B&B Electronics GW-7552 - Manual - Manual (Page 23)

GW-7552 PROFIBUS/MODBUS GATEWAY User Manual (Version 1.40, Apr/2012) PAGE: 23
When the GW-7552 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.
Figure 22 GW-7552 output data to modbus slave devices
Figure 23 GW-7552 receive data from modbus slave devices