verified connector library

West Plus P4100/P6100/P8100 controller (needs RS485 option)

Register map(s) for this device, each at the trust rung it earned. Addresses are 0-based as on the wire; word order and scaling are only confirmed at the hardware-verified rung.

interop-verified

Read + decoded cleanly over a real network vs an independent third-party Modbus test server (transport and framing; reads are remapped into the server's register window, so the map's own addresses are NOT exercised). Does NOT prove word order/scaling against the actual device.

pointaddress (0-based)typescaleunit
process_variable1I161
setpoint2I161
output_power3I161
deviation4I161s
secondary_proportional_band5U160.1
primary_proportional_band6U160.1
alarm_1_value13I161
alarm_2_value14I161
actual_setpoint21I161
setpoint_upper_limit22I161
setpoint_lower_limit23I161
setpoint_ramp_rate24U161
setpoint_229I161
remote_setpoint30I161
setpoint_134I161
setpoint_select35U161

link settings as documented (unverified): RTU/ASCII; default 4800 8N1; unit ID 1; FC 01,02,03,04,05,06,08,16; RS485 Communications Module must be fitted into Option Slot A. Cannot connect to both configuration port and RS485 port at the same time.

⚠ It is strongly recommended that applications incorporate a high or low limit protective device (P6700, P4700 or P8700), which will shut down the equipment at a pre-set process condition in order to prevent possible damage to property or products. — Starkest reads only; we never write a control register.

bench facts as documented (unverified)
terminalsScrew type (combination head)
isolationReinforced safety isolation from inputs and outputs.
shield/groundThe shield should be grounded at one end only. The preferred grounding location is at the sensor, transmitter or transducer.
wiring notesDepth behind panel: 110mm (1/16 DIN), 100mm (1/8 & 1/4 DIN). Weight: 0.21kg maximum.
max registers/read64
broadcastsupported
sentinel valuesProcess Variable under-range = 62976, over-range = 63232, sensor break = 63488. Remote Setpoint returns 0xFFFF if RSP not fitted.
protocol notesThe number of consecutive words that can be written is limited to 1.
model register122
serial register123-125
firmware register130
identification notesProduct Revision Level is at register 129. Date of manufacture is at register 126.
FC 43 device IDnot supported
powerMains Units: 100 to 240V ±10% AC 50/60Hz 7.5VA maximum. Low Voltage Units: 20 to 48V AC 50/60Hz 7.5VA maximum, 22 to 65V DC 5W maximum.
environmentOperating: 0°C to 55°C. Storage: -20°C to 80°C. Relative Humidity: 20% to 95% non-condensing. Altitude: Up to 2000m above sea level. Pollution Degree 2, Installation Category II.
accuracyLinear DC: ±0.25% (mA @ 250 Ohm, V @ 2k Ohm). Degrades linearly to ±0.5% for increasing burden.
certificationsCE, UL, cUL, CSA, FM 3545 (for Limit Controllers), EN61326-1:2013, UL61010-1 Edition 3, EN61010-1 Version 2010, CSA 22.2 No 1010.192.
doc revision59305 Issue 10 – August 2018

generated by gemini:gemini-3.5-flash · harvested from https://www.west-cs.com/assets/Manuals/59305-10-West-Plus-Series-Full-Manual-EN.pdf (West Control Solutions); manual-faithful — the document's claims, panel risk: LOW — panel concurs, no field disagreements; proved interop-verified on 2026-06-10 · recorded 2026-06-10

The trust ladder

Each rung states what it proved and what it did not. Gray until proven; green is earned by hardware only.

Have a device that isn't here? Upload its register map — generation is free, and the connector earns its rung by being proven, not claimed.

Need it proven on your own device? Hardware verification — if it doesn't verify, you don't pay.

Building a platform? License the verified library — machine-readable maps, firmware matrix, API access.