Symmetricom 58502A Manuel d'utilisateur télécharger pdf (Page 63)

Chapter 4 Command Reference

58502A Command Summary

User’s Guide 4-5

Table 4-1. 58502A Command Summary

(Continued)

Keyword/Syntax Parameters Description

INPut (Continued)

INPUT Subsystem (Continued)

:AUTO

:AUTO?

append 0 or OFF, or

1 or ON

returns 0 or 1

Enables or disables the automatic input switching feature. 0 or

OFF disables it while 1 or ON enables it. This setting is stored

in non-volatile memory.

Query.

:DEFault

:DEFault?

A or B

returns A or B

Selects the default input channel (or port) to be used at

powerup. This setting has no impact on auto-switching and

does not affect the current input channel selection. This setting

is stored in non-volatile memory.

Query.

OUTPut:QUEStionable

OUTPut:QUEStionable Subsystem

:PACKed? returns binary

weighted decimal

Provides status on each output in a single packed integer.

Each bit is associated with an output channel. The least

significant bit = output 1, next bit = output 2, and so on. If bit is

0, output signal is present. Hence value of 0 indicates that all

outputs are outputting the source signal. If there was no output

from outputs 2 and 3, the response would be:

6 (1*0 + 2*1 + 4*1 + 8*0 + ... = 6)

[:UNPacked]? returns array of

Boolean

Provides status on each output (lowest numbered output to

highest). 0 = signal at output, 1 = no signal at output. Same

result as PACKed? (see prior command), but information on

each output is provided with separate value. If outputs 3 and 5

were not outputting the source signal, the response would be:

0,0,1,0,1,0,0,0,0,0,0,0

[SOURce]:ROSCillator

ROSCillator Subsystem (USED WITH OPTION 010 ONLY)

:WARM? 0 or 1 Reports if internal oscillator is warmed up.

0 = not warm.

1 = warm.

SYSTem

SYSTem Subsystem

:COMMunicate:SERial Node Only

:FDUPlex 0 or 1 Sets duplex. (0 = echo Off, 1 = echo On).

[:RECeive] | TRANsmit Node Only. There is a single setting of commands under this

node for both transmit and receive. Default values are in italics.

:BAUD <numeric> Sets the BAUD rate (1200, 2400, 9600, 19200).

:BITS? 7 or 8 Returns Data Bits set by PARity (7 for odd/even, 8 for none).

:PACE XON | NONE Sets flow control. (On or None).

:PARity Node Only.

[:TYPE] EVEN | ODD |

NONE

Sets parity. (Odd, Even, or None).

:ERRor? returns integer,

quoted string

First parameter is error number, quoted string is error

description.

1 2 ... 58 59 60 61 62 63 64 65 66 67 68 ... 87 88

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