Programmable field measuring instrument
First Claim
1. A programmable field measuring instrument having a control unit, which serves for executing a control program and which has, as an interface, a connector terminal, which is connected, in a manner that allows it to be released, to a software protection device essentially comprising a connector mating element with an integrated electronic component, which allows authorization examination by the control unit.
0 Assignments
0 Petitions
Accused Products
Abstract
A programmable field measuring instrument includes a control unit, and a connector terminal, and a software protection device. The control unit executes a control program. The connector terminal is connected to the software protection device such that the software protection device may be released from the connector terminal. The software protection device includes a connector mating element with an integrated electronic component which allow authorization examination by the control unit.
-
Citations
19 Claims
- 1. A programmable field measuring instrument having a control unit, which serves for executing a control program and which has, as an interface, a connector terminal, which is connected, in a manner that allows it to be released, to a software protection device essentially comprising a connector mating element with an integrated electronic component, which allows authorization examination by the control unit.
-
17. A method for the protection of software in a field measuring instrument having a control unit and a memory with different control program variants, having the following method steps:
-
A) start of an initialization routine of the control unit, B) interrogation of the identifier of a software protection device connected, in a manner that allows it to be released, to the field measuring instrument, C) selection of a control program variant by the control unit on the basis of the identifier. - View Dependent Claims (18, 19)
-
Specification