Several kinds of entrance guard system troubleshooting methods

2023-11-01 00:00:00

entrance guard system common fault has two kinds: 1. Unable to communication;2. Electric lock lock, how can we solve?

can’t communication has two kinds, one is the 485 entrance guard not communications, 2 it is TCP/IP controller is not communication.

a: communication failure communication
485 entrance guard not solving steps are as follows:
1. Check the 485 communications line whether there is a short circuit or open circuit;
2. Measuring 485 communications at the ends of the line voltage, in 3 v & ndash;Between 5 v is normal;
3. Check to see if the ports set up with computer software.
4. The total control table 】 【 detection controller interface to the controller for operation, operating at the same time observe whether 485 communication converter status indicator light is flashing.
5. Test the controller serial number whether encrypted transformation (special encryption tool can restore).

communication fault 2: TCP/IP controller is not communication
solving steps are as follows:
1. Check the communication controller.LAN select 【 】 small LAN, choose large network 】 【 across a network segment.Across the network segment when first to the controller IP is set to the controller’s LAN IP network, including IP address, subnet mask, gateway, DNS server, etc.Then on the management of computer search.net and can be added to the controller.
2. In the command prompt ping the IP of the controller, the network is connected.
3. If they are across a network segment, check to see if the router port open or IP binding.
4. Use line instrument measuring cables is obstructed.
5. You can take the controller to the computer next to test communication within a local area network (LAN).To ensure that the computer and entrance guard controller itself no problem.