8 rs-422a/485 dedicated commands, 8 rs-422a/485 dedicated commands -31, App index – Yokogawa µR20000 User Manual
Page 74
Commands
1
2
3
4
5
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App
Index
IM 04P01B01-17E
4-31
Newest value output (GETNEW)
Output the specified number of blocks (p4)
of FIFO data back starting from the recent
acquire position (block).
• Parameters p2, p3, and p4 are valid when p1
is set to GET or GETNEW.
• If p4 is omitted, all the data of all blocks
acquired in the FIFO buffer are output.
• Be sure to set p2 and p3 so that p3 is greater
than or equal to p2.
• For the output flow of FIFO data, see appendix
4.
IS
Outputs status information.
Syntax
IS p1<terminator>
p1 Output status information (0)
Example Output status information.
IS0
Description The output status can be masked using the
status filter (IF command).
FU
Outputs user information.
Syntax
FU p1<terminator>
p1 Output user information (0)
Example Output user information.
FU0
Description Outputs the information of the user currently
connected to the recorder.
4.8 RS-422A/485 Dedicated
Commands
ESC O Opens the instrument.
The ASCII code of ESC is 1BH.
Syntax
ESC O p1<terminator:CR+LF>
p1 Instrument address (01 to 32)
Example Open the instrument at address 01.
ESC O01
Description • Specifies the address of the instrument with
which to communicate.
• Only one instrument can be opened at any
given time.
• When an instrument is opened with the ESC
O command, any other instrument that is
currently open is automatically closed.
• When this command is received correctly, the
recorder transmits the data “ESC 0 xx” (xx:
Instrument’s address). For the description of
the response, see page 5-5.
• Use CR+LF for the terminator. LF cannot be
used.
ESC C Closes the instrument.
The ASCII code of ESC is 1BH.
Syntax
ESC C p1<terminator:CR+LF>
p1 Instrument address (01 to 32)
Example Close the instrument at address 01.
ESC C01
Description • Clears the current connection with the
instrument.
• When this command is received correctly, the
recorder transmits the data “ESC C xx” (xx:
Instrument’s address). For the description of
the response, see page 5-5.
• Use CR+LF for the terminator. LF cannot be
used.
4.7 Output Commands/4.8 RS-422A/485 Dedicated Commands