3. COMMAND CONFIGURATION

 

 

 

 

 

 

Data length (N)

 

Data 1

 

Data 2

 

 

Data N

 

 

 

Command

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Command

 

is in the range of 80H to FFH.

 

 

 

Data length

 

are in the

 

 

 

 

range of 00H to 7FH.

 

 

 

 

 

 

 

 

 

 

 

 

 

Data

 

 

 

 

 

 

 

 

 

 

 

Data length (N) refers to the length of the subsequent data of Data 1 to Data N.

If received data contains more byte data than the Data length, these exceeding data are abandoned.

If a next command received contains byte data shorter than the Data length, the previous command is abandoned.

4. TRANSMISSION DATA AFTER COMMAND RECEPTION

When normal data is received, the same data as the reception data is to be transmitted. Example: 91H, 03H, 00H, 00H, 00H (Reception data)

91H, 03H, 00H, 00H, 00H (Transmission data)

When channel data is received and the data is outside of the range, the data is to be inverted and transmitted.

Example: 91H, 03H, 00H, 08H, 00H (Reception data)

91H, 03H, 00H, 77H, 00H (Transmission data)

When abnormal data is received, the data is to be inverted and transmitted. Example: 91H, 03H, 00H, 00H, 6AH (Reception data)

91H, 03H, 00H, 00H, 15H (Transmission data)

When data other than channel data is received and the data is outside of the range, no data is transmitted.

Example: 91H, 03H, 05H, 00H, 6AH (Reception data) No response

5. CONTROL COMMAND AND SETTING VALUE

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Vax RS 232C manual Command Configuration, Transmission Data After Command Reception, Control Command and Setting Value