Panasonic KW8M - Page 70

KW8M Eco-POWER METER
61
<3> Reset integral electric power (0064H, 0065H:2-word) of address 1
(When setting to 0 [0000, 0000H])
・Command
3.5 idle
characters
Slave
address
(01H)
Function
code
(10H)
Data item
(0064H)
Number of
data item to
write
(0002H)
Number of
data
(04H)
⇒
1
1
2
2
1
←
character
number
⇒
Data 1
(0000H)
Data2
(0000H)
Error check
CRC-16
(F474H)
3.5 idle
characters
2
2
2
←character
number
・Response message from slave in normal status
3.5 idle
characters
Slave
address
(01H)
Function
code
(10H)
Data item
(0064H)
Number of
data item to
write
(0002H)
Error check
CRC-16
(0017H)
3.5 idle
characters
1
1
2
2
2
←character
number
・A response message from the slave in exception (error) status
(When number of data has been mistaken.)
Function code MSB is set to 1 for the response message in exception (error) status (90H).
The exception code 03H (Value out of the devise numbers) is returned as contents of error.
<Mistaken message example (Command)>
3.5 idle
characters
Slave
address
(01H)
Function
code
(10H)
Number of
data item to
write
(0002H)
Number of
data
(06H)
⇒
↑ mistake
⇒
Data 1
(0000H)
Data 2
(0000H)
Error check
CRC-16
(8F8E)
3.5 idle
characters
<Response message from slave to mistaken command
(Response message in exception (error) status)>
3.5 idle
characters
Slave
address
(01H)
Function
code
(90H)
Exception code
(03H)
Error check
CRC-16
(0C01H)
3.5 idle
characters