Gossen MetraWatt 62 N Series, Руководство по эксплуатации

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GMC-I Gossen-Metrawatt GmbH 65
DCL, SDC – Device Clear Function
Functions
The device clear command clears the input and output buffers at
the interfaces (e.g. requested data which has not yet been picked
up). Interface-internal waiting times and lockouts are cleared. The
device is ready to receive data.
Addressing status Unchanged
Input and output buffers Cleared
Service request SRQ Unchanged
Status byte register MAV bit = 0, otherwise unchanged
Event registers ESR, ERA, ERB Unchanged
Enable registers ESE, ERAE, ERBE, SRE, PRE Unchanged
Set and stored parameters Unchanged
Programming
The device accepts this command:
a) Via both interfaces as device message “DCL” or “SDC” (setting
command)
Programming example (HP Basic):
OUTPUT 712;"DCL"
b) Via the IEC bus interface as addressed command SDC
(SELECTED DEVICE CLEAR)
Programming example (HP Basic):
CLEAR 712
c) Via the IEC bus interface as universal command DCL (DEVICE
CLEAR) for all bus users
Programming example (HP Basic):
CLEAR 7
DELAY – Output Off Delay for OCP
Functions
DELAY defines the delay time which must elapse before the
power output is switched off after current regulation has been
triggered (IOUT = ISET) with activated OCP function. If output
current drops back below the selected ISET value before this
delay time has elapsed, the shutdown sequence is aborted and is
started again the next time current regulation is triggered.
If the OCP function has not been activated, the DELAY setting is
of no significance.
Syntax
DELAY
value
Parameter
Value
Parameter type: real number
Setting range:
00.00
[s] –
99.99
[s]
Resolution: 10 ms
Default setting after RESET (*RST):
00.00
[s]
a) Manual Operation
See description on page 24.
b) Programming
Setting
Setting command:
DE LAY
value
Example (HP Basic):
OUTPUT 712;"DELAY 10.7"
!Output off delay: 10.7 seconds
Setting query
Query command:
DE LAY ?
Response string:
DELAY
value
Parameter format value :
nn.nn
Fixed response string length: 11 characters
Example (HP Basic):
OUTPUT 712;"DELAY?"
ENTER 712;A$
DISP A$
→
Display:
DELAY 10.70
Comments
→
page 68 OCP function
DISPLAY, DISPLAY? – Activate / Deactivate Digital Displays
Functions
The 7-segment displays can be deactivated during remote control
operation with the DISPLAY function.
Applications
Since displays need not be refreshed when deactivated, slightly
shorter measuring and response times can be achieved during
interface operation.
Syntax
DISPLAY
status
Parameter
Status
One of the following alternatives can be selected from
the group of possible text parameters:
Default setting after RESET (*RST): ON
Programming
Setting
Setting command:
DI SPLAY
status
Example (HP Basic):
OUTPUT 712;"DISPLAY OFF"
! deactivate 7-segment display
Setting query
Query command:
DI SPLAY ?
Response string:
DISPLAY
status
Possible response parameters for status :
"
OFF
" 7-segment display deactivated
"
ON
" 7-segment display activated
Fixed response string length: 11 characters
Example (HP Basic):
OUTPUT 712;"DISPLAY?"
ENTER 712;A$
DISP A$
→
Display:
DISPLAY ON
Comment
If the “REMOTE” operating mode is exited, the 7-segment display
is automatically reactivated.
Status Description
OFF
7-segment display deactivated
ON
7-segment display activated