B&B Electronics GW-7553 - Manual - Manual (Page 17)

GW-7553 PROFIBUS/Modbus TCP Gateway User Manual (Version 1.00, Dec/2008) PAGE: 17
Figure 12 Data exchange between PROFIBUS Master device and GW-7553
The GW-7553 downloads the parameter and configuration from PROFIBUS
Master device to be the module parameters. The GW-7553 and PROFIBUS
Master device have different data type and data address, the GW-7553 can transfer
different data format to PROFIBUS Master device through module parameters.
When the GW-7553 acts as a Modbus Master device, it will send DI、AI data to
input data area of PROFIBUS Master device and it will save data that receives
from PROFIBUS Master device to internal DO、AO memory space, as shown in
figure 13
、
14
.
Figure 13 The output data of PROFIBUS Master device send to the GW-7553