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Figure 21 Data exchange between the Modbus devices and the GW-7552-B /
GW-7552-M
When the GW-7552-B / GW-7552-M acts as a Modbus master device, it can get
query message through module parameter and DO、AO data and send query
message to Modbus slave device. It can also receive response message form
Modbus slave device and then saving to internal DI、AI memory space, as
、
shown in figure 22
23.
GW-7552-B / GW-7552-M PROFIBUS/MODBUS GATEWAY User Manual (Version 1.60, May/2017) PAGE: 23
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