verified connector library

Vogtlin red-y smart mass flow meter/controller

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 confirmed at the hardware-verified rung and at no rung below it.

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
gas_flow0F32BE1mln/min
temperature2F32BE1°C
totaliser4F32BE1mln
setpoint_gas_flow6F32BE1mln/min
measured_value_analog_input8F32BE1V or mA
valve_control_signal10F32BE1%
alarm12U161
hardware_error13U161
controller_mode14U161
measuring_range20F32BE1mln/min
serial_number_hardware30U32BE1
totaliser_scaling_factor16454F32BE1
zero_point_suppression16460F32BE1mln/min
backflow_detection16466F32BE1

link settings as documented (unverified): RTU; default 9600 8N2; unit ID 247; FC 03,06,08,16; Address range: 01..247. Broadcast to all instruments: 00 => no answer from the instruments.

bench facts as documented (unverified)
terminals9-pin sub-D connector (male)
A/B polarityPin 6: Tx+ RS485 (Y), Pin 7: Tx- RS485 (Z), Pin 8: Rx- RS485 (B), Pin 9: Rx+ RS485 (A)
terminationBus Terminator Module (BTM 328-2139) available
connector9-pin sub-D connector (male)
isolationThe RS-485/RS-232 converter should be galvanically isolated.
shield/groundUse separate cables for signal ground pin 1 and power supply ground pin 2 to avoid interference problems.
inter-frame delay4 ms
broadcastsupported
protocol notesThe number of bytes to be transmitted is limited to 20 because of the limited storage capacity of the RAM.
model register0x0023..0x0026
serial register0x001e..0x001f
firmware register0x0021
power+ 24 Vdc -5% / +10%, Massflow meter max. 100 mA, Massflow controller max. 250 mA
environmentOperating temperature 0 – 50°C, Ingress protection IP-50
accuracyStandard +/- 1,5% of full scale, Hi-Performance +/- 0,3% of full scale, +/- 0,5% of reading
certificationsCE approved
doc revisionsmart_E4_1
firmware applicabilityThis manual is valid for instruments with a serial number up to 109 999

⚠ disputed: totaliser_scaling_factor @ 16454 — disputed by Vögtlin red-y smart series manual (smart_digi_com_E1_5) which maps Totaliser unit (Einheit Totalisator) to 0x4046..0x4047 (decimal 16454..16455), not a scaling factor

⚠ disputed: zero_point_suppression @ 16460 — disputed by Vögtlin red-y smart series manual (smart_digi_com_E1_5) which maps Zero point suppression (Nullpunktunterdrückung) to 0x4048..0x404b (decimal 16456..16459), while 0x404c..0x404d (decimal 16460..16461) is Reset hardware error

⚠ disputed: backflow_detection @ 16466 — disputed by Vögtlin red-y smart series manual (smart_digi_com_E1_5) which maps Backflow detection (Rückfluss-Detektion) to 0x4050 (decimal 16464), while 0x4052..0x4053 (decimal 16466..16467) is Signal type analog output

field reports — community-sourced, unverified (checked 2026-06-11)
  • confirmed: comms defaults — confirmed by Vögtlin red-y smart series manual (smart_digi_com_E1_5) stating default baud rate 9600, default unit ID 247, and 2 stop bits with no parity
  • confirmed: physical connector and polarity — confirmed by Vögtlin red-y smart series manual (smart_E4_1) specifying 9-pin sub-D connector (male) and pinout details (Pin 6: Tx+, Pin 7: Tx-, Pin 8: Rx-, Pin 9: Rx+)
  • confirmed: identification registers — confirmed by Vögtlin red-y smart series manual (smart_digi_com_E1_5) listing serial number at 0x001e..0x001f, software version at 0x0021, and type code 1 at 0x0023..0x0026
  • confirmed: basic register map — confirmed by Vögtlin red-y smart series manual (smart_digi_com_E1_5) listing Gas flow @ 0x0000, Temperature @ 0x0002, Totaliser @ 0x0004, Setpoint gas flow @ 0x0006, and Analog input @ 0x0008

The trust ladder

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

If your device isn't here, upload its register map. Generation is free, and the connector keeps the rung it earns under testing.

To prove a connector against your own device, order hardware verification. If it doesn't verify, you don't pay.

Platform builders can license the verified library: machine-readable maps, the firmware matrix, API access.