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-rwxr-xr-xbin/kaxxxxp-viewer59
1 files changed, 58 insertions, 1 deletions
diff --git a/bin/kaxxxxp-viewer b/bin/kaxxxxp-viewer
index 277fbb4..9eaf51d 100755
--- a/bin/kaxxxxp-viewer
+++ b/bin/kaxxxxp-viewer
@@ -193,6 +193,14 @@ class KA320:
time.sleep(0.1)
# assert self.get_status().over_current_protection_enabled == enable
+ def set_max_voltage(self, max_voltage):
+ self.ser.write(f"VSET{self.channel:d}:{max_voltage:05.2f}".encode())
+ time.sleep(0.1)
+
+ def set_max_current(self, max_current):
+ self.ser.write(f"ISET{self.channel:d}:{max_current:05.3f}".encode())
+ time.sleep(0.1)
+
def get_max_voltage(self):
return float(self.rw(f"VSET{self.channel:d}?".encode(), 5, True))
@@ -228,7 +236,17 @@ def graceful_exit(sig, frame):
terminate_measurement = True
-def measure_data(port, filename, duration, channel=1, ocp=False, ovp=False):
+def measure_data(
+ port,
+ filename,
+ duration,
+ channel=1,
+ ocp=False,
+ ovp=False,
+ max_voltage=None,
+ max_current=None,
+ on_off=False,
+):
global terminate_measurement
signal.signal(signal.SIGINT, graceful_exit)
@@ -243,6 +261,19 @@ def measure_data(port, filename, duration, channel=1, ocp=False, ovp=False):
else:
output_handle = tempfile.TemporaryFile("w+")
+ if max_voltage or max_current:
+ # turn off output before setting current and voltage limits
+ print("Turning off outputs")
+ korad.set_output(False)
+
+ if max_voltage:
+ print(f"Setting voltage limit to {max_voltage:5.2f} V")
+ korad.set_max_voltage(max_voltage)
+
+ if max_current:
+ print(f"Setting current limit to {max_current:5.3f} A")
+ korad.set_max_current(max_current)
+
if ovp:
print("Enabling over-voltage protection")
korad.ovp(True)
@@ -251,6 +282,10 @@ def measure_data(port, filename, duration, channel=1, ocp=False, ovp=False):
print("Enabling over-current protection")
korad.ocp(True)
+ if max_voltage or max_current or on_off:
+ print("Turning on outputs")
+ korad.set_output(True)
+
if duration:
print(f"Logging data for {duration} seconds. Press Ctrl+C to stop early.")
else:
@@ -275,6 +310,10 @@ def measure_data(port, filename, duration, channel=1, ocp=False, ovp=False):
if duration and ts - start_ts > duration:
terminate_measurement = True
+ if on_off:
+ print("Turning off outputs")
+ korad.set_output(False)
+
korad.disconnect()
output_handle.seek(0)
@@ -390,6 +429,21 @@ def main():
help="Enable over-voltage protection",
)
parser.add_argument(
+ "--voltage-limit",
+ type=float,
+ help="Set voltage limit",
+ )
+ parser.add_argument(
+ "--current-limit",
+ type=float,
+ help="Set current limit",
+ )
+ parser.add_argument(
+ "--on-off",
+ action="store_true",
+ help="Enable output after starting the measurement; disable it after stopping it",
+ )
+ parser.add_argument(
"--save", metavar="FILE", type=str, help="Save measurement data in FILE"
)
parser.add_argument(
@@ -438,6 +492,9 @@ def main():
channel=args.channel,
ocp=args.over_current_protection,
ovp=args.over_voltage_protection,
+ max_voltage=args.voltage_limit,
+ max_current=args.current_limit,
+ on_off=args.on_off,
)
data = parse_data(log_data, skip=args.skip, limit=args.limit)