Campbell SDM-SIO2R, Руководство по эксплуатации продукта

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CRBasic Example 4: RS-485 mode example
'Convert string to float
ConvertedValue = ReturnedData
'add an offset to the returned floating point value
ConvertedValue = Converte 100
SerialClose (SensorPort) 'Close the serial port to the sensor
'this places the SDM-SIO2R into its lowest power mode
Next Scan
EndProg
B.3 Example using switched relay power
CRBasic Example 5: Switched relay mode example
'CR1000X Program showing how to use SDM-SIO2R. This program will transmit/receive
serial data and
'This program will also control the switched relay power using SDM-Generic
SequentialMode 'Sequential Mode allows for the program to have SDM-Generic
command within Conditional Statements
Public dest As Long ' variable holding incoming bytes from SDM device
Const SDM_addr0 = 0 ' sdm address of device communicating with. valid addresses
0-14
Const SDM_addr1 = 1 ' sdm address of device communicating with. valid addresses
0-14
Const cmd_byte = 7 ' setup byte sent to SDM device
Public hexVar0 As Long ' variable holding values to be sent to SDM device
Public hexVar1 As Long ' variable holding values to be sent to SDM device
Const num_vals_out = 1 ' number of values to be sent to SDM device. number of
bytes out - none sent
Const source As String = "" ' variable holding values to be sent to SDM device
Const num_vals_in = 0 ' number of values expected to be received back from SDM
device.
Const bytes_per_value = 1 ' number of bytes for each value sent to or received
from SDM device. one bytes returned
Const big_endian = 1 ' order of bytes sent or received, 0 = little endian, 1 =
big endian
Const delay_byte = -0 ' delay in microseconds between sending bytes (negative
means delay for incoming bytes from SDM device)
Public Sensor_1_In As String * 50
Public Sensor_2_In As String * 50
SDM-SIO2R Serial Input/Output Module with Switched Sensor Power 48