Advantech EPD Series, Руководство пользователя

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EPD-023 User Manual 8
2.3 System Network Specification

Physical transmission data rate 250 Kbps

Network join performance
a.1 pcs EPD device join network in 6 secs.
b.400 pcs EPD device join network in 30 minutes by 1 host WISE-1840 on
WISE-3610Z

Data transfer Performance from Gateway
– Update 400pcs EPD-023 in 1 hours
– 2 way communication
– Communication with encrypted AES128
2.4 EPD System-Initial Flow in Device side
This section will explain how the end device to join, register and communicate with
the gateway and router. User may know and understand what performance can be
reach in our specification. Indeed, user may change some parameter to fit their user
scenario.
2.4.1 Tag Scan for Router

Initial scan: EPD device scan each available channel. If EPD device still can’t
find the router after 2 mins, it will change the status to “lost connect”.

Reconfirm scan: The EPD device will start scan channel to look for another
router every 2 mins. If EPD device still can’t find the router after 5 times, it will
change Scan channel frequency from 2, 4, 8, 16, 32, 64, 64, 64, 64……mins.
And then the device will move to deep sleep mode after scanning for 5 days.

Stop scan and deep sleep: If EPD device still can’t find the router finally, it will
stop RF Scanning and back to deep sleep until the button of the Tag has been
pressed. Then tag will start the scanning from the beginning.
Note! The performance will be adjusted according the environmental limita-
tion.
Ini
Ɵ
al Scan
1-Recon
Įƌ
m
scan
2-Recon
Įƌ
m
scan
Stop scanning