8 rs-422a/485 dedicated commands, 8 rs-422a/485 dedicated commands -31, App index – Yokogawa µR20000 User Manual

Page 74

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Commands

1

2

3

4

5

6

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

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