Allen-Bradley 1779-KFMR User Manual page 126

Chapter 8
Command Format:
Success Reply Format:
Unless otherwise stated, values shown are in hexadecimal, and each block
shown represents one byte.
Physical Read
This command reads a block of data from the controller's data table or
program memory. Only use this command together with other commands
in an upload or download procedure ("PLC-2 Upload/Download
Procedures").
Use the address (P ADDR) field to specify the physical byte address of
the starting point for the read. Use the SIZE field to specify the number
of bytes to be read. To specify a number of words, SIZE should be an
even value because words in programmable controllers are two bytes
long.
Command Format:
Success Reply Format:
Unless otherwise stated, values shown are in hexadecimal, and each block
shown represents one byte.