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1 #!/bin/bash |
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2 |
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3 rm -f ./SRVOK ./PLCOK |
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4 |
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5 # Run server |
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6 $BEREMIZPYTHONPATH - > >( |
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7 echo "Start SRV loop" |
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8 while read line; do |
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9 # Wait for server to print modified value |
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10 echo "SRV>> $line" |
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11 if [[ "$line" == 3.4 ]]; then |
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12 echo "PLC could write value" |
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13 touch ./SRVOK |
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14 fi |
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15 done |
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16 echo "End SRV loop" |
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17 ) << EOF & |
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18 |
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19 import sys |
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20 import time |
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21 |
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22 from opcua import ua, Server |
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23 |
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24 server = Server() |
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25 server.set_endpoint("opc.tcp://127.0.0.1:4840/freeopcua/server/") |
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26 |
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27 uri = "http://beremiz.github.io" |
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28 idx = server.register_namespace(uri) |
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29 |
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30 objects = server.get_objects_node() |
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31 |
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32 testobj = objects.add_object(idx, "TestObject") |
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33 testvarout = testobj.add_variable(idx, "TestOut", 1.2) |
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34 testvar = testobj.add_variable(idx, "TestIn", 5.6) |
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35 testvar.set_writable() |
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36 |
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37 server.start() |
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38 |
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39 try: |
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40 while True: |
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41 time.sleep(1) |
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42 print testvar.get_value() |
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43 sys.stdout.flush() |
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44 finally: |
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45 server.stop() |
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46 EOF |
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47 SERVER_PID=$! |
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48 |
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49 # Start PLC with opcua test |
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50 setsid $BEREMIZPYTHONPATH $BEREMIZPATH/Beremiz_cli.py -k \ |
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51 --project-home $BEREMIZPATH/tests/projects/opcua_client build transfer run > >( |
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52 echo "Start PLC loop" |
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53 while read line; do |
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54 # Wait for PLC runtime to output expected value on stdout |
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55 echo "PLC>> $line" |
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56 if [[ "$line" == 1.2 ]]; then |
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57 echo "PLC could read value" |
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58 touch ./PLCOK |
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59 fi |
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60 done |
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61 echo "End PLC loop" |
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62 ) & |
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63 PLC_PID=$! |
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64 |
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65 echo all subprocess started, start polling results |
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66 res=110 # default to ETIMEDOUT |
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67 c=30 |
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68 while ((c--)); do |
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69 if [[ -a ./SRVOK && -a ./PLCOK ]]; then |
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70 echo got results. |
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71 res=0 # OK success |
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72 break |
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73 else |
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74 echo waiting.... $c |
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75 sleep 1 |
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76 fi |
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77 done |
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78 |
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79 # Kill PLC and subprocess |
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80 echo will kill PLC:$PLC_PID and SERVER:$SERVER_PID |
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81 pkill -s $PLC_PID |
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82 kill $SERVER_PID |
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83 |
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84 exit $res |