1'''
2AI - AI_N_samples_once.py with synchronous mode.
3
4This example demonstrates the process of obtaining AI data in N-sample mode.
5Additionally, it gets AI data with points in once from EthanA2.
6
7To begin with, it demonstrates the steps to open the AI and configure the AI parameters.
8Next, it outlines the procedure for reading the streaming AI data.
9Finally, it concludes by explaining how to close the AI.
10
11-------------------------------------------------------------------------------------
12Please change correct serial number or IP and port number BEFORE you run example code.
13
14For other examples please check:
15 https://github.com/WPC-Systems-Ltd/WPC_Python_driver_release/tree/main/examples
16See README.md file to get detailed usage of this example.
17
18Copyright (c) 2022-2024 WPC Systems Ltd. All rights reserved.
19'''
20
21## Python
22import time
23
24## WPC
25
26from wpcsys import pywpc
27
28
29def main():
30 ## Get Python driver version
31 print(f'{pywpc.PKG_FULL_NAME} - Version {pywpc.__version__}')
32
33 ## Create device handle
34 dev = pywpc.EthanA2()
35
36 ## Connect to device
37 try:
38 dev.connect("192.168.1.110") ## Depend on your device
39 except Exception as err:
40 pywpc.printGenericError(err)
41 ## Release device handle
42 dev.close()
43 return
44
45 try:
46 ## Parameters setting
47 port = 0 ## Depend on your device
48 mode = 1 ## 0 : On demand, 1 : N-samples, 2 : Continuous
49 channel = 8
50 sampling_rate = 1000
51 samples = 200
52 read_points = 200
53 read_delay = 3 ## second
54 timeout = 3 ## second
55
56 ## Get firmware model & version
57 driver_info = dev.Sys_getDriverInfo(timeout)
58 print("Model name: " + driver_info[0])
59 print("Firmware version: " + driver_info[-1])
60
61 ## Open AI
62 err = dev.AI_open(port, timeout)
63 print(f"AI_open in port {port}, status: {err}")
64
65
66 ## Set AI acquisition mode to N-samples mode (1)
67 err = dev.AI_setMode(port, mode, timeout)
68 print(f"AI_setMode {mode} in port {port}, status: {err}")
69
70 ## Set AI sampling rate
71 err = dev.AI_setSamplingRate(port, sampling_rate, timeout)
72 print(f"AI_setSamplingRate {sampling_rate} in port {port}, status: {err}")
73
74 ## Set AI # of samples
75 err = dev.AI_setNumSamples(port, samples, timeout)
76 print(f"AI_setNumSamples {samples} in port {port}, status: {err}")
77
78 ## Open AI streaming
79 err = dev.AI_openStreaming(port, timeout)
80 print(f"AI_openStreaming in port {port}, status: {err}")
81
82 ## Start AI streaming
83 err = dev.AI_startStreaming(port, timeout)
84 print(f"AI_startStreaming in port {port}, status: {err}")
85
86 ## Read AI
87 ai_2Dlist = dev.AI_readStreaming(port, read_points, read_delay)
88 print(f"Number of samples: {len(ai_2Dlist)}" )
89
90 ok = True
91 for i, ai_list in enumerate(ai_2Dlist):
92 ## Check for any missing data
93 if len(ai_list) != channel:
94 print(i, ai_list)
95 ok = False
96 if ok:
97 print('Sample length OK')
98 else:
99 print('Error: at least 1 sample has wrong length')
100
101 ## Close AI streaming
102 err = dev.AI_closeStreaming(port, timeout)
103 print(f"AI_closeStreaming in port {port}, status: {err}")
104
105 ## Close AI
106 err = dev.AI_close(port, timeout)
107 print(f"AI_close in port {port}, status: {err}")
108 except Exception as err:
109 pywpc.printGenericError(err)
110
111 ## Disconnect device
112 dev.disconnect()
113
114 ## Release device handle
115 dev.close()
116
117 return
118
119if __name__ == '__main__':
120 main()