×

PLC based wireless communications

  • US 7,656,846 B2
  • Filed: 11/18/2002
  • Issued: 02/02/2010
  • Est. Priority Date: 11/18/2002
  • Status: Active Grant
First Claim
Patent Images

1. A method for manufacturing a programmable logic controller (PLC) system, said method comprising:

  • providing a central processing unit (CPU) configured for a master PLC including a PLC module bus for coupling at least one PLC module to the CPU;

    providing a means for wireless radio frequency communications between the PLC and a plurality of remote slave devices; and

    operationally coupling the means for wireless radio frequency communications to the CPU by mounting the means and the CPU to a CPU card, the CPU card mounted on a backplane of a rack such that the means and the CPU communicate without using the PLC module bus.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×