Nor-Cal SDC15 Controller - Manual (Page 168)

■ Fixed length random data read command (RU command)
This command reads random (non-continuous) data in two-byte units.
● Send message
The data address (four hexadecimal digits) of the data to be read is sent in the
specified order.
● Response message
If the message is sent successfully, the termination code is taken to be normal (two
decimal digits) and returned appended with the read data count (four hexadecimal
digits X read data count) specified by the command. If message transmission ends
in error, the termination code is taken to be in error (two decimal digits) and
returned without the read data appended.
● Maximum read data count per message
Up to 28 words for both RAM and EEPROM areas
7-10
Chapter 7. CPL COMMUNICATIONS FUNCTIONS
0 0 R U
(1) Fixed length random data write command
(2) Sub-command: fixed to "00".
(3) Data address 1
(4) Data address 2
(5) Data address (n)
(5) (1) (2) (3) (4)
• Normal termination
• Abnormal termination
X
(1)
X The abnormal termination code is entered at XX.
For details of codes,
refer to
7-6, List of Termination Codes (on page 7-14).
(1) Termination code
(2) Data 1
(3) Data 2 to (n-1)
(4) Data (n)
0
(1)
0
(2) (3) (4)