Instruction manual

4. COMMUNICATION PROTOCOL
IMCB03-E5
25
(3) Data send
Host computer to send the data with a format indicated below continuing the selecting sequence.
* For [STX], [ETX] and [BCC], see item "
4.1 Polling"
(P. 19).
#
##
#
Identifier [Number of digits : 2] (See P. 28.)
This identifies the data (set value) which is sent by the host computer.
$
$$
$
Data [Number of digits : 6]
Data is the information being sent to the controller. It is expressed in decimal ASCII code including
a minus sign (-) and a decimal point (period).
!"
!"!"
!"
About numerical data
The data that receipt of letter is possible
• Data with numbers below the decimal point omitted or zero suppressed data can be received.
<Example> When data send with -001.5, -01.5, -1.5, -1.50, -1.500 at the time of -1.5, controller
can receive a data.
• When the host computer send data with decimal point to item of without decimal point, controller
receives a message with the value which cut off below the decimal point.
<Example> When setting range is 0 to 200, controller receives as a following.
Send data
0.5 100.5
Receive data
0 100
• Controller receives value in accordance with decided place after the decimal point. The value
below the decided place after the decimal point is cut off.
<Example> When setting range is -10.00 to +10.00, controller receives as a following.
Send data
-.5 -.058 .05 -0
Receive data
-0.50 -0.05 0.05 0.00
The data that receipt of letter is impossible
Controller sends NAK when received a following data.
+ Plus sign and the data that gained plus sing
- Only minus sign (there is no figure)
. Only decimal point (period)
Identifier Data BCCETXSTX
#$