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HARSFEN0602
Sets the value of 1 to the MO variable.
CA[2]=1;
Sets the value of the CA[2] variable. CA[N] denotes a vector of parameters that can be accessed by their
index.
The free evaluation
(5+sin(PX))*sqrt(abs(VX))
Returns a numerical value to the terminal.
More detail about text interpreting is given in the chapter "The Interpreter Language".
The amplifier responds to the host communicated commands. It never initiates an unasked-for message to
the host.
The syntax of the amplifier answers is
{<Value>}{<Error code>}<Terminator>
Where
Item Description
Value Parameter value (Optional, if the command asks to report parameter)
Error code A binary number that may be interpreted according to the error code tables –
please refer the EC Command in the Command Reference Manual.
Terminator ‘;’ if the host command has been successfully executed, else ‘;?’
Table 3-2 – RS232 Tx Item Description
3.2.2 The Echo
When using RS232 each character that is received by the amplifier is echoed back to the host. The echo is
immediate, per each received character.
3.2.3 Background Transmission
When the host enters the BH=n command to the amplifier, the amplifier uploads the recorder data to the
host. The uploading process may take few seconds. At the time the amplifier uploads records to its host, it is
still listening to the host for new commands.
Consider the command sequence
BH=1;MO=0<CR>
The amplifier will start to transmit the recorder data immediately. Few milliseconds later, while the recorder
data is still transmitting, the amplifier will execute the MO=0 command. The amplifier will store the
response message to the MO=0 command, in order to transmit it later, immediately after the records upload
terminates.
Note:
If the host does not know the communication parameters, it may transmit a series of terminators and try
several baud rates, until it can receive a matching sequence of echoes.
3.2.4 Errors and exceptions in RS232
If an error is intercepted (Overrun, noise, parity, framing), then the entire message including this
error is discarded, and answered by the “communication error” code response.
Although the communication is defined as 8 bits per character, only the byte values 0-127 are used.
The characters 127-255 are treated as UART errors.
Empty strings with terminators are echoed back, but otherwise ignored.
3.3 CANopen Communication
A detailed description of CANopen communications is out of the scope of this manual.
Please refer the CANopen Manual.