Measurement Computing Analyzer488 User Manual

Page 109

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Section 4

Serial Controller

4.15

@

The system ID command @, followed by a CR and/or LF, is used to unlock the

Analyzer488 from an inappropriate command. When the @ command is received, the
serial port handshake line, Request To Send (RTS), is unasserted. It is asserted when
the Analyzer488 is capable of buffering commands. If XON/XOFF handshake is
selected, the software handshake state is not modified.

The @ character, referred to as the ID character, can be changed or disabled by

using the ID command. If it is anticipated that the ID character may be part of the
data

within an OUTPUT or SEND command, it should be changed or disabled.

Issuing the @ command clears the serial input buffer (pending commands) and

the serial output buffer (pending data). It is equivalent to issuing the following
commands:

DISARM
ERROR OFF
ID;@
MASK OFF
TIME OUT 10

This command does not have a query option.

TYPE

System Command

SYNTAX

@

RESPONSE

None

MODE Any

BUS STATES

None

QUERY

None

RESPONSE

EXAMPLES

PRINT #1,"@"

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