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-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 449956b..fb131aa 100644
--- a/devices/serial_device.py
+++ b/devices/serial_device.py
@@ -273,6 +273,7 @@ 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)
]
@@ -284,6 +285,8 @@ 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)
]
@@ -293,8 +296,8 @@ 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"}
@@ -320,6 +323,7 @@ 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
@@ -330,6 +334,7 @@ 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])]