| 摘要 |
PCT No. PCT/DE96/00146 Sec. 371 Date Sep. 22, 1997 Sec. 102(e) Date Sep. 22, 1997 PCT Filed Feb. 1, 1996 PCT Pub. No. WO96/29609 PCT Pub. Date Sep. 26, 1996In the case of a multichannel monitoring device for monitoring system operating states, a test input (45a, 45b) is provided per channel (2, 3) on an evaluation and monitoring circuit for the purpose of testing the supply leads (7a, 7b) to the signalling units (1a, 1b) for freedom from damage. Either no filters or filters (47a, 47b) with a short settling time are provided in the supply lead to this test input (45a, 45b). As a result, testing requires only a very short time, so that the evaluation of the signalling units (1a, 1b) is interrupted only for a very short time. The time is so short that no dangerous system states can occur.
|
