All data in the monitoring direction is available through the 3X and 4X memory areas. This includes the digital indication data which is also readable in the 1X and 0X areas. All register structures are located in the 4X area.
The Modbus data may contain empty bits or registers within the sequential data areas. These bits and registers are intended for possible future expansion. Reading this data does not result in any Mobdus exception response. The value in these bits or registers is always zero.