Advantech WISE-4220 Series, Руководство пользователя

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33 WISE-4220 Series User Manual
Chapter 4
S
ystem
Configuration
4.2.5.12 Access Control for Security
To avoid unauthorized access, you can manage the list of devices that can access
the WISE-4220 module by using the “Access Control” section. Please enable one of
the rows and enter the IP address or MAC address of the devices that are allowed to
access the WISE-4220 module.
4.2.5.13 Data Logger
The WISE-4220 series supports data log functions. I/O status can be logged in the
module and queried from the module.
 Time & Date / SNTP
Before you start the log function, please make sure that the RTC time inside the
WISE module is correct. Standard WISE modules, excluding WISE-4012E, come
with an RTC battery. Once the RTC time has been configured, you don't need to syn-
chronize the time with SNTP server. The time will be kept in the RTC with a battery.
For the WISE-4012E without an RTC battery, you need to synchronize the time with
SNTP server.
 Data Configuration
– I/O Data
You can use the “Log Conditions” section in “Data Configuration” to choose the
method that will be used to log data. If you check “By Period” box, it will enable peri-
odic logging, and the log period can be assigned in the following field. Note that the
unit of this field is 0.1 second, meaning that the status of I/O will be logged every min-
ute if you enter “600” here. If you check the box “By Communication WDT”, once the
condition of the WDT is met, the status of the I/O will be logged.
For the analog input channel, data can be logged by the AI Deviation Rate (Dividing
difference between present sample value and previous sample value by the total
range value). Here you can enter the percentage of the deviation rate to be the crite-
ria for triggering the logger.
All the data can be kept even if the module is powered off; however, you can clear all
data in the logger when powering up WISE module by checking the “Clear Log when
Power Up” box. When maximum memory capacity is achieved, the logger will stop
logging by default. You can check the “Circular Log when Memory Full” box to over-
write the memory.
Note! For WISE-4220 wireless modules, users can only configure access con-
trol by the IP address, not the MAC address.