Inventory

The 2-BM equipment inventory: the CORA Asset model view (the device tree, settings, vendor Models, drawings, and signal wiring) plus the computed axes. Live condition is served by the app, not this page.

Assets

One row per registered Asset under the 2-BM root (tier = Unit, bound to its Site Facility via facility_code). Hutches 2-BM-A (optics) / 2-BM-B (experiment) are Enclosures, not Assets. Condition is served live by the app.

Asset	Family	Model	Parent	Key settings	Condition
StationShutter	Shutter	(none cited)	2-BM	-	live
SampleTable	Table	(none)	2-BM	axis_layout=translation_xyz	live
RotaryDriveChassis	Housing	aerotech_tm3a	2-BM	serial 160591-A-1-1, order 730578	live
RotaryDrive	MotionController	aerotech_ensemble_ml	RotaryDriveChassis	serial 730792/1, axis_count=1, Aerotech_Native	live
Rotary	RotaryStage	aerotech_abrs250mp	LaminographyPitch	-360..360 deg, max_speed=720 deg/s (operational), aperture=35 mm, encoder_resolution=0.000676 deg	live
SampleStageDrive	MotionController	oms_vme58	2-BM	axis_count=91, OMS_VME	live
FrontEndDrive	MotionController	oms_vme58	2-BM	axis_count=91, OMS_VME	live
FrontEndWindow	Window	(none)	2-BM	OFHC-housed Be window assembly; identity-only (beam-effect deferred)	live
Window_W4_20	Window	(none)	FrontEndWindow	Be 0.25 mm, z 28718, aperture 120 x 15 mm	live
Window_W4_60	Window	(none)	FrontEndWindow	Be 0.13 mm, z 30804, aperture 25 x 120 mm	live
Window_DS	Window	(none)	FrontEndWindow	Be 0.25 mm, z 32417, aperture 8.8 x 145 mm (unlabelled, downstream-most)	live
Mirror	Mirror	(none)	MirrorTable	driven by FrontEndDrive; 4 coating stripes (a/b/c/d), held in Mono, swept per Pink energy (MIRROR-1)	live
Mirror_StripeReachX	PseudoAxis	(none)	Mirror	m1_horizontal (2bma:m3); Mono held at stripe a, Pink swept per energy	live
MirrorTable	Table	(none)	2-BM	axis_layout=virtual_pose, virtual_record=2bma:table1	live
Monochromator	Monochromator	(none)	2-BM	dmm_insertion=inserted (MODE-2); driven by FrontEndDrive	live
Monochromator_BraggArmUpstream	PseudoAxis	(none)	Monochromator	energy->upstream Bragg arm (deg)	live
Monochromator_BraggArmDownstream	PseudoAxis	(none)	Monochromator	energy->downstream Bragg arm (deg)	live
Monochromator_M2Y	PseudoAxis	(none)	Monochromator	energy->M2 vertical offset (mm)	live
ConditioningSlit	Slit	(none)	2-BM	white-beam slits; driven by FrontEndDrive	live
Filter	Filter	(none)	2-BM	foil changer; driven by FrontEndDrive	live
Filter_FoilSelector_Upstream	PseudoAxis	(none)	Filter	m17 slot index -> position (Nearest); operational selector	live
Filter_FoilSelector_Downstream	PseudoAxis	(none)	Filter	m18 slot index -> position (Nearest); bindings retained	Faulted (m18 failed 2026-06-19)
DiagnosticFlag	Screen	(none)	2-BM	2bma:m44 at z=32500; raised in Mono, parked in Pink	live
DiagnosticFlag_Y	PseudoAxis	(none)	DiagnosticFlag	energy->flag height (Mono); parked out in Pink	live
SampleSlit	Slit	(none)	2-BM	B-station slits; driven by FrontEndDrive	live
SampleSlit_VerticalTop	PseudoAxis	(none)	SampleSlit	energy->top blade beam position (mm)	live
SampleSlit_VerticalBottom	PseudoAxis	(none)	SampleSlit	energy->bottom blade beam position (mm)	live
SampleSlit_VerticalCenter	PseudoAxis	(none)	SampleSlit	derived MidRange(top, bot); beam-walk centre	live
SampleSlit_VerticalAperture	PseudoAxis	(none)	SampleSlit	derived Difference(top, bot); constant 20 mm gap	live
SampleTop_X	LinearStage	kohzu_cyat070	Rotary	-10..10 mm, max_speed=1 mm/s, encoder_resolution=0.0005 mm	live
SampleTop_Z	LinearStage	kohzu_cyat070	SampleTop_X	same Model/controller as SampleTop_X	live
HexapodDrive	MotionController	aerotech_automation1_ixr3	2-BM	serial 486125-01, axis_count=6, Aerotech_Native	live
Hexapod	Hexapod	aerotech_hex300	SampleTable	serial 486060-01; full HEX300 envelope (see Settings)	live
Hexapod_X	PseudoAxis	(none)	Hexapod	DoF; translation X	live
Hexapod_Y	PseudoAxis	(none)	Hexapod	DoF; translation Y	live
Hexapod_Z	PseudoAxis	(none)	Hexapod	DoF; translation Z; modelled, not wired in current EPICS	modelled (unwired)
Hexapod_Roll	PseudoAxis	(none)	Hexapod	DoF; rotation A about X	live
Hexapod_Pitch	PseudoAxis	(none)	Hexapod	DoF; rotation B about Y	live
Hexapod_Yaw	PseudoAxis	(none)	Hexapod	DoF; rotation C about Z; modelled, not wired in current EPICS	modelled (unwired)
LaminographyPitch	TiltStage	kohzu_sa16a	Hexapod	Kohzu SA16A 2bmb:m49; tomo/lamino = tilt setpoint	live
PropagationDistanceDrive	MotionController	aerotech_ensemble_hle	2-BM	serial 228849-02, axis_count=1, Aerotech_Native	live
Timing	TimingController	(none)	2-BM	softGlueZynq trigger box; protocol=EPICS; no controller_id	live
ApertureFineDrive	MotionController	piezosystem_jena_nv200d	2-BM	two Jena NV200D units; fine-positions the Aperture coded-mask; FPGA-stepped via Timing	live
DetectorTable	Table	(none)	2-BM	axis_layout=virtual_pose, virtual_record=2bmb:table3	live
DetectorTable_X	PseudoAxis	(none)	DetectorTable	IOC virtual axis; 2bmb:table3.X	live
DetectorTable_Y	PseudoAxis	(none)	DetectorTable	IOC virtual axis; 2bmb:table3.Y	live
DetectorTable_Z	PseudoAxis	(none)	DetectorTable	IOC virtual axis; 2bmb:table3.Z	live
DetectorTable_Roll	PseudoAxis	(none)	DetectorTable	IOC virtual axis; raw AZ; 2bmb:table3.AZ	live
DetectorTable_Pitch	PseudoAxis	(none)	DetectorTable	IOC virtual axis; raw AX; 2bmb:table3.AX	live
DetectorTable_Yaw	PseudoAxis	(none)	DetectorTable	IOC virtual axis; raw AY; 2bmb:table3.AY	live
Housing	Housing	(none)	PropagationDistance	Microscope chassis; installed into a Mount	live
Turret	LinearStage	(microscope catalog)	Housing	-60.3784..59.2300 mm (DET-11), encoder_resolution=0.0016 mm	live
Objective_10x	Objective	(microscope catalog)	Housing	mag 10.0, NA 0.28, f=20 mm, WD 33.5 mm	live
Objective_2x	Objective	(microscope catalog)	Housing	mag 2.0, NA 0.055, f=100 mm, WD 34 mm	live
Objective_1.1x	Objective	(microscope catalog)	Housing	mag 1.1, NA 0.03, f=200 mm, WD 50 mm	live
Objective_Selector	PseudoAxis	(none)	Housing	writes MCTOptics LensSelect; (lens x camera) turret lookup, Camera 0 column as 1D provenance rule (DET-11)	live
PropagationDistance	LinearStage	aerotech_pro225sl	DetectorTable	sample-to-detector rail; driven by PropagationDistanceDrive	live
Camera	Camera	(microscope catalog)	Housing	5 MP FLIR Oryx; 2448x2048, 3.45 um, 12 bit, 162 Hz, CMOS GlobalShutter	live
Camera_HighRes	Camera	flir_oryx_31mp	Housing	31 MP FLIR Oryx; pixel 3.45 um; other settings pending	live (settings pending)
Camera_Selector	LinearStage	schunk_lptm_30	Housing	Schunk LPTM 30; Pos.0=20, Pos.1=15; stage settings pending	live (settings pending)
Scintillator	Scintillator	(microscope catalog)	Housing	thickness 100 um, decay 0.07 us	live

Microscope-bound Models (turret motor, Mitutoyo MPLAPO kit, FLIR Oryx, Crytur LuAG) live on the Microscope deployment page. The kohzu_sa16a binding for LaminographyPitch is on the Sample tower page.

Settings

Per-asset settings the source spells out in prose. Open-item tags (DRIVE-1, DRIVE-2, TIME-1) kept inline.

Asset	Settings
SampleTable	axis_layout=translation_xyz; direct motors 2bmb:m24 Y, 2bmb:m20 Z, 2bmb:m21 X-up, 2bmb:m22 X-down
DetectorTable	axis_layout=virtual_pose; virtual_record=2bmb:table3; geometry=SRI: 3 Y-supports, 2 X-supports, 1 Z-support
MirrorTable	axis_layout=virtual_pose; virtual_record=2bma:table1; geometry=SRI support table; X axes M0X/M2X driven by energy-change IOC; bind table-X surface only until M1Y=2bma:m3 IOC substitution error fixed
Monochromator	dmm_insertion=inserted (closed enum inserted | retracted, MODE-2); DMM Y motors 2bma:m26 / m27 / m29 to 0 in (Mono) / -10 mm out (Pink); driven by FrontEndDrive
RotaryDrive	serial_number=730792/1; firmware_version=unknown-pending-confirmation (DRIVE-2); axis_count=1; protocol=Aerotech_Native; installed in RotaryDriveChassis
RotaryDriveChassis	altids: serial 160591-A-1-1 (SerialNumber), order 730578 (Other); drawing 630D2079 REV-H; inventory-only, no command surface
PropagationDistanceDrive	serial_number=228849-02; firmware_version=unknown-pending-confirmation (DRIVE-2); axis_count=1; protocol=Aerotech_Native; IOC handle 2bmbAERO (EPICS_PV altid); addressed 2bmbAERO:m1
SampleStageDrive	serial_number=unknown-pending-confirmation (DRIVE-1); firmware_version=unknown-pending-confirmation (DRIVE-2); axis_count=91; protocol=OMS_VME; crate ioc2bmb, no IP (VME-bus)
FrontEndDrive	serial_number=unknown-pending-confirmation (DRIVE-1); firmware_version=unknown-pending-confirmation (DRIVE-2); axis_count=91; protocol=OMS_VME; crate ioc2bma, no IP (VME-bus)
HexapodDrive	serial_number=486125-01; firmware_version=unknown-pending-confirmation (DRIVE-2); axis_count=6; protocol=Aerotech_Native; Automation1-iXR3 in separate rack
Timing	firmware_version=2.0 (softGlueZynq gateware/bitstream); serial_number=unknown (IOC-admin only, not beamline-retrievable); output_channel_count=unknown (IOC-admin only, not beamline-retrievable); protocol=EPICS; 2bmbMZ1:SG:
Rotary	min_position=-360 deg; max_position=360 deg; max_speed=720 deg/s (operational soft limit); max_speed_datasheet=3000 deg/s (500 rpm); encoder_resolution=0.000676 deg; homing_offset=0 deg; aperture=35 mm; accuracy_rotation=2 arcsec; repeatability_rotation=1 arcsec; load_capacity_axial=66 kg; load_capacity_radial=36 kg; load_capacity_tilt=28 Nm; stage_mass=15.6 kg; altid serial 146853-A-1-1-X; part ABRS-250MP-M-AS; datasheet on file (#164)
SampleTop_X	min_position=-10 mm; max_position=10 mm; max_speed=1 mm/s; encoder_resolution=0.0005 mm; channel 2bmb:m18
SampleTop_Z	same Model kohzu_cyat070 + controller as SampleTop_X; channel 2bmb:m17
Hexapod	travel_x=55 mm, travel_y=60 mm, travel_z=25 mm, travel_a=15 deg, travel_b=15 deg, travel_c=30 deg; max_speed_translation=25 mm/s, max_speed_rotation=15 deg/s; resolution_translation=20 nm, resolution_rotation=0.2 urad; accuracy_translation=1 um, accuracy_rotation=10 urad; load_capacity_vertical=45 kg, load_capacity_horizontal=21 kg; stage_mass=12 kg; altid serial 486060-01
Scintillator	thickness=100 um; decay_time=0.07 us
Camera	sensor_width=2448 pixel; sensor_height=2048 pixel; pixel_size=3.45 um; bit_depth=12 bit; max_framerate_hz=162 Hz; sensor_kind=CMOS; readout_mode=GlobalShutter; altids model Oryx ORX-10G-51S5M, serial 19173710, firmware 1710.0.0.0, EPICS 2bmSP1:
Camera_HighRes	model Oryx ORX-10G-310S9M; serial 22150530; firmware 1904.0.72.0; EPICS 2bmSP2:; pixel_size=3.45 um; remaining Camera-schema settings pending
Camera_Selector	Schunk LPTM 30 (2bmb:m5); Pos.0=20, Pos.1=15; min/max/max_speed/encoder_resolution pending
Turret	min_position=-60.3784 mm; max_position=59.2300 mm; encoder_resolution=0.0016 mm; Nanotec ST4118M1404-B, Heidenhain ERO 1420 encoder; MCTOptics resolves the (lens x camera) position (DET-11), Camera 0 column: 1.1x=-59.8184 mm, 2x=-0.5734 mm, 10x=58.8707 mm
Objective_10x	magnification=10.0; numerical_aperture=0.28; focal_length=20 mm; working_distance=33.5 mm
Objective_2x	magnification=2.0; numerical_aperture=0.055; focal_length=100 mm; working_distance=34 mm
Objective_1.1x	magnification=1.1; numerical_aperture=0.03; focal_length=200 mm; working_distance=50 mm

Vendor catalog

Models bound to non-microscope 2-BM Assets. Model ids are derived from (manufacturer, part number), so one vendor product converges on one id. Microscope-housing Models are on the Microscope deployment page.

Generated from the catalog

This table is generated from catalog/catalog.yaml. Edit the catalog, not this table.

Model	Manufacturer	Part number	Used by
aerotech_hex300	Aerotech	HEX300-230HL-E1-PL4-TAS	Hexapod
aerotech_abrs250mp	Aerotech	ABRS-250MP-M-AS	Rotary
aerotech_ensemble_ml	Aerotech	ENSEMBLEML 10-40-IO-MXH	RotaryDrive
aerotech_automation1_ixr3	Aerotech	Automation1-iXR3-VL1-VB4-VB4-SB0CT222222-P1P1P1P1P1P1-CO-LC1MT1PSO6-SI0-TAS	HexapodDrive
aerotech_ensemble_hle	Aerotech	EnsembleHLe10-40-A-IO-MXH	PropagationDistanceDrive
aerotech_pro225sl	Aerotech	PRO225SL-1000	PropagationDistance
aerotech_tm3a	Aerotech	TM3-A-20B VDC-20B VDC / NO SPLIT / PS24-1 / C1ML-06 / C2ML-09 / US-115VAC	RotaryDriveChassis
oms_vme58	Oregon Micro Systems	VME58	SampleStageDrive, FrontEndDrive
kohzu_cyat070	Kohzu	CYAT-070	SampleTop_X, SampleTop_Z
piezosystem_jena_nv200d	Piezosystem Jena	NV200D/NET	ApertureFineDrive

Controller back-references: RotaryDrive->Rotary.controller_id; HexapodDrive->Hexapod.controller_id; PropagationDistanceDrive->PropagationDistance.controller_id (IOC 2bmbAERO); SampleStageDrive->SampleTop_X (2bmb:m18) / SampleTop_Z (2bmb:m17) + 89 further motors on ioc2bmb; FrontEndDrive->Mirror, Monochromator, ConditioningSlit, SampleSlit, Filter on ioc2bma. The Objective_Selector (2bmb:m1) and Camera_Selector (2bmb:m5) steppers run through the SampleStageDrive OMS crate, not distinct controller Assets. The six Hexapod_* DoF facets bind no Model (the physical Hexapod carries aerotech_hex300).

Engineering drawings

One canonical (system, number, revision) triple per Asset, except Rotary, which cites both its per-unit vendor drawing and the ABRS family datasheet. Optique Peter MAN-11863 (rev 0521-0465-A) is the shared housing manual covering every Microscope-bound constituent.

Asset	Drawing	System
Hexapod	Hex300-Data-Sheet rev D20250203	EDMS
Rotary	630C2125 rev (-)	EDMS
Rotary	ABRS series datasheet (2021-01)	Aerotech
RotaryDriveChassis	630D2079 rev H	EDMS
PropagationDistance	MAN-11863 rev 0521-0465-A	EDMS
Turret	MAN-11863 rev 0521-0465-A	EDMS
Objective_10x	MAN-11863 rev 0521-0465-A	EDMS
Objective_2x	MAN-11863 rev 0521-0465-A	EDMS
Objective_1.1x	MAN-11863 rev 0521-0465-A	EDMS
Scintillator	MAN-11863 rev 0521-0465-A	EDMS
StationShutter	41050401-410003 rev (-) (P6-50 shutter element; assembly 41050401-500000)	ICMS
Mask	4102020101-240000 (M3-24 front-end exit mask; RSS 02-BM-A-F-01)	ICMS
Window_W4_20	4105090804-200000 (front-end Be window W4-20)	ICMS
Window_W4_60	4105090804-600000 (front-end Be window W4-60)	ICMS
Window_DS	4102020106-400000 (front-end Be window, unlabelled, downstream-most)	ICMS

Not yet cited: Kohzu CYAT-070 datasheet (SampleTop_*), a FLIR Oryx datasheet (Camera).

Signal wiring

Trigger and step signals are modelled as typed ports plus wires resolved at Plan-bind time. Executable model: apps/api/tests/integration/scenarios/test_2bm_trigger_wiring.py.

Fine-positioning piezo controllers

• ApertureFineDrive = two Piezosystem Jena NV200D/NET single-channel controllers (staff item_028), one per axis (X 10.54.113.126, Y 10.54.113.125), EPICS IOC JenaNV200D on host arcturus. They fine-position the Aperture coded-mask via a nanoSXY 120 CAP XY flexure stage (part T-223-06D, 120 um nominal / 100 um closed-loop per axis, 12.5 mm clear aperture); the axes step under FPGA trigger for compressive-sensing dithered sampling (PIEZO-1/2/4).
• The Jena NV100D (formerly the provisional OpticsFineDrive, IOC JenaNV100D) is physically present but not in operational use at 2-BM: it lacks the external trigger mode tomoscan fly-scan needs, so no Run drives it. Recorded as provenance, not modelled as an active controller.
• The driven X/Y LinearStage axis Assets and the Aperture identity registration are deferred to a follow-up slice; the FPGA out2/out3 -> X/Y cable map needs operator confirmation (PIEZO-5).

NV200D trigger wiring

Asset	Port	Direction	signal_type
Timing	out2, out3	OUTPUT	step_trigger_ttl
ApertureFineDrive	step_x_in, step_y_in	INPUT	step_trigger_ttl

• Wires: Timing.out2 -> ApertureFineDrive.step_x_in, Timing.out3 -> ApertureFineDrive.step_y_in (JenaX/JenaY land on FPGA out2/out3, item_028); up to 1024 positions/axis.
• Gate-delay PVs: 2bmbMZ1:SG:GateDly-3_DLY (labelled "X axis delay"), 2bmbMZ1:SG:GateDly-2_DLY (labelled "Y axis delay"); the label-to-cable map appears crossed, recorded verbatim and flagged for confirmation.
• Ports sit on the controller box today; they migrate onto per-axis Assets when registered.

Camera trigger wiring

Asset	Port	Direction	signal_type
Timing	camera_trigger_out	OUTPUT	frame_trigger_ttl
Camera	trigger_in	INPUT	frame_trigger_ttl

• One wire: Timing.camera_trigger_out -> Camera.trigger_in (item_060). frame_trigger_ttl (start exposure) is distinct from the piezo step_trigger_ttl (advance a motion step).
• Two labels open for staff: the exact FPGA output channel feeding the camera (path ends at camera Line2, no box-side output named), and the GateDly1 block name (unconfirmed vs the source-grounded GateDly-2/GateDly-3).
• softGlue Width/DLY count 10 MHz clock cycles (100 ns/count, so Width=100 = 10 us pulse); per-scan values are Method/Plan config.

Computed axes

The PseudoAxis Assets whose position is computed from the motors underneath, divided by who owns the math: firmware SolverReference (hexapod), an edge IOC with no rule (detector table), or a Calibration-backed LookupTable (energy axes and foil selector). Executable models cited per subsection.

Hexapod DoF model

One physical Device (vendor-sealed Aerotech HEX300; inverse kinematics in firmware solver 2bmHXP). Six DoF surfaced as PseudoAxis sub-modules, each carrying a SolverReference partition rule; per-DoF envelope stays on the Hexapod settings, not duplicated onto facets.

DoF Asset	Kind	Axis	Vendor label	EPICS channel
Hexapod_X	translation	along X	n/a	2bmHXP:m1
Hexapod_Y	translation	along Y	n/a	2bmHXP:m2
Hexapod_Z	translation	along Z	n/a	none (no operator handle)
Hexapod_Roll	rotation	about X	A (travel_a)	2bmHXP:m5
Hexapod_Pitch	rotation	about Y	B (travel_b)	2bmHXP:m4
Hexapod_Yaw	rotation	about Z	C (travel_c)	none (no operator handle)

• Z and Yaw exist physically but are not exposed as operator channels in 2-BM's current EPICS (no m3/m6); CORA still models all six (deployment-configuration limit, not a device one).
• Constituent-port wiring: each DoF reads feedback from Hexapod via Plan.wires (not a partition-rule field). Hexapod exposes x/y/z_feedback_out (position_feedback_linear_mm) and roll/pitch/yaw_feedback_out (position_feedback_rotation_deg); each facet has one constituent_in INPUT plus one <axis>_out setpoint OUTPUT. Six wires, one per DoF (Hexapod.<axis>_feedback_out -> Hexapod_<Axis>.constituent_in). validate_pseudoaxis_fanout exempts SolverReference from the arity check; decomposition is owned by the firmware solver.

Detector table axes

Six virtual axes on the 2bmb:table3 record, modelled as PseudoAxis sub-Assets of DetectorTable. No partition rule and no constituent wiring: the table_full IOC computes the pose from six support motors (M0X / M0Y / M1Y / M2X / M2Y / M2Z) in SRI geometry. Addressing is a direct ControlPort write to the table3.* PV (spine/edge seam). Model: apps/api/tests/integration/scenarios/test_2bm_optical_tables_setup.py.

Axis Asset	Kind	table3 field	Raw label
DetectorTable_X	translation	.X	n/a
DetectorTable_Y	translation	.Y	n/a
DetectorTable_Z	translation	.Z	n/a
DetectorTable_Pitch	rotation	.AX	AX
DetectorTable_Yaw	rotation	.AY	AY
DetectorTable_Roll	rotation	.AZ	AZ

Angular mapping (AX=pitch, AY=yaw, AZ=roll) is staff-confirmed (STAGE-9).

Energy-tracking optic axes

Setting energy is a discrete coordinated move. The staff energy-change IOC stores per-energy positions (store_0 saved table) and drives ~15 motors. Each per-axis relationship is modelled as a continuous curve: a PseudoAxis carrying a LookupTable partition rule converting energy (unit_in=keV) to axis position, pinning a Calibration revision by id (energy_position_curve quantity). Each axis carries a Mono curve (beam_mode=mono, the active rule) and a sibling Pink curve (beam_mode=pink, parked constant). invertible is per-axis: the Bragg arms + M2Y are monotonic in energy (invertible=True); the slit blades (constant 20 mm aperture, non-monotonic centre walk) and the flag Y (flat at the top of its range) are invertible=False with readback_aggregator_kind=Identity. Coordinating operation = the energy_setting Procedure, which accepts a free keV value between saved points. Models: test_2bm_energy_curves_setup.py (curves) + test_2bm_energy_setting.py (operation).

Configured Mono energies (the curve x-points, real): 13.374, 13.574, 18.0, 20.0, 25.0, 25.584 keV; Pink: 30, 40, 50, 60 keV (axes parked). Pink mode bypasses the monochromator. Beam-mode switching itself is on the Procedures page, not a virtual axis.

Axis Asset	Motors / handle	Curve	unit_out
Monochromator_BraggArmUpstream	dmm_us_arm	energy -> upstream Bragg arm	deg
Monochromator_BraggArmDownstream	dmm_ds_arm	energy -> downstream Bragg arm	deg
Monochromator_M2Y	dmm_m2_y	energy -> M2 vertical offset compensator	mm
SampleSlit_VerticalTop	b_slit_top	energy -> top blade beam-walk	mm
SampleSlit_VerticalBottom	b_slit_bot	energy -> bottom blade beam-walk	mm
DiagnosticFlag_Y	energy_move_flag (2bma:m44)	energy -> flag height (Mono), parked out in Pink	mm
Mirror_StripeReachX	m1_horizontal (2bma:m3)	held at stripe a in Mono (m3 1.0), swept per Pink energy (3.039/13/39/49)	mm

• Slit aperture is held constant at 20 mm; only the centre tracks the beam walk (non-monotonically). The centre and aperture are modelled as derived axes: SampleSlit_VerticalCenter (Aggregation MidRange) and SampleSlit_VerticalAperture (Aggregation Difference) over the two blades. Aggregation is one-way (computed from constituents), so they are read-only views. The rules declare the relationship; binding the two specific blades via constituent port wiring (the hexapod-pose pattern) is deferred with the rest of the per-facet conduct wiring.
• DMM insert/bypass (MODE-2): the DMM is physically inserted in Mono and retracted in Pink. This two-state, mode-keyed position is NOT a per-energy curve; it is the dmm_insertion setting on the Monochromator (closed enum inserted | retracted, the Table.axis_layout pattern), with the three DMM Y motors (2bma:m26 / m27 / m29, driven together to 0 in / -10 mm out) documentary in beamline.yaml. The coordinated move that drives it is the deferred beam_mode_change (MODE-3 / MIRROR-1).
• Mirror coating stripe (MIRROR-1 / MODE-3): the stripe selector m1_horizontal (2bma:m3) is held at stripe a in Mono (constant m3 1.0) and swept per Pink energy (3.039 / 13 / 39 / 49 mm at 30 / 40 / 50 / 60 keV), modelled as the Mirror_StripeReachX facet (constant Mono curve + swept Pink sibling, invertible=False). The named-stripe-to-position map (a Pt / b,c,d W-Si) is in the Mirror stripes list in beamline.yaml. The coordinated mirror-table X move (m1mox / m1m2x = 2bma:m1 / m4) that stripe d needs at 60 keV stays deferred to its MirrorTable virtual_pose axes (2bm-docs#171); the mirror angle is constant 2.615 mrad across all modes/energies.
• Not energy axes: crystal2_z (M2 Z, 2bma:m8) is a setup translation the IOC does not drive, so it carries no curve.
• DMM substrate stripe is a one-time setup, not a per-energy selector (ENERGY-6, settled): the substrate carries two W-B4C/Si multilayer stripes (periods 24 and 13.8 angstrom, 4 mm apart), recorded as the Monochromator stripes list with active_stripe=24.0 in beamline.yaml. The 24 angstrom stripe is the in-beam one (inferred from Bragg-arm geometry); the 13.8 angstrom stripe is never calibrated into store_0. The lateral X motors 2bma:m25 / 2bma:m28 are constant alignment positions in both modes (ENERGY-5), not stripe selectors, so CORA models no DMM stripe-selector axis. Switching stripes would be a 4 mm lateral move plus a full recalibration, outside any current move.
• Curves carry the REAL saved store_0 positions (ENERGY-1/2, FLAG-1): full 6-energy Mono curves plus parked Pink curves. Runtime eval_lookup_table is wired; out-of-range refuses (extrapolation_kind=Error, staff-confirmed ENERGY-4: the inter-mode band 25.584-30 keV is not bridgeable by interpolation).
• Recalibration updates these curves in place: the energy_characterization Procedure (channel-cut rocking curve, item_022) re-saves the corrected positions as a new revision of the affected energy_position_curve, MeasuredSource-cited, preserving the prior revision as history. There is no separate energy offset (ENERGY-8).

Filter foil selection

Discrete "pick one of N" move. Two PseudoAxis facets under Filter (Filter_FoilSelector_Upstream for the operational 2bma:m17, Filter_FoilSelector_Downstream for the 2bma:m18), each carrying a LookupTable rule with interpolation_kind=Nearest backed by its own index_position_table Calibration. extrapolation_kind=Error (cannot select an absent foil); invertible=False with readback_aggregator_kind=Identity. The downstream m18 paddle failed 2026-06-19 (parked 107.19 mm), modelled condition Faulted with bindings retained and lifecycle still Active; m17 is the sole operational selector. Runtime proven end-to-end in apps/api/tests/integration/test_pseudoaxis_roundtrip.py; model: test_2bm_filter_foil_setup.py.

Downstream-paddle slot positions (REAL, staff-published):

Slot index	Material	Position
0	600 um Al	0
26	150 um Al	26
53	300 um C	53
80	50 um C	80
106	None	106

The position unit is mm, staff-confirmed (caget 2bma:m18.EGU, FOIL-1). Foil ATTENUATION (Attenuable) and the energy-dependent mirror coating stripe (2bma:m3) are deliberately out of scope here (the stripe is modelled with the beam-mode work).