def test():
loggers = ('ophyd.controls.cas',
)
config.setup_loggers(loggers)
session = config.session
server = session.cas
def updated(value=None, **kwargs):
print('Updated to: %s' % value)
python_pv = CasPV(config.server_pvnames[0], 123.0, server=server)
# full_pvname includes the server prefix
pvname = python_pv.full_pvname
signal = EpicsSignal(pvname)
signal.subscribe(updated)
time.sleep(0.1)
for i in range(10):
python_pv.value = i
time.sleep(0.05)
def test():
def callback(sub_type=None, timestamp=None, value=None, **kwargs):
logger.info('[callback] [%s] (type=%s) value=%s' % (timestamp, sub_type, value))
# Test that the monitor dispatcher works (you cannot use channel access in
# callbacks without it)
logger.info('[callback] caget=%s' % rw_signal.get())
loggers = ('ophyd.controls.signal',
'ophyd.session',
)
config.setup_loggers(loggers)
logger = config.logger
motor_record = config.motor_recs[0]
val = record_field(motor_record, 'VAL')
rbv = record_field(motor_record, 'RBV')
rw_signal = EpicsSignal(rbv, write_pv=val)
# put_complete=True)
rw_signal.subscribe(callback, event_type=rw_signal.SUB_VALUE)
rw_signal.subscribe(callback, event_type=rw_signal.SUB_SETPOINT)
rw_signal.value = 2
time.sleep(1.)
rw_signal.value = 1
time.sleep(1.)
# You can also create a Python Signal:
sig = Signal(name='testing', value=10)
logger.info('Python signal: %s' % sig)
# Even one with a separate setpoint/readback value:
sig = Signal(name='testing', value=10, setpoint=2,
separate_readback=True)
logger.info('Python signal: %s' % sig)