Schneider Electric BMXEHC0200 M340 High-Speed Counter Module 2

BMXEHC0200 two-channel high-speed counter for M340 racks

The BMXEHC0200 is a Schneider Electric product listed in the datasheet as: counter module, Modicon M340, high speed, 2 channels. The BMXEHC0200 is a counter module that reads fast pulse signals such as encoder or proximity-sensor pulses without loading the processor scan. It has two counting channels at up to 60 kHz and on-board outputs that react to counter values. Seven Star LLC supplies the BMXEHC0200 in Oman and the GCC as an independent supplier based in Muscat.

Reading the reference: BMX is the M340 and X80 hardware, EHC the high-speed counter module type and 0200 the two-channel model. The datasheet table gives the number of inputs and outputs per module.

Technical specifications of the BMXEHC0200

Counter functions, inputs and outputs

Channels: 2. Maximum counting frequency: 60000 Hz. Inputs: 6. Input types: 3 auxiliary input; 3 high speed. Counter functions: Loop (modulo) counting; Width modulation; Down counting; Measure time periods; Ratio count; Count events; 32-bit counter counting. Outputs: 2. Cycle time: 1 ms.

The module counts in the rack independently of the processor scan, so the program reads a value that is already accumulated and can start or stop counting using enable inputs. Functions like modulo counting help in rotary applications.

Using the BMXEHC0200 with encoders, sensors and the processor

Wire the pulse sources to the module inputs (24 V DC type 3 inputs, 2-wire or 3-wire proximity sensors) and the two reflex outputs to local actuators if a fast reaction is needed. The module needs a processor that accepts application-specific modules, as the processor capacity table lists.

For speed measurement, filter the signal and configure the time base; for position, check the counting direction and the reference input.

Selection checklist for the BMXEHC0200

• Maximum pulse frequency vs the 60 kHz limit.
• Sensor type: PNP/NPN or encoder lines.
• Counter function: simple, modulo, frequency measurement.
• Reflex output needs and current.
• Number of application-specific modules the processor supports.
• Cable length and shield.

Wiring, configuration and troubleshooting

Wire the inputs to the front connector, verify the sensor supply, and select the counting mode in the engineering software. Test with a pulse generator and read the counter value in the animation table.

If counts drift, look at shielding, ground, sensor output type and input threshold. Check that the 24 V sensor supply is within the limits listed.

Typical applications of the BMXEHC0200 in Oman and the GCC

Typical use is on conveyors, metering skids, packaging lines, level or flow pulse counting and rotating equipment speed measurement. Oil and gas package units often use similar modules for flow meters with pulse outputs.

Dimensions, environment and approvals of the BMXEHC0200

The BMXEHC0200 weighs 0.112 kg. Mounting, derating and enclosure choices follow the environmental data below, which should be compared with the actual panel temperature and the dust and humidity of the site in Oman and the GCC.

Ambient temperature limits in the datasheet: 0 to 60 °C. Relative humidity: 10 to 95 % without condensation. Ingress protection: IP20.

Counter modules rarely fail outright; the more usual problem is an unreliable signal. Check that the sensor output type matches the input configuration, that shields are grounded at one end only and that cables are routed away from drive output cables, which are the biggest source of false pulses. For flow-metering applications, confirm the meter pulse width against the filter setting of the input, and test with a pulse generator at the maximum expected frequency before putting the loop into service. If the count is used for billing or custody-type decisions, add a cross-check against a second measurement so that drift can be detected early.

Information to send with an RFQ for the BMXEHC0200

• Full reference and quantity required
• Existing equipment, panel or rack it must fit
• Supply voltage, load or signal details of the application
• Required delivery location and timing
• Whether a spare, a replacement or a new installation

Documents and quotation

A datasheet for this product is attached on this page. It lists the electrical, mechanical and environmental data summarised above.

Send us the part number, quantity and application and we will confirm availability and a quotation. Seven Star LLC is an independent supplier in Muscat and does not represent itself as an official channel of the manufacturer.