#250 fix scraper simulator (#259)

Fix scraper simulator example

Author: rahulraghu94

examples/contrib/message_parser.py

@@ -26,15 +26,13 @@
 from pymodbus.transaction import ModbusAsciiFramer
 from pymodbus.transaction import ModbusRtuFramer
 from pymodbus.compat import  IS_PYTHON3
-
-
 # -------------------------------------------------------------------------- #
-# Logging
 # -------------------------------------------------------------------------- #
 import logging
 modbus_log = logging.getLogger("pymodbus")
 
 
+
 # -------------------------------------------------------------------------- #
 # build a quick wrapper around the framers
 # -------------------------------------------------------------------------- #
@@ -150,6 +148,10 @@ def get_options():
         help="If the incoming message is in hexadecimal format",
         action="store_true", dest="transaction", default=False)
 
+    parser.add_option("-t", "--transaction",
+        help="If the incoming message is in hexadecimal format",
+        action="store_true", dest="transaction", default=False)
+
     (opt, arg) = parser.parse_args()
 
     if not opt.message and len(arg) > 0:

examples/contrib/modbus_simulator.py

@@ -76,8 +76,9 @@ def __init__(self, config):
         :param config: The pickled datastore
         """
         try:
-            self.file = open(config, "r")
-        except Exception:
+            self.file = open(config, "rb")
+        except Exception as e:
+            _logger.critical(str(e))
             raise ConfigurationException("File not found %s" % config)
 
     def parse(self):
@@ -134,5 +135,5 @@ def main():
 if __name__ == "__main__":
     if root_test():
         main()
-    else: 
+    else:
         print("This script must be run as root!")