Relay set channel

 1'''
 2Relay - Relay_set_channel.py with synchronous mode.
 3
 4This example demonstrates how to write channel from EthanL.
 5
 6-------------------------------------------------------------------------------------
 7Please change correct serial number or IP and port number BEFORE you run example code.
 8
 9For other examples please check:
10    https://github.com/WPC-Systems-Ltd/WPC_Python_driver_release/tree/main/examples
11See README.md file to get detailed usage of this example.
12
13Copyright (c) 2022-2024 WPC Systems Ltd. All rights reserved.
14'''
15
16## Python
17import time
18
19## WPC
20
21from wpcsys import pywpc
22
23def main():
24    ## Get Python driver version
25    print(f'{pywpc.PKG_FULL_NAME} - Version {pywpc.__version__}')
26
27    ## Create device handle
28    dev = pywpc.EthanL()
29
30    ## Connect to device
31    try:
32        dev.connect("192.168.1.110") ## Depend on your device
33    except Exception as err:
34        pywpc.printGenericError(err)
35        ## Release device handle
36        dev.close()
37        return
38
39    try:
40        ## Parameters setting
41        port = 0 ## Depend on your device
42        DO_port = 0
43        timeout = 3 ## second
44
45        ## Get firmware model & version
46        driver_info = dev.Sys_getDriverInfo(timeout)
47        print("Model name: " + driver_info[0])
48        print("Firmware version: " + driver_info[-1])
49
50        ## Relay open
51        err = dev.Relay_open(port, timeout)
52        print(f"Relay_open in port {port}, status: {err}")
53
54        ## Toggle digital state for 10 times. Each times delay for 0.5 second
55        for i in range(10):
56            if i%2 == 0:
57                value = [0, 0, 0, 0, 0, 0]
58            else:
59                value = [1, 1, 1, 1, 1, 1]
60
61            dev.DO_writePort(DO_port, value, timeout)
62            print(f'Port: {DO_port}, digital state= {value}')
63
64            ## Wait
65            time.sleep(0.5)  ## delay [s]
66
67        ## Relay close
68        err = dev.Relay_close(port, timeout)
69        print(f"Relay_close in port {port}, status: {err}")
70    except Exception as err:
71        pywpc.printGenericError(err)
72
73    ## Disconnect device
74    dev.disconnect()
75
76    ## Release device handle
77    dev.close()
78
79    return
80
81if __name__ == '__main__':
82    main()