| 摘要 |
The invention relates to a device for monitoring the state of a switch. This device comprises a transmission path 20 connected to the terminals 31, 32 of the switch 24, means 25, 26, 27, 50 of noting the positions of the switch, which are connected to the transmission path and supply signals indicative of these positions, characterised in that it furthermore comprises checking means 25, 26, 27, 53 connected to the transmission path 20 in order to check its operation and thus detect any possible short-circuit or any possible cutting of this path. Application to monitoring the state of a switch and in particular the state of a safety actuator. <IMAGE>
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