RKC INSTRUMENT CD101 - Polling Procedure Example (When the Host Computer Requests Data)

4. COMMUNICATION PROTOCOL
IMCD06-E2
23

4.1.2 Polling procedure example
(When the host computer requests data)
 Normal transmission

For the presence of error in data
E
O
T
04H
0
30H
1 M 1
E
N
Q
05H 31H 4DH 31H
S
T
X
M 1 0 0 1 0
.
0
E
T
X
B
C
C
02H 4DH 31H 30H 30H 31H 30H 2EH 30H 03H 60H
A
C
K
06H
E
O
T
04H
Host computer send
Polling
address
Identifier
Next send data
Controller send
Send data
Controller send
Host computer send Host computer send
S
T
X
A A 0 0 0 0
0
0
E
T
X
B
C
C
02H 41H 41H 30H 30H 30H 30H 30H 30H 03H 03H
Data
Identifier
E
O
T
04H
0
30H
1 M 1
E
N
Q
05H 31H 4DH 31H
S
T
X
M 1 0 0 1
.
0
E
T
X
B
C
C
02H 4DH 31H 30H 30H 31H
2EH
30H 03H 60H
N
A
K
15H
A
C
K
06H
Host computer send
Polling
address
Identifier
Host computer send Host computer send
S
T
X
M 1 0 0 1 0
.
0
E
T
X
B
C
C
02H 4DH 31H 30H 30H 31H 30H 2EH 30H 03H 60H
Re-send data
Controller send
Send data
Controller send
Error data
Data
Identifier