Computer Operations 4

Computer Interface Commands and Operation

Table 4-5. Command and Query Reference (cont)

ALARM_DO_LEVEL

Alarm Digital Output Level

 

 

 

Configures rear panel ALARM OUTPUTS lines for I/O functions.

 

ALARM_DO_LEVEL <DO_line>,<DO_state>

 

 

 

<DO_line> = (0 .. 3)

 

 

 

<DO_state>

= 1 (high) 0 (low)

 

The rear panel ALARM OUTPUTS lines 0 to 3 are hard-wired to output

 

alarm conditions for channels 0 to 3, respectively. If all or some of

 

channels 0 to 3 are not configured for alarm outputs, the associated

 

ALARM OUTPUTS line can be assigned to go logic high or low with this

 

command. The line may be set to a logical low. (nominal =0.7V DC), or set

 

to a logical high (nominal =5.0V DC).

 

Example: ALARM_DO_LEVEL 3,0 [Set ALARM OUTPUTS line 3 to a

 

logical 0.]

 

 

 

 

 

 

 

 

ALARM_DO_LEVELS?

Alarm Output State Query

 

 

 

Returns an integer between 0 and 15 that summarizes the logical state of

 

the rear panel ALARM OUTPUTS lines 0 to 3. Since the lines can be used

 

as alarm outputs or DIGITAL I/O functions, the query represents the actual

 

conditions at time of query. There are 16 possibilities, as shown below (0 =

 

logic low):

 

 

 

 

 

Line

Line

Line

Line

Returned

 

3

2

1

0

Integer

 

0

0

0

0

0 -(all 4 alarms active)

 

0

0

0

1

1

 

0

0

1

0

2

 

0

0

1

1

3

 

0

1

0

0

4

 

0

1

0

1

5

 

0

1

1

0

6

 

0

1

1

1

7

 

1

0

0

0

8

 

1

0

0

1

9

 

1

0

1

0

10

 

1

0

1

1

11

 

1

1

0

0

12

 

1

1

0

1

13

 

1

1

1

0

14

 

1

1

1

1

15 -(no alarms active)

Example: ALARM_DO_LEVELS? returns 15 [All lines are logic high.]

4-29

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Image 133
Fluke 2635A user manual Alarmdolevels?
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2635A specifications

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