4. RKC STANDARD COMMUNICATION
IM9000F02-E2
28
(3) Data send
Host computer to send the data with a format indicated below continuing the selecting
sequence.
d
c
BCC
ETX
Data
Identifier
STX
* For [STX], [ETX] and [BCC], see item "4
.1.1 Polling"
(P. 22).
c
Identifier [Number of digits : 2] (See P. 31.)
This identifies the data (set value) which is sent by the host computer.
d
Data [Number of digits : 7]
This is the data indicated by the identifier of the REX-F9000. It is expressed in decimal
ASCII code including a minus sign ( - ) and a decimal point. Even zero suppressed data or
data whose figures below the decimal point are omitted can be received (However, the
maximum number of digits is 7).
Example : When data is -1.5
-001.5
→
Receivable
-1.50
→
Receivable
-01.5
→
Receivable
-1.500
→
Receivable
-1.5
→
Receivable
In addition, the REX-F9000 determines the receive data during selecting as follows.
Example : When setting data is between -10.00 to +10.00
When data is receivable:
When data is not receivable:
-.5
→
-0.5
-
→
Not receivable (NAK answer)
-.058
→
-0.05
.
→
Not receivable (NAK answer)
.03
→
0.03
-.
→
Not receivable (NAK answer)
+0
→
Not receivable (NAK answer)
(4) Acknowledgment [ACK]
If the REX-F9000 correctly received data sent from the host computer, send [ACK]. Then, if there
is data to be sent next on the host computer side, send the data.
After the data has been sent, send [EOT] to terminate the data link.
