Weidmuller Power Monitor Handbuch Seite 205

Communications
• Response message from Slave in normal status
3.5 idle
address
characters
• 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 device numbers) is returned as contents of error.
<Mistaken message example (Command)>
3.5 idle
address
characters
<Response message from Slave to mistaken command (response message in exception (error) status)>
3.5 idle
address
characters
1435710000/01/05.13
Slave Function
code
(01H) (10H)
1 1
Slave Function
code
(01H) (10H)
⇒
Slave Function
code
(01H) (90H)
Number of
Data item
data item to
write
(0064H)
(0002H)
2 2
Number of
Number of
data item to
data
write
(06H)
(0002H)
⇑
Mistake
Data 1 Data 2
(0000H) (0000H)
Exception Error check
code CRC-16
(03H) (0C01H)
Error check
3.5 idle
CRC-16
characters
(0017H)
← character
2
number
⇒
Error check
3.5 idle
CRC-16
characters
(8DB4)
3.5 idle
characters
83