Note:   
1. For ZG3 hardware version below v3.1.1, when using RS485 to communicate with other device, 
it cannot change the communication parameters, please only use the default parameters. 
The default parameters: station no.1, baud rate 19200bps, 8 data bits, 1 stop bit, even parity. 
2. For ZG3 hardware version up v3.1.1, the RS485 communication parameters can be changed. 
 
 
1-3-5.USB download port 
 
ZG3 integrated controller USB-B download port is only for HMI to download, it can be very 
fast, reaching 480Mbps.   
 
Under special environment, the HMI cannot download or it cannot reveal after download. 
Please force download. 
Instructions  : 
(1)Please make ZG3 power off, turn on switch 2. 
(2)Please make ZG3 power on, linking with USB to download the program. 
(3)when it finished, turn off switch 2, re-power on the ZG3. 
 
 
4-bits DIP switch is shown as below: 
System menu: time calibration, touch 
calibration 
Internal inspection mode (not recommended)