Et system LAB-HP, Руководство пользователя, Страница: 24 / 57

Universal interface (Option)
20 ET System electronic GmbH
SCR,I,15 2. script command: I = 15 A
SCR,UI 3. script command: mode UI
SCR,RUN 4. script command: activate output
SCR,LOOPCNT,10 5. start address loop
SCR,U,12 6. script command: U = 12 V
SCR,DELAY,8 7. script command: wait 8 ms
SCR,U,1 8. script command: U = 1 V
SCR,DELAY,1000 9. script command: wait 1 s
MODE,SKRIPT Activate script mode
SB,R Start script
SS or *PDU ‐ Save Setup
Saves present unit parameters (interface parameter and controller parameter). No return value.
STATUS ‐ Status
Query of device status. Return value in binary units. Function of the bits within the status byte:
Bit Function
D15
Number of units in M/S mode. If no other device is
connected, 1 is displayed, if two devices are connected to
the bus, 2 is displayed etc. If M/S mode was disabled via
configuration menu, 0 is displayed.
D14
D13
D12
D11 ‐ reserved ‐
D10 ‐ reserved ‐
D9 ‐ reserved ‐
D8 Limit mode, unit in power limitation mode
D7 Limit mode, unit in current limitation mode
D6 Local lockout (1 = LLO active, 0 = LLO not active)
D5 Local (1 = front panel operation)
D4 Remote (1 = digital interface operation)
D3 ‐ reserved ‐
D2 ‐ reserved ‐
D1 Standby (1 = unit in standby mode)
D0 OVP (1 = shut down by over voltage protection)
Example:
STATUS Status query
STATUS,0000000100010000 Unit answers: Remote operation mode, power limitation
UA[,<U
max
>] ‐ Set U
max
This command adjusts the voltage limitation. Entering the command without parameters displays the present set point.
If the set point exceeds the maximum voltage of the unit, the range error bit within the ESR register of the interface is
set. The present set point remains unchanged. If the set point is higher than the selected value for U
limit
, but lower than
the unit’s maximum voltage, voltage limitation is restricted to U
limit
. There is no error message.
Example:
GTR Remote control operation
OVP,320 Over voltage protection 320 V
UA,100 Output voltage 100 V
IA,10 Output current 10 A
SB,R Output is active
UA,400 Output voltage 400 V. This command is ignored because the voltage is higher than the maximum voltage of the unit.
Range error is set within the status byte.
UA,250 Output voltage 250 V. Since the output voltage was limited to 200 V via configuration menu, voltage limitation is adjusted
to 200 V. An error bit is not set.
UA Query of adjusted voltage
UA,200.0V Unit answers: set point U
a
= 200 V
In master/slave mode the voltage of the programmed device is set. In master/slave serial connection the total voltage
is n x UA.
Example: