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Figure 22 GW-7552-B / GW-7552-M output data to modbus slave devices
Figure 23 GW-7552-B / GW-7552-M receive data from modbus slave devices
When the GW-7552-B / GW-7552-M acts as a Modbus slave device, it can
receive query message from Modbus master device and then saving to internal
DO、AO memory space. It can also send response message to Modbus master
、
device through internal DI、AI data, as shown in figure 24
25.
GW-7552-B / GW-7552-M PROFIBUS/MODBUS GATEWAY User Manual (Version 1.60, May/2017) PAGE: 24
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