MBBDR Register

The MBBDR register stores the Modbus Baud Rate configuration. The default value is 113, representing 19200 bps, which is the default Modbus speed.

Allowed configuration values range from 110 to 115; attempting to write any other values will not have any effect.

• Value 110 sets a Modbus speed of 1200bps.

• Value 111 sets a Modbus speed of 2400bps.

• Value 112 sets a Modbus speed of 9600bps.

• Value 113 (default) sets a Modbus speed of 19200bps.

• Value 114 sets a Modbus speed of 57600bps.

• Value 115 sets a Modbus speed of 115200bps.

This register is placed at the end of the Holding Register section to minimize the risk of accidentally overwriting the Modbus configuration registers.

Any modifications to this register will be saved in the internal non-volatile memory, which supports up to 10,000 cycles. A write cycle occurs only if the written data differs from the previous value. The write process takes 25ms. Upon power-up, the IS4310 automatically retrieves the last saved configuration.