2. SIO Through Mode
If the SIO through mode is to be used, refer to the operation manual on serial communication (Modbus version).
In this mode, the GateWayR unit exchanges data with the host master in units of bytes (at the specified baud rate). It also
exchanges data with the controller unit at the baud rate of 230.4 kbps. In other words, communication data is passed to
the host and subordinate devices through the GateWayR unit at different baud rates (according to the settings). The
communication mode of the host (Modbus/RTU or ASCII) is automatically detected by the controller unit.
Caution
1. The baud rates of 9600 bps and 19200 bps cannot be set in this mode.
2. If this mode is to be used, set the user setting switch SW2 on the GateWayR unit to the ON (right) position.
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