DO write pins

  1'''
  2DIO - DO_write_pins.py with synchronous mode.
  3
  4This example illustrates the process of writing a high or low signal to a DO pin from STEM.
  5
  6To begin with, it demonstrates the steps required to open the DO pin.
  7Next, voltage output is written to the DO pin.
  8Lastly, it concludes by closing the DO pin.
  9
 10If your product is "STEM", please invoke the function `Sys_setDIOMode`.
 11
 12The DIO ports 0 to 1 are assigned to slot 1, while ports 2 to 3 are assigned to slot 2.
 13---------------------------
 14|  Slot 1    port 1 & 0   |
 15|  Slot 2    port 3 & 2   |
 16|  Slot 3    port 5 & 4   |
 17|  Slot 4    port 7 & 6   |
 18---------------------------
 19
 20-------------------------------------------------------------------------------------
 21Please change correct serial number or IP and port number BEFORE you run example code.
 22
 23For other examples please check:
 24    https://github.com/WPC-Systems-Ltd/WPC_Python_driver_release/tree/main/examples
 25See README.md file to get detailed usage of this example.
 26
 27Copyright (c) 2022-2024 WPC Systems Ltd. All rights reserved.
 28'''
 29
 30## Python
 31import time
 32
 33## WPC
 34
 35from wpcsys import pywpc
 36
 37
 38def main():
 39    ## Get Python driver version
 40    print(f'{pywpc.PKG_FULL_NAME} - Version {pywpc.__version__}')
 41
 42    ## Create device handle
 43    dev = pywpc.STEM()
 44
 45    ## Connect to device
 46    try:
 47        dev.connect("192.168.1.110") ## Depend on your device
 48    except Exception as err:
 49        pywpc.printGenericError(err)
 50        ## Release device handle
 51        dev.close()
 52        return
 53
 54    try:
 55        ## Parameters setting
 56        slot = 1 ## Connect DIO module to slot
 57        DO_port = 0
 58        pin_index = [0, 1, 2, 3]
 59        DO_value = [1, 0, 1, 0]
 60        timeout = 3 ## second
 61
 62        ## Get firmware model & version
 63        driver_info = dev.Sys_getDriverInfo(timeout)
 64        print("Model name: " + driver_info[0])
 65        print("Firmware version: " + driver_info[-1])
 66
 67        ## Get slot mode
 68        slot_mode = dev.Sys_getMode(slot, timeout)
 69        print("Slot mode:", slot_mode)
 70
 71        ## If the slot mode is not set to "DIO", set the slot mode to "DIO"
 72        if slot_mode != "DIO":
 73            err = dev.Sys_setDIOMode(slot, timeout)
 74            print(f"Sys_setDIOMode in slot {slot}, status: {err}")
 75
 76        ## Get slot mode
 77        slot_mode = dev.Sys_getMode(slot, timeout)
 78        print("Slot mode:", slot_mode)
 79
 80        ## Get DIO start up information
 81        info = dev.DIO_loadStartup(DO_port, timeout)
 82        print("Enable:   ", info[0])
 83        print("Direction:", info[1])
 84        print("State:    ", info[2])
 85
 86        ## Write pins to high or low
 87        err = dev.DO_writePins(DO_port, pin_index, DO_value, timeout)
 88        print(f"DO_writePins in port {DO_port}, status: {err}")
 89    except Exception as err:
 90        pywpc.printGenericError(err)
 91
 92    ## Disconnect device
 93    dev.disconnect()
 94
 95    ## Release device handle
 96    dev.close()
 97
 98    return
 99
100if __name__ == '__main__':
101    main()