fs_conditioning.py

# -*- coding: utf-8 -*-
"""
Created on Fri Jun  3 19:17:33 2016

@author: xf05id1
"""

from epics import PV
import time

ttl1 = PV('XF:05IDD-ES:1{EVR:1-Out:FP1}Src:Scale-SP')
BT1p = PV('XF:05IDD-VA:1{BT:1-CCG:1}P-I')

def movefs():
#    ttl1.put(4)
#    time.sleep(2)
#    ttl1.put(3)
     shut_fast.high_cmd()
     time.sleep(2)
     shut_fast.low_cmd()

open_wait = 1 #min
close_wait = 5 #min
setp = 5E-6

num_cycle = 24*12*3

for i in range(num_cycle+1):
    print('open fast shutter')
    movefs()
    while(BT1p.get() < setp):
        print('pressure: '+str(BT1p.get()))
        print('wait '+str(open_wait)+' min')
        time.sleep(open_wait*60)
    print('pressure: '+str(BT1p.get()))        
    print('close fast shutter')
    movefs()
    print('wait '+str(close_wait)+' min')
    time.sleep(close_wait*60)