Parker 6513, Техническое руководство

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18
ASCII
RS485/RS232 Communications Interface
EI Bisynch ASCII Sequence Diagrams
Protocol
Event
ESTABLISH
CONNECTION
Sender
SUPERVISOR
Supervisor
Status
MASTER
Status
SLAVE SLAVE
SLAVE
SUPERVISOR
MASTER
MASTER
TERMINATION
SUPERVISOR
MASTER
SLAVE
INITIAL
ENTRY
Message Transfer
E
O
T
(ADD)
E
O
T
S
T
X (CMD)(DATA)
E
T
X
(BCC)
NO
REPLY
A
C
K
N
A
K
(VALID)
(INVALID)
Device
SET PARAMETER
RESPONSE
FURTHER SELECTION
RE-ENTRY
RE-ENTRY
DEVICE
SET PARAMETER
Figure 2 Selection Sequence for Writing Information to the Drive
Protocol
Event
ESTABLISH
CONNECTION
Sender
SUPERVISOR
Supervisor
Status
MASTER
Status
SLAVE SLAVE
SUPERVISOR
MASTER
TERMINATION
SUPERVISOR
MASTER
SLAVE
INITIAL
ENTRY
RE-ENTRY
Message Transfer
E
O
T
(ADD)(CMD)
E
N
Q
E
O
T
NO
REPLY
E
O
T
S
T
X
(CMD)(DATA)
E
T
X
(BCC)
A
C
K
N
A
K
Device
ENQUIRY FURTHER ENQUIRY RESPONSE
(READ NEXT
PARAMETER)
(READ SAME
FROM LIST)
PARAMETER)
FURTHER ENQUIRY
SUPERVISOR
MASTER
SLAVE
DEVICE
MASTER
SLAVE
RE-ENTRY
ENQUIRY
Figure 3 Poll Sequence for Reading Information from the Drive