Examples¶
niswitch_connect_channels.py¶
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 | #!/usr/bin/python
import argparse
import niswitch
import sys
def example(resource_name, channel1, channel2, topology, simulate):
# if we are simulating resource name must be blank
resource_name = '' if simulate else resource_name
with niswitch.Session(resource_name=resource_name, topology=topology, simulate=simulate) as session:
session.connect(channel1=channel1, channel2=channel2)
print('Channel ', channel1, ' and ', channel2, ' are now connected.')
session.disconnect(channel1=channel1, channel2=channel2)
print('Channel ', channel1, ' and ', channel2, ' are now disconnected.')
def _main(argsv):
parser = argparse.ArgumentParser(description='Performs a connection with NI-SWITCH Channels.', formatter_class=argparse.ArgumentDefaultsHelpFormatter)
parser.add_argument('-n', '--resource-name', default='PXI1Slot2', help='Resource name of a National Instruments Switch.')
parser.add_argument('-ch1', '--channel1', default='c0', help='Channel One.')
parser.add_argument('-ch2', '--channel2', default='r0', help='Channel Two.')
parser.add_argument('-t', '--topology', default='Configured Topology', help='Topology.')
parser.add_argument('-s', '--simulate', default=False, action='store_true', help='Simulate device.')
args = parser.parse_args(argsv)
example(args.resource_name, args.channel1, args.channel2, args.topology, args.simulate)
def test_example():
example('', 'c0', 'r0', '2737/2-Wire 4x64 Matrix', True)
def test_main():
cmd_line = ['--topology', '2737/2-Wire 4x64 Matrix', '--simulate']
_main(cmd_line)
def main():
_main(sys.argv[1:])
if __name__ == '__main__':
main()
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niswitch_get_device_info.py¶
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 | #!/usr/bin/python
import argparse
import niswitch
import sys
def example(resource_name, topology, simulate, device, channel, relay):
# if we are simulating resource name must be blank
resource_name = '' if simulate else resource_name
with niswitch.Session(resource_name=resource_name, topology=topology, simulate=simulate) as session:
if device:
print('Device Info:')
row_format = '{:<18}' * (2)
print(row_format.format('Device Name: ', session.io_resource_descriptor))
print(row_format.format('Device Model: ', session.instrument_model))
print(row_format.format('Driver Revision: ', session.specific_driver_revision))
print(row_format.format('Channel count: ', session.channel_count))
print(row_format.format('Relay count: ', session.number_of_relays))
if channel:
print('Channel Info:')
row_format = '{:6}' + ' ' * 12 + '{:<15}{:<22}{:6}'
print(row_format.format('Number', 'Name', 'Is Configuration', 'Is Source'))
for i in range(1, session.channel_count + 1):
channel_name = session.get_channel_name(index=i)
channel = session.channels[channel_name]
print(row_format.format(i, channel_name, str(channel.is_configuration_channel), str(channel.is_source_channel)))
if relay:
print('Relay Info:')
row_format = '{:6}' + ' ' * 12 + '{:<15}{:<22}{:6}'
print(row_format.format('Number', 'Name', 'Position', 'Count'))
for i in range(1, session.number_of_relays + 1):
relay_name = session.get_relay_name(index=i)
print(row_format.format(i, relay_name, session.get_relay_position(relay_name=relay_name), session.get_relay_count(relay_name=relay_name)))
def _main(argsv):
parser = argparse.ArgumentParser(description='Prints information for the specified National Instruments Switch module.', formatter_class=argparse.ArgumentDefaultsHelpFormatter)
parser.add_argument('-n', '--resource-name', default='PXI1Slot2', help='Resource name of a National Instruments Switch.')
parser.add_argument('-d', '--device', default=False, action='store_true', help='Prints information for the device')
parser.add_argument('-c', '--channel', default=False, action='store_true', help='Prints information for all channels on the device')
parser.add_argument('-r', '--relay', default=False, action='store_true', help='Prints information for all relays on the device')
parser.add_argument('-t', '--topology', default='Configured Topology', help='Topology.')
parser.add_argument('-s', '--simulate', default=False, action='store_true', help='Simulate device.')
args = parser.parse_args(argsv)
if not (args.device or args.channel or args.relay):
print('You must specify at least one of -d, -c, or -r!')
parser.print_help()
sys.exit(1)
example(args.resource_name, args.topology, args.simulate, args.device, args.channel, args.relay)
def test_example():
example('', '2737/2-Wire 4x64 Matrix', True, True, True, True)
def test_main():
cmd_line = ['--topology', '2737/2-Wire 4x64 Matrix', '--simulate', '--device', '--channel', '--relay', ]
_main(cmd_line)
def main():
_main(sys.argv[1:])
if __name__ == '__main__':
main()
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niswitch_relay_control.py¶
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 | #!/usr/bin/python
import argparse
import niswitch
import sys
def example(resource_name, topology, simulate, relay, action):
# if we are simulating resource name must be blank
resource_name = '' if simulate else resource_name
with niswitch.Session(resource_name=resource_name, topology=topology, simulate=simulate) as session:
session.relay_control(relay_name=relay, relay_action=niswitch.RelayAction[action])
print('Relay ', relay, ' has had the action ', action, ' performed.')
def _main(argsv):
parser = argparse.ArgumentParser(description='Performs relay control with NI-SWITCH relays.', formatter_class=argparse.ArgumentDefaultsHelpFormatter)
parser.add_argument('-n', '--resource-name', default='PXI1Slot2', help='Resource name of a National Instruments Switch.')
parser.add_argument('-r', '--relay', default='k0', help='Relay Name.')
parser.add_argument('-a', '--action', default='OPEN', choices=niswitch.RelayAction.__members__.keys(), type=str.upper, help='Relay Action.')
parser.add_argument('-t', '--topology', default='Configured Topology', help='Topology.')
parser.add_argument('-s', '--simulate', default=False, action='store_true', help='Simulate device.')
args = parser.parse_args(argsv)
example(args.resource_name, args.topology, args.simulate, args.relay, args.action)
def test_example():
example('', '2737/2-Wire 4x64 Matrix', True, 'kr0c0', 'OPEN')
def test_main():
cmd_line = ['--topology', '2737/2-Wire 4x64 Matrix', '--simulate', '--relay', 'kr0c0']
_main(cmd_line)
def main():
_main(sys.argv[1:])
if __name__ == '__main__':
main()
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