US 9,811,072 B2
Apparatus and method for analyzing a control network
Matthew A Hermans, Saukville, WI (US); Joseph Zaccaria, Brookfield, WI (US); and Raymond Spangler, Bakerfield, CA (US)
Assigned to Rockwell Automation Technologies, Inc., Mayfield Heights, OH (US)
Filed by ROCKWELL AUTOMATION TECHNOLOGIES, INC., Mayfield Heights, OH (US)
Filed on Oct. 9, 2014, as Appl. No. 14/510,797.
Prior Publication US 2016/0105337 A1, Apr. 14, 2016
Int. Cl. G05B 19/05 (2006.01); G05B 19/418 (2006.01); H04L 12/24 (2006.01)
CPC G05B 19/05 (2013.01) [G05B 19/4186 (2013.01); H04L 41/085 (2013.01); Y02P 90/185 (2015.11)] 15 Claims
OG exemplary drawing
 
1. A system for analyzing a control network comprising:
a library data structure relating messages to a plurality of device types;
a communication interface for communicating with a first level device in a first level control network; and
an electronic processor executing a program stored in a non-transitory computer-readable storage medium to:
(a) send a first communication to a target location in the first level control network via the communication interface, wherein the first communication includes a message configured to be processed by any of the device types, and wherein the first communication directs a first level device to provide information for identifying its device type;
(b) receive a response via the communication interface from the first level device at the target location, wherein the response provides information identifying its device type; and
(c) send a second communication to the first level device via the communication interface,
wherein, based on the library data structure, the second communication includes a message specific to the identified device type and configured to be processed by a subset of the device types that includes the identified device type, and
wherein the second communication including the message specific to the identified device type directs the first level device to provide a data value identifying a connection by the first level device for communicating with a second level device in a second level control network;
(d) send a third communication to a target location in the second level control network, wherein the third communication is sent via the first level device,
wherein the third communication is configured to be processed by any of the device types, and wherein the third communication directs a second level device in the second level control network to provide information for identifying its device type; and
(e) sending a fourth communication to the second level device, wherein the fourth communication includes a message configured to be processed by a subset of the device types which includes the identified device type for the second level device.