1.11 Protocol Switching
To switch to the DCON protocol:
1.
Set the Modbus register 00257 to zero.
2.
After a power-on reset, the communication protocol will be
changed to DCON.
To switch to the Modbus RTU protocol:
1.
Sends the $AAPN command and set N to a value of 1.
Note that for the DGW-521, the INIT switch of the module
should be set to the INIT position, see the figure shown
below.
2.
After a power-on reset, the communication protocol will be
changed to the Modbus RTU protocol.
DGW-521 User Manual, Rev. A1.0
20
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