MBPAR Register

The MBBDR register stores the Modbus Parity Bit configuration. The default value is 122, representing Even Parity, which is de default Modbus Parity.

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

• Value 120 represents No Parity.

• Value 121 represents Odd Parity.

• Value 122 (default) represents Even Parity.

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.