Safety device
First Claim
1. A safety I/O terminal for connecting to an input device designed based on a safety standard, to which an on-off signal is input, connecting to a safety controller designed based on the safety standard via a network, and transmitting an input signal from the input device to a communication master unit of the safety controller, comprising:
- one or more input terminals configured to be given the input signal from the input device compliant with the safety standard;
a test terminal configured to be used by a specification setting in at least one of a test out specification, a nonuse specification, a standard output specification, a power supply specification, and a muting lamp specification;
a memory configured to store the specification setting regarding the test terminal; and
a microcomputer configured to output a test signal for determining presence of abnormality when the test terminal is specified as the test out specification and to carry out a process regarding the test terminal based on the specification setting when the test terminal is specified as one of the other specifications, in accordance with the specification setting in the memory.
2 Assignments
0 Petitions
Accused Products
Abstract
A safety device of the invention includes at least one of an input unit having one or more input terminals and an output unit having one or more output terminals, a testing unit having one or more test terminals, a rewritable nonvolatile memory configured to store setting information of a terminal specification which can be set from outside via the tool, and wherein the terminal specification of the one or more test terminals included in the testing unit is determined in accordance with the setting information of the terminal specification.
32 Citations
10 Claims
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1. A safety I/O terminal for connecting to an input device designed based on a safety standard, to which an on-off signal is input, connecting to a safety controller designed based on the safety standard via a network, and transmitting an input signal from the input device to a communication master unit of the safety controller, comprising:
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one or more input terminals configured to be given the input signal from the input device compliant with the safety standard;
a test terminal configured to be used by a specification setting in at least one of a test out specification, a nonuse specification, a standard output specification, a power supply specification, and a muting lamp specification;
a memory configured to store the specification setting regarding the test terminal; and
a microcomputer configured to output a test signal for determining presence of abnormality when the test terminal is specified as the test out specification and to carry out a process regarding the test terminal based on the specification setting when the test terminal is specified as one of the other specifications, in accordance with the specification setting in the memory. - View Dependent Claims (3)
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2. A safety I/O terminal for connecting to an input device designed based on a safety standard, to which an on-off signal is input, connecting to a safety controller designed based on the safety standard via a network, and transmitting the signal input from the input device to a communication master unit of the safety controller, comprising:
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one or more input terminals configured to be given the input signal from the input device compliant with the safety standard;
a test terminal configured to be shared in two or more of a test out specification, a muting lamp specification, a power supply specification, a standard output specification, and a nonuse specification;
a memory configured to store the specification setting regarding the test terminal; and
a microcomputer configured to switch processes regarding the test terminal in accordance with the specification setting in the memory.
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4. A safety device, comprising:
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at least one of an input unit having one or more input terminals and an output unit having one or more output terminals;
a testing unit having one or more test terminals;
a rewritable nonvolatile memory configured to store setting information of a terminal specification which can be set from outside via the tool, and wherein the terminal specification of the one or more test terminals included in the testing unit is determined in accordance with the setting information of the terminal specification. - View Dependent Claims (5, 6, 7, 8, 9, 10)
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Specification