FIELD COMMUNICATION SYSTEM

• US 20130019040A1
• Filed: 07/13/2012
• Published: 01/17/2013
• Est. Priority Date: 07/15/2011
• Status: Abandoned Application

• Current Assignee: Yokogawa Electric Corporation
• Original Assignee: Yokogawa Electric Corporation
• Inventors: Emori, Toshiyuki, Mizushima, Fuyuki, Sueki, Masanori
• Application Number:
  US13/548,629
• Publication Number:
  US 20130019040A1
• Time in Patent Office: Days
• US Class Current: 710/110
• CPC Class Codes: H04L 12/40182 by using a plurality of communication lines

Abstract

A field communication system includes a field device as a slave device, having a first slave communication port and a second slave communication port, a communication module as a master device, having first master communication port and a second master communication port, configured to execute communication with the field device, a first communication line configured to connect the first slave communication port with the first master communication port, and

• • a second communication line configured to connect the second slave communication port with the second master communication port.

Claims

1. A field communication system comprising:

a field device as a slave device, having a first slave communication port and a second slave communication port;

a communication module as a master device, having first master communication port and a second master communication port, configured to execute communication with the field device;

a first communication line configured to connect the first slave communication port with the first master communication port; and

a second communication line configured to connect the second slave communication port with the second master communication port.

2. The field communication system according to claim 1, wherein:

a first communication module and a second communication module are provided as the communication module so that a redundancy configuration is formed by the first and second communication modules;

both the first master communication port of the first communication module and the first master communication port of the second communication module are connected to the first communication line; and

both the second master communication port of the first communication module and the second master communication port of the second communication module are connected to the second communication line.

3. The field communication system according to claim 2, wherein:

each of the first master communication port and the second master communication port of the first communication module, and each of the first master communication port and the second master-side communication port of the second communication module can be selectively set as a control or standby side.

4. The field communication system according to claim 1, wherein:

PROFIBUS communication is performed between the field device and the communication module.