input data to the Master is
stored in the data storage buffer of the IO_DATA_CTL structure.
Sending COS Input Data: SCAN_SendSlaveCosToMaster()
Application Range I/O communications executing status
Function Sends input data to a Master communicating through a COS connection.
Call Format BOOL SCAN_SendSlaveCosToMaster(DWORD Handle )
Arguments
Return Value TRUE is returned if the transmission of input data to the Master proceeded
normally. FALSE is returned if an error occurred. Detailed error information
can be read with the GetLastError() function.
Description The SCAN_SetSlaveInData() function must be used to set the input data
before the input data is sent to the Master through a COS connection.
COS connections do not guarantee immediate communications. Transmission
may be delayed when several nodes are using COS communications.
4-6 Explicit Message API Functions
4-6-1 Message Monitoring Timer Service API Functions
Registering the Message Monitoring Timer: SCAN_SetMessageTimerValue()
Application Range Open status
Function Registers the message monitoring timer value of the explicit client connection
with the specified node address.
Call Format BOOL SCAN_SetMessageTimerValue(DWORD Handle , WORD MacId ,
WORD Epr )
Arguments
Return Value TRUE is returned when the message monitoring timer value was successfully
registered. FALSE is returned if an error occurred. Detailed error information
can be read with the GetLastError() function.
Type Name Contents
DWORD Handle Device handle obtained by SCAN_Open()
Type Name Contents
DWORD Handle Device handle obtained by SCAN_Open()
WORD MacId Desired node address
Setting range: 0x00 to 0x3F (0 to 63)
WORD Epr Message monitoring timer value to be registered
(ms)
Setting range: 0x1F4 to 0x7530 (500 to 30,000)