Chengdu Ebyte Electronic Technology Co., Ltd. NE2-D11/NE2-D12 User Manual
Copyright © 2012-2024, Chengdu Ebyte Electronic Technology Co., Ltd.
As an optimization of multi-host request performance, storage gateway can only work in TCP
server mode, which improves the response speed of network side.
Features:
（1） The gateway has 10K cache for storing instructions and returning results (reading 10
hold registers as an example, it can store 300 instructions and returning results);
（2） When the RTU response timeout or the last reply time exceeds the instruction storage
time, the equipment automatically empties the cache to ensure the real-time and
authenticity of the data;
（3） The polling interval can be customized, 0-65535ms;;
（4） The gateway will poll the RTU device according to the storage time of the instruction
used for configuration. If the MODBUS host does not query the instruction again during the
storage time, the gateway will automatically delete the storage instruction and release the
cache;
（
5
）
The first instruction and control instruction (05, 06, 0F, 10 function code) will directly
access RTU equipment;
（6） Only support 01, 02, 03, 04 Modbus function code query result storage;
Upper computer configuration of storage gateway;
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