Memory banks

Memory banks are freely accessible memory areas in which device-specific information and properties can be stored. The contents of the memory banks can be read with FB_DALI10xReadMemoryLocation (see FB_DALI102ReadMemoryLocation and FB_DALI103ReadMemoryLocation) and, if enabled, written with FB_DALI10xWriteMemoryLocationNoReply (see FB_DALI102WriteMemoryLocationNoReply and FB_DALI103WriteMemoryLocationNoReply).

Part of the memory banks can be provided with write protection.

A DALI device can support a maximum of 256 memory banks, each with up to 255 bytes, with memory banks 200 to 255 being reserved. Memory bank 0 and memory bank 1 are predefined by IEC 62386.

Structure of memory bank 0:

Memory bank 0 is read only and contains general, vendor-specific information about the DALI control gear or DALI control device. Every certified DALI device must implement memory bank 0. Up to offset 16#1A the fields are defined by IEC 62386 as follows.

Offset	Description	Default values
16#00	Offset of the last memory area inside the memory bank that can be accessed.	Vendor-specific
16#01	Reserved, not implemented
16#02	Number of the last memory bank that can be accessed.	Vendor-specific
16#03	GTIN byte 0 (MSB)	Vendor-specific
16#04	GTIN byte 1	Vendor-specific
16#05	GTIN byte 2	Vendor-specific
16#06	GTIN byte 3	Vendor-specific
16#07	GTIN byte 4	Vendor-specific
16#08	GTIN byte 5 (LSB)	Vendor-specific
16#09	Firmware Version (major)	Vendor-specific
16#0A	Firmware Version (minor)	Vendor-specific
16#0B	Identification number byte 0 (MSB)	Vendor-specific
16#0C	Identification number byte 1	Vendor-specific
16#0D	Identification number byte 2	Vendor-specific
16#0E	Identification number byte 3	Vendor-specific
16#0F	Identification number byte 4	Vendor-specific
16#10	Identification number byte 5	Vendor-specific
16#11	Identification number byte 6	Vendor-specific
16#12	Identification number byte 7 (LSB)	Vendor-specific
16#13	Hardware version (major)	Vendor-specific
16#14	Hardware version (minor)	Vendor-specific
16#15	101 Version number of the current DALI standard	Vendor-specific
16#16	102 Version numbers of all integrated DALI control gears	Vendor-specific
16#17	103 Version numbers of all integrated DALI control devices	Vendor-specific
16#18	Number of logical control units in the device	Vendor-specific
16#19	Number of logical control gears in the device	Vendor-specific
16#1A	Index number of this logical DALI control gear or DALI control device	Vendor-specific
16#1B…16#7F	Reserved, not implemented
16#80…16#FE	Additional device information	Vendor-specific
16#FF	Reserved, not implemented

Structure of memory bank 1:

Memory bank 1 can be used by the device vendor to store further information in the DALI device. Up to offset 16#10 the fields are defined by IEC 62386 as follows.

Offset	Description	Default values	Memory
16#00	Offset of the last memory area inside the memory bank that can be accessed.	Vendor-specific (16#10…16#FE)
16#01	Indicator byte	Vendor-specific
16#02	Lock byte for memory bank 1. Writeable bytes become changeable through the value 16#55. No other values make writing possible.	16#FF
16#03	OEM GTIN byte 0 (MSB)	16#FF	Lockable by byte 16#02
16#04	OEM GTIN byte 1	16#FF	Lockable by byte 16#02
16#05	OEM GTIN byte 2	16#FF	Lockable by byte 16#02
16#06	OEM GTIN byte 3	16#FF	Lockable by byte 16#02
16#07	OEM GTIN byte 4	16#FF	Lockable by byte 16#02
16#08	OEM GTIN byte 5 (LSB)	16#FF	Lockable by byte 16#02
16#09	OEM Identification number byte 0 (MSB)	16#FF	Lockable by byte 16#02
16#0A	OEM Identification number byte 1	16#FF	Lockable by byte 16#02
16#0B	OEM Identification number byte 2	16#FF	Lockable by byte 16#02
16#0C	OEM Identification number byte 3	16#FF	Lockable by byte 16#02
16#0D	OEM Identification number byte 4	16#FF	Lockable by byte 16#02
16#0E	OEM Identification number byte 5	16#FF	Lockable by byte 16#02
16#0F	OEM Identification number byte 6	16#FF	Lockable by byte 16#02
16#10	OEM Identification number byte 7 (LSB)	16#FF	Lockable by byte 16#02
16#11…16#FE	Additional device information	Vendor-specific
16#FF	Reserved, not implemented

Structure of memory banks 2 to 199:

The device vendor can use memory banks 2 to 199 to supply further parameters. The structure of the memory banks is always as shown below. The vendor of the DALI device must be consulted regarding the contents and the possibility to write individual bytes.

Offset	Description	Default values	Memory
16#00	Offset of the last memory area inside the memory bank that can be accessed.	Vendor-specific (16#03…16#FE)
16#01	Indicator byte	Vendor-specific
16#02	Lock byte for the memory bank. Writeable bytes become changeable through the value 16#55. No other values make writing possible.	16#FF
16#03…16#FE	Additional device information	Vendor-specific	Vendor-specific; lockable by byte 16#02 if enabled by the vendor
16#FF	Reserved, not implemented