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Note
A syntax error status is set when detected and reset when read by the host PC. On the contrary, the Memory End status still
reflects the current status even after being read.
Example:
1
0
ESC S
Status of the
syntax error
Syntax error status
in output buffer
For instance, sending “ER02” resets the syntax error status even though the error still exists.
The ESC S command may not be returned correctly if it is sent immediately after
sending the FM or LF command. After receiving the FM or LF command, the VR100
/VR200 recorder starts sending the data and thus cannot respond to the ESC S
command. The ESC S command can be returned correctly if it is sent after reading all
the data sent from the VR100/VR200 recorder.
To invoke the ESC S command, send the character “S” following 1B (1-byte
hexadecimal).
Make sure to send the terminator (CR and LF) following “ESC S.”
2.4.3 Open Command
(ESC O) C
R
L
F
where is the address (ASCII code “01” to “16”)
The open command addresses a communication destination when a host (PC) is
connected to more than one (up to 15) VR200 recorders.
This command always controls non-addressed devices.
Before issuing an open command, make sure that the previous address device is closed
by a close command.
All commands except for the execution of the trigger are valid for the addressed (after
ESC O) device (VR200) only.
The terminator must be CR + LF.
2.4.4 Close Command
(ESC C) C
R
L
F
where is the address (ASCII code “01” to “16”)
The close command closes the addressed state of a device. Only the addressed device
will respond to this command.
The terminator must be CR + LF.