Long out record PV Monitoring error in client using CaChannel-1.5 python interface

[Ritesh Sugandhi <ritesh.sugandhi@gmail.com>]

Dear Sir,

We are using a client application develop using CaChannel-1.5 epics python interface library. The CA server is exposing a longout record which we are interested in monitoring. When ever the record attends the âive values. The client showsÂÂ2**32-val instead of value.Âwhile the same code works well with ao record type .

The Code is as below:

###################################################

def eventMon(epics_args, user_args):

ÂÂglobal monPV, now

ÂÂprint monPV, now, epics_args['pv_value']

def main():

ÂÂglobal stop, now

ÂÂtry:

ÂÂ ÂmonChan = CaChannel()

ÂÂ ÂmonChan.search(monPV)

ÂÂ ÂmonChan.pend_io()

ÂÂ Âprint now

ÂÂexcept CaChannelException, status:

ÂÂ Âprint ca.message(status)

ÂÂtry:

ÂÂ ÂmonChan.add_masked_array_event(ca.dbf_type_to_DBR_STS(monChan.field_type()), \

ÂÂ Â Â Â ÂNone, ca.DBE_VALUE | ca.DBE_ALARM, eventMon)

ÂÂexcept CaChannelException, status:

ÂÂ Âprint ca.message(status)

ÂÂwhile not stop:

ÂÂ Ânow = strftime('\t%Y-%m-%d %X\t')

ÂÂ Âca.pend_event(0.5)

###################################################

Best Regards,

Ritesh SugandhiÂ