Field Device

• US 20070270177A1
• Filed: 08/24/2005
• Published: 11/22/2007
• Est. Priority Date: 08/24/2004
• Status: Abandoned Application

• Current Assignee: Yokogawa Electric Corporation
• Original Assignee: Yokogawa Electric Corporation
• Inventors: Nagashima, Akira, Minaki, Teruyoshi, Kurosu, Satoru
• Application Number:
  US11/661,332
• Publication Number:
  US 20070270177A1
• Time in Patent Office: Days
• US Class Current: 455/550.100
• CPC Class Codes: G05B 15/02 electric
• CPC Class Codes: G05B 2219/31121 Fielddevice, field controller, interface connected to fieldbus
• CPC Class Codes: G05B 2219/31251 Redundant access, wireless and hardware access to fielddevices

Abstract

A field device to be installed at a process site is provided with a wireless terminal for connecting a removable radio communication unit to the field device.

Claims

1. A field device to be installed at a process site, the field device comprising:

a wireless terminal for connecting a removable radio communication unit to the field device.

2. The field device according to claim 1, comprising:

an operation section; and

an output section,

wherein the wireless terminal includes at least one of a first wireless terminal arranged for the operation section or a second output terminal arranged for the output section.

3. The field device according to claim 1, wherein the radio communication unit includes:

a receiving section for receiving program data; and

a rewritable memory for storing the program data.

4. The field device according to claim 1, wherein the radio communication unit includes:

a path setting section for determining a transmission destination of a radio signal.

5. The field device according to claim 1, wherein the radio communication unit includes:

a path setting section for determining a transmission destination of a radio signal that is received from another field device.