DV4001/DV6001/VC6001
RS-232C Control Specification
Page: 7 / 14
Document Version [1.0]
Company Restricted
3-3-5. Examples of the handshaking flowchart
3-3-5-1. Example of successful handshaking
S L A V E
H O S T
C o m m a n d
a c c e p ta b le
R e q u e s t
a c c e p ta b le
C o m m a n d
A C K
S ta tu s
r e q u e s t
S ta tu s
a n s w e r
R e la te d
S ta tu s a n s w e r
o r
A u to s ta tu s
fe e d b a c k
C h a n g e d
s o m e s ta tu s !
The product can reply ACK instead of related status, if the product can not send the related status immediately.
3-3-5-2. Examples of handshaking error
S L A V E
H O S T
C o m m a n d
in c o r r e c t
R e q u e s t
in c o r r e c t
C o m m a n d
N A K
S t a t u s
r e q u e s t
N A K
