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RS232 Control Commands

RS232 Control Commands

Product catalog summary

Overview: This document provides communication commands for serial controlling of various SFU models using RS232 interface. It includes specifications for interface settings, command formats, and internal variable addresses.

Interface Settings:

Models SFU0051, SFU0151, SFU0152, SFU0154, SFU0156, SFU0200, SFU0300, SFU0303: RS232 Interface at 115kB, 8 data bits, no parity, 1 stop bit.
Models SFU0102, SFU0202, SFU0302: RS232 Interface at 9.6kB, 8 data bits, no parity, 1 stop bit.

1-Byte Commands:

Start: Transmit 0x24, Receive 0xE4h with rpm bytes.
Stop: Transmit 0x25, Receive 0xE5h with rpm bytes.
Request Duty RPM: Transmit 0x41, Receive 0xC1 with duty rpm bytes, multiply by 10 for real value.
Request Actual RPM: Transmit 0x42, Receive 0xC2 with actual rpm bytes, multiply by 10 for real value.
Request Spindle RPM: Transmit 0x43, Receive 0xC3 with spindle rpm bytes, multiply by 10 for real value.
Request Converter Status: Transmit 0x60, Receive 0xE0h with status word bytes.

Status Word Bits:

Bits indicate various statuses such as Start/Stop, Remote Control, Real RPM reached, Undervoltage, Overvoltage, Error RS232 Interface, etc.

Attention: Ensure the status word is requested after the "Start" command to prevent automatic spindle stop after 4 seconds.

3-Byte Commands:

Set Duty RPM: Transmit 0x01 with divided rpm value, Receive 0xC1.
Set Datapointer: Transmit 0x0C with pointer bytes, Receive 0xCC with value bytes.
Set Rotation Direction: Clockwise: Transmit 0x0A, Counterclockwise: Transmit 0x0B, Receive respective values.

Internal Variables:

Addresses and multipliers for variables like Load Current, Load Percent, Temperature, Minimum/Maximum Speed, Operating Hours, etc.

Contact Information:

BMR GmbH, Walpersdorfer Str. 38, D 91126 Schwabach, Tel.: +49 (0)9122 63148-0, Email: [email protected]

Note: Subject to technical alterations as of 07.10.2013.

Catalog excerpts

Documentation:Communication commands for serial controlling Valid for the following types SFU0051 SFU0151, SFU0152, SFU0154, SFU0156 SFU0200 SFU0300 SFU0303 RS232 Interface Setting: 115kB, 8 data, no parity, 1 stop bit SFU0102, SFU0202 SFU0302 RS232 Interface Setting: 9,6kB, 8 data, no parity, 1 stop bit

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Communication commands for serial controlling 1-Byte-Commands in HEX Format: _________________________________________________________________________ Command: Start Transmit: 0xE4h 0xll Low Byte rpm 0xhh High Byte rpm _________________________________________________________________________ Command: Stop Transmit: 0xE5h 0xll Low Byte rpm 0xhh High Byte rpm _________________________________________________________________________ Request: duty rpm (*10) Send set value of duty speed Transmit: Low Byte duty rpm High Byte duty rpm To get the real value, the received value has to be multiplied with...

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SFU Communication commands for serial controlling GmbH Request: converter status 0xll Low Byte Status Word 0xhh High Byte Status Word Bits of the status word: reserved Status Start/Stop Status reserved Status Remote control on Status Real rpm reached (In case of using a hall sensor: real rpm = set value rpm Status Duty rpm reached (= Set Value of Duty Speed) Status Spindle Stop Status Undervoltage Status Overvoltage Status Varioload reached Status Error RS232 Interface Status Spindle not ready Status Converter not ready Status Overload Status Excess Temperature Converter Status Excess...

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Communication commands for serial controlling 3-Byte-Commands in HEX Format: _________________________________________________________________________ Command: Set duty rpm (= desired value / 10) Transmit: Low Byte duty rpm High Byte duty rpm Low Byte High Byte The desired set value has to be divided by 10 and then send to the converter for example, set rpm to 20.000: 20.000/10 = 2.000d = 07D0h => send "01 D0 07" _________________________________________________________________________ Command: Set Datapointer for reading a data variable Transmit: Low Byte Pointer High Byte Pointer Low Byte Value...

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Communication commands for serial controlling List of the internal variables Variable

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Communication commands for serial controlling e-mail: [email protected] Internet: www.bmr-gmbh.de Subject to technical alterations. 07. 10. 2013

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