GW-7553-B / GW-7553-M PROFIBUS/Modbus TCP Gateway User Manual
(Version 1.35, May/2017)
PAGE: 22
Figure 18 GW-7553-B / GW-7553-M output data to Modbus Slave devices
Figure 19 GW-7553-B / GW-7553-M receive data from Modbus Slave devices
When the GW-7553-B / GW-7553-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 20
、
Figure 21
.
