Q: Some users often fail to verify the fingerprint access control attendance system. How to solve this problem?
A: Some of the following situations may result in difficulties for some employees to use or not to use fingerprints for access control:
1 fingerprints are smoothed on some fingers;
2 There are too many folds on the fingers, which often change;
3 finger peeling is serious;
A user whose fingerprint is not recognized can delete the fingerprint and re-register it, or register another finger. When registering fingerprints, such users need to choose to use better quality fingerprints (less wrinkles, no skin, clear fingerprints), try to make the finger touch the fingerprint collection head area larger, and do a comparison test after registration is completed; Register a few more backup fingers. In addition, our access control machine provides a 1:1 comparison method and password function for this purpose, and these employees can be set to use the 1:1 mode and password for access control management.
Q: When the access control machine cannot communicate, what are the reasons?
A: The possible reasons are as follows: 1 The communication port is not set correctly. The communication port selected for connection is not the actual COM port used. 2 The communication port baud rate of the computer is different from the baud rate setting of the attendance machine. 3 The access control is not connected to the power supply or is not connected to the computer; 4 the access control is connected but not turned on. 5 The connected terminal number is incorrect. 6 data lines or converters cannot communicate. 7 The COM port of the computer is broken.
Q: After the power is turned on, the LCD display is incomplete, sometimes only half is displayed, sometimes it is a screen. What is the problem? How to solve it?
A: The possible reason is that the motherboard is bad; 2 the internal characteristics of the LCD. At this time, you need to contact the supplier and return to repair.
Q: How do I clear the administrator of the access control?
Answer: You can use the door access control machine to communicate with the computer. After the communication is successful, enter the access control management tab page and click the clear administrator button to clear the administrator of the access control machine. After disconnecting, you can enter the menu mode of the access control machine. It is.
Q: What is the reason for the "voice" sound when the access control is connected?
Answer: 1 If the above phenomenon occurs when using RS-232 communication, the baud rate of the computer is inconsistent with the baud rate setting of the attendance machine.
2 If RS-485 communication is used, it may be that the two wires of the converter communication line are reversed, or the two wires are stuck together.
Q: After the access control machine is turned on, it repeatedly displays "Please press (leave) the finger". What is the problem? How to solve it?
A: The reason for this problem may be:
1 After using for a long time, the surface of the collecting head becomes unclean or scratched, which causes the collecting head to mistakenly believe that the surface has a finger and cannot pass, so this problem occurs. In this case, you can use a self-adhesive tape to stick
Stick the dirt on the surface of the collection head.
2 The connection of the fingerprint collection head is loose or loose.
3 motherboard chip is broken.
If there are two reasons for items 2 and 3, you need to contact the supplier to apply for warranty.
Q: When operating in the access control management, there is no problem in downloading fingerprint and password data. However, when reading the access control record, it indicates failure or midway error. How can I solve this problem?
A: This situation may be related to the data cable, or the converter, or the COM port of the computer. In this case, you can reduce the communication baud rate between the access control and the computer, such as 19200 or 9600, and then read.
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