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authorChristian Kolset <ckolset@colostate.edu>2026-07-29 12:59:10 -0600
committerChristian Kolset <ckolset@colostate.edu>2026-07-29 12:59:10 -0600
commit9360dea6e6327004b905eb6d7c782cc7c0d3ba13 (patch)
tree54366e05a55f96cd4c676d71cfb2136d72392984 /devices/serial_device.py
parentb407a079000f6a4b04ecf38eca17c57719e7a7ec (diff)
Hide non-writable channels from Controls picker, gate writes on enabled+writable
Adds ChannelConfig.writable so the Controls editor can only bind to channels with a real write mapping (VS/MA/ME/MD/ST for CML, do*/DO for digital I/O, write_cmd-configured SCPI channels, holding-register Modbus channels) instead of read-only telemetry — this is exactly the class of mistake hit earlier (binding a motor-speed control to M1_TV instead of M1_VS). Also carries forward the enabled-channel gating for controls (hide disabled channels from the picker, block writes to them at _write() time) done alongside this investigation. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Diffstat (limited to 'devices/serial_device.py')
-rw-r--r--devices/serial_device.py9
1 files changed, 7 insertions, 2 deletions
diff --git a/devices/serial_device.py b/devices/serial_device.py
index 067656a..8062624 100644
--- a/devices/serial_device.py
+++ b/devices/serial_device.py
@@ -264,6 +264,7 @@ class SerialDevice(BaseDevice):
unit=sc.get("unit", ""),
min_value=-1e9, max_value=1e9,
color=_COLORS[i % len(_COLORS)],
+ writable=bool(sc.get("write_cmd")),
)
for i, sc in enumerate(self._scpi_channels)
]
@@ -275,6 +276,8 @@ class SerialDevice(BaseDevice):
unit=mc.get("unit", ""),
min_value=-1e9, max_value=1e9,
color=_COLORS[i % len(_COLORS)],
+ # Holding registers (FC03) accept writes (FC06); input registers (FC04) don't.
+ writable=(mc.get("function_code", 0x03) == 0x03),
)
for i, mc in enumerate(self._mb_channels)
]
@@ -284,8 +287,8 @@ class SerialDevice(BaseDevice):
ChannelConfig("force", "Force", "N", -5000.0, 5000.0, color=_COLORS[0]),
ChannelConfig("unit_code", "Unit Code", "", 0.0, float(len(_MARK10_UNITS) - 1), color=_COLORS[1]),
# Write-only action channels (no reading — for control buttons)
- ChannelConfig("zero", "Zero Gauge", "", 0.0, 1.0, color=_COLORS[2]),
- ChannelConfig("cycle_units", "Cycle Units", "", 0.0, 1.0, color=_COLORS[3]),
+ ChannelConfig("zero", "Zero Gauge", "", 0.0, 1.0, color=_COLORS[2], writable=True),
+ ChannelConfig("cycle_units", "Cycle Units", "", 0.0, 1.0, color=_COLORS[3], writable=True),
]
elif fmt == "cml":
_CMD_UNITS = {"TP": "counts", "TV": "counts/s", "TC": "%×10", "TS": "flags"}
@@ -311,6 +314,7 @@ class SerialDevice(BaseDevice):
unit=_WRITE_UNITS.get(cmd, ""),
min_value=-1e6, max_value=1e6,
color=_COLORS[color_idx % len(_COLORS)],
+ writable=True,
))
color_idx += 1
# Write-only action channels — motor must be enabled (ME) before VS/MA take effect
@@ -321,6 +325,7 @@ class SerialDevice(BaseDevice):
unit="",
min_value=0.0, max_value=1.0,
color=_COLORS[color_idx % len(_COLORS)],
+ writable=True,
))
color_idx += 1
return channels or [ChannelConfig("M1_TP", "M1 TP", "counts", color=_COLORS[0])]