Bauer BSM (signing meter)

Status: Vendor Confirmed · Register points: 62 · Transports: Modbus TCP, Modbus RTU

A curated ModDef profile for the Bauer BSM (signing meter). Import it as bauer.bsm or load the .moddef.yaml directly.

Connect to one over Web Serial and watch its values live in the device dashboard.

Usage

Load the profile, bind a transport, and read a point by name. The runtime applies the offset, scaling, byte order, and sentinels from the definition.

doc, _ := moddef.Load("bauer-bsm.moddef.yaml")
dev, _ := client.New(doc, "bauer-bsm", transport) // your modbus.Transport
v, _ := dev.ReadPoint(ctx, "amps_total")
fmt.Println(v)

import {Device} from '@moddef/core';
import {loadDocument} from '@moddef/core/node';

const doc = await loadDocument('bauer-bsm.moddef.yaml');
const dev = Device.create(doc, 'bauer-bsm', transport);
console.log(await dev.readPoint('amps_total'));

let doc = moddef_core::load("bauer-bsm.moddef.yaml")?;
let mut dev = Device::new(&doc, Some("bauer-bsm"), transport)?;
let v = dev.read_point("amps_total").await?;

from moddef import Device, load
from moddef.pymodbus import Options, PymodbusTransport

doc = load("bauer-bsm.moddef.yaml")
transport = await PymodbusTransport.tcp("192.168.1.50", options=Options())
dev = Device.create(doc, "bauer-bsm", transport)
print(await dev.read_point("amps_total"))

md_doc_t doc;
md_doc_init(&doc, flash_ptr, flash_len);        /* zero-copy view */

md_dev_t dev;
md_dev_init(&dev, &doc, MD_STR("bauer-bsm"), &transport);

md_value_t v;
md_dev_read(&dev, MD_STR("amps_total"), &v);

auto doc = moddef::Document::view(flash_bytes).value();   // zero-copy over flash
auto dev = moddef::Device::open(doc, "bauer-bsm", transport).value();

if (auto v = dev->read("amps_total"); v)
    std::cout << v->to_string() << '\n';

Commands

Multi-step register procedures (spec §11.7) this profile defines — write params, arm a trigger, poll for completion, then read the result. Run one with your language's command executor (RunCommand, runCommand, run_command, or md_cmd_begin/md_cmd_tick in C/C++).

`start_transaction` — Start Transaction

Create and sign the turn-on (billing start) snapshot and fetch its OCMF representation

Params

Field	Type	Required
`meta1`	STRING	yes
`meta2`	STRING
`meta3`	STRING

Results

Field	Type
`ocmf`	STRING

`stop_transaction` — Stop Transaction

Create and sign the turn-off (billing end) snapshot and fetch its OCMF representation (metadata persists from start_transaction)

Results

Field	Type
`ocmf`	STRING

Measurands

The 8 semantic quantities this device reports, each linked to the measurand catalog. Query a device by measurand instead of a raw point when you want portable code.

Base quantity	Name	Unit	Description
`voltage`	Voltage	`V`	RMS voltage; qualify with phase_ref (L1_N, L1_L2, ...)
`current`	Current	`A`	RMS current; qualify with phase_ref / direction
`frequency`	Frequency	`Hz`	Grid frequency
`active_power`	Active Power	`W`	Instantaneous real power
`reactive_power`	Reactive Power	`var`	Instantaneous reactive power
`apparent_power`	Apparent Power	`VA`	Instantaneous apparent power
`energy_active`	Active Energy	`Wh`	Cumulative active energy register
`alarm_status`	Alarm Status	`undefined`	Alarm state (enum or flag set)

Source

Profile: energy-meter/bauer-bsm/bauer-bsm.moddef.yaml
Register map: vendor documentation

Usage​

Commands​

start_transaction — Start Transaction​

stop_transaction — Stop Transaction​

Measurands​

Source​