{"action":"created","issue":{"url":"https://api.github.com/repos/pyhys/minimalmodbus/issues/6","repository_url":"https://api.github.com/repos/pyhys/minimalmodbus","labels_url":"https://api.github.com/repos/pyhys/minimalmodbus/issues/6/labels{/name}","comments_url":"https://api.github.com/repos/pyhys/minimalmodbus/issues/6/comments","events_url":"https://api.github.com/repos/pyhys/minimalmodbus/issues/6/events","html_url":"https://github.com/pyhys/minimalmodbus/issues/6","id":148449697,"number":6,"title":"Not getting response from a system I am trying to use Minimal Modbus to talk to","user":{"login":"nbyrne","id":8560859,"avatar_url":"https://avatars.githubusercontent.com/u/8560859?v=3","gravatar_id":"","url":"https://api.github.com/users/nbyrne","html_url":"https://github.com/nbyrne","followers_url":"https://api.github.com/users/nbyrne/followers","following_url":"https://api.github.com/users/nbyrne/following{/other_user}","gists_url":"https://api.github.com/users/nbyrne/gists{/gist_id}","starred_url":"https://api.github.com/users/nbyrne/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/nbyrne/subscriptions","organizations_url":"https://api.github.com/users/nbyrne/orgs","repos_url":"https://api.github.com/users/nbyrne/repos","events_url":"https://api.github.com/users/nbyrne/events{/privacy}","received_events_url":"https://api.github.com/users/nbyrne/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"milestone":null,"comments":7,"created_at":"2016-04-14T18:49:10Z","updated_at":"2016-04-15T21:03:46Z","closed_at":null,"body":">>> print instrument.read_register(0, 1)\r\n\r\nMinimalModbus debug mode. Writing to instrument (expecting 7 bytes back): '\\x01\\x03\\x00\\x00\\x00\\x01\\x84\\n' (01 03 00 00 00 01 84 0A)\r\nMinimalModbus debug mode. No sleep required before write. Time since previous read: 1310283.0 ms, minimum silent period: 8.02 ms.\r\nMinimalModbus debug mode. Response from instrument: '' () (0 bytes), roundtrip time: 51.0 ms. Timeout setting: 50.0 ms.\r\n\r\nTraceback (most recent call last):\r\n  File \"<stdin>\", line 1, in <module>\r\n  File \"minimalmodbus.py\", line 258, in read_register\r\n    return self._genericCommand(functioncode, registeraddress, numberOfDecimals=numberOfDecimals, signed=signed)\r\n  File \"minimalmodbus.py\", line 697, in _genericCommand\r\n    payloadFromSlave = self._performCommand(functioncode, payloadToSlave)\r\n  File \"minimalmodbus.py\", line 795, in _performCommand\r\n    response = self._communicate(request, number_of_bytes_to_read)\r\n  File \"minimalmodbus.py\", line 930, in _communicate\r\n    raise IOError('No communication with the instrument (no answer)')\r\nIOError: No communication with the instrument (no answer)"},"comment":{"url":"https://api.github.com/repos/pyhys/minimalmodbus/issues/comments/210645625","html_url":"https://github.com/pyhys/minimalmodbus/issues/6#issuecomment-210645625","issue_url":"https://api.github.com/repos/pyhys/minimalmodbus/issues/6","id":210645625,"user":{"login":"nbyrne","id":8560859,"avatar_url":"https://avatars.githubusercontent.com/u/8560859?v=3","gravatar_id":"","url":"https://api.github.com/users/nbyrne","html_url":"https://github.com/nbyrne","followers_url":"https://api.github.com/users/nbyrne/followers","following_url":"https://api.github.com/users/nbyrne/following{/other_user}","gists_url":"https://api.github.com/users/nbyrne/gists{/gist_id}","starred_url":"https://api.github.com/users/nbyrne/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/nbyrne/subscriptions","organizations_url":"https://api.github.com/users/nbyrne/orgs","repos_url":"https://api.github.com/users/nbyrne/repos","events_url":"https://api.github.com/users/nbyrne/events{/privacy}","received_events_url":"https://api.github.com/users/nbyrne/received_events","type":"User","site_admin":false},"created_at":"2016-04-15T21:03:46Z","updated_at":"2016-04-15T21:03:46Z","body":"![sending_read_register_61_to_csz_chamber](https://cloud.githubusercontent.com/assets/8560859/14574850/3aa3fdfa-031b-11e6-8c61-4a3c0f66c476.jpg)\r\n"}}