Image transfer object is used to update new firmware to the meter. Example how to update the image.
1. Logical Name
Logical name of the object.
2. Image block size
How many bytes are send to the meter in one block. Image block size can't exceed the Max receive PDU size. DLMS standard defines that this is property of the meter and it can't be changed.
3. Image transferred blocks status
Bit string that tells status of received image blocks Bit is zero if block is missing. Note! The status of the first block is on the left in the bit-string.
Bit order is: Least Significant Bit ... (Most Significant Bit)
4. image first not transferred block number
Zero based number from image block not transferred.
5. Image transfer enabled
Can user update new image.
6. Image transfer status
Status of the Image transfer process.
7. Image to activate info
List of images ready for activation.
1. Image transfer initiate
Initiate image transfer.
2. Image blocktransfer
Move next block to the device.
3. Image verify
4. Image activate