Abstract: A processing method for preventing electromagnetic induction when a main system and a standby system of a safety drive unit co-drive a relay. The method includes the following steps: periodically acquiring and detecting a drive command; detecting a port state of an output port of a safety drive unit when the drive command changes; performing a corresponding processing operation according to the port state of the output port; and repeating the foregoing steps.

Abstract: A vertical panel structure device comprises of several panels, a top, a shelf, and a plurality of fasteners, the panel has horizontal slot that opens at one end, which interlock, fixate and secure the shelf that has only one slot. The device can be easily assembled and disassembled, which improve the aesthetic, completeness and integration of the shelf, and provide a wide range of diversification and versatility.

Abstract: A processing method for preventing electromagnetic induction when a main system and a standby system of a safety drive unit co-drive a relay. The method includes the following steps: periodically acquiring and detecting a drive command; detecting a port state of an output port of a safety drive unit when the drive command changes; performing a corresponding processing operation according to the port state of the output port; and repeating the foregoing steps.

Abstract: A redundant network IP smart failover method and system based on a redundant computer. Each computer in any computer group comprises an IP address switching module, a network status detecting module, and a peer fault detecting module. The IP address switching module is configured to smoothly switch an IP address in the redundant network. The peer fault detecting module is configured to mutually exclusively and stably acquire operation statuses of peer computers and quickly obtain a correct redundant network IP when necessary. The network status detecting module is configured to determine statuses of local and remote networks to facilitate the IP address switching module to smartly switch the IP address. Configuring a network status detecting module and a peer fault detecting module to aid the IP address switching module to allocate IP addresses more smartly can significantly improve reliability of the redundant network and effectively reduce IP conflicts during the redundant network failover process.

Abstract: Disclosed are a redundant network IP smart failover method based on a redundant computer and a corresponding system. Each computer in any computer group comprises an IP address switching module, a network status detecting module, and a peer fault detecting module, wherein the IP address switching module is configured to smoothly switch an IP address in the redundant network; the peer fault detecting module is configured to mutually exclusively and stably acquire operation statuses of peer computers and quickly obtain a correct redundant network IP when necessary; and the network status detecting module is configured to determine status of the local network and status of the remote network to facilitate the IP address switching module to smartly switch the IP address.