ICP DAS, ZT-2570/ZT-2571 User Manual, Version 1.3
Page 34
Copyright @ 2013 by ICP DAS Co., Ltd. All Rights Reserved.
4.5.3.
Modbus RTU to Modbus TCP communication
Application Mode of ZT-2550/ZT-2570
Transparent Mode and Gateway Mode are available to be used in the side of
ZigBee coordinator. The only difference is that the two modes use different type
transmission packets.
In Transparent Mode, the benefit of broadcasting is easy to use, there is not any
particular limitation to use this application mode. The only drawback is that the
data throughput of ZigBee network will be reduced with the number of ZigBee
routers in the ZigBee network increased, in order to ensure data transmitted to
every ZigBee nodes so that the transfer time will be much longer than using
unicast frame.
In Gateway Mode, the benefit of unicasting is that the loading of ZigBee network
will be reduced. But there are some issues need to be considered, please refer
the
Advanced Configuration - Frame Type
for more details as below.
Application Mode of ZT-2571
Gateway Mode is required to be set-up, it is responsible for the data conversion
between the Modbus RTU and Modbus TCP.
ZT-2550
ZT-2570
ZT-2571
備註
Application Mode
Transparent
Gateway
Not any special limitation
Gateway
Refer
Advanced Configuration - Frame
Type
ZT-2550 / ZT-2570
ZT-2571
ET-7000
(MBTCP)
MBRTU
MBTCP
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