MODBUS LITE V5.01 parameter specification
Table Of Contents
- 1 Frame protocol
 - 2 Holding Register
- 2.1 Overview
 - 2.2 Reset
 - 2.3 Default set value
 - 2.4 Password
 - 2.5 Control default setting
 - 2.6 Control customer setting
 - 2.7 Operating hours counter
 - 2.8 Operating minutes counter
 - 2.9 Fan address
 - 2.10 Source set value
 - 2.11 Preferred running direction
 - 2.12 Save set value
 - 2.13 Internal parameter set
 - 2.14 Control mode
 - 2.15 Control parameters
 - 2.16 Maximum modulation level
 - 2.17 Minimum modulation level
 - 2.18 Enable motor stop
 - 2.19 Set value (EEPROM)
 - 2.20 Starting modulation level
 - 2.21 Maximum permissible modulation level
 - 2.22 Minimum permissible modulation level
 - 2.23 Maximum speed
 - 2.24 Maximum permissible speed
 - 2.25 Ramp-up curve / ramp-down curve
 - 2.26 Limit speed
 - 2.27 Potentiometer characteristic
 - 2.28 Control limitation
 - 2.29 Maximum power
 - 2.30 Maximum coil current
 - 2.31 Limiting speed for running monitor
 - 2.32 Interface settings
 - 2.33 Shedding function
 - 2.34 Relay dropout delay
 - 2.35 Fail safe function on/off
 - 2.36 Fail safe function set value
 - 2.37 Fail safe function time lag
 - 2.38 Fail safe function running direction
 - 2.39 Potentiometer characteristic limiting value for cable break
 - 2.40 Sensor
 - 2.41 Customer data
 - 2.42 Error history
 - 2.43 Reference value of DC-link voltage
 - 2.44 Reference value of DC-link current
 - 2.45 Production data
 
 - 3 Input Register
- 3.1 Overview
 - 3.2 Identification
 - 3.3 Maximum number of bytes
 - 3.4 Software name of bus controller
 - 3.5 Software version of bus controller
 - 3.6 Software name of commutation controller
 - 3.7 Software version of commutation controller
 - 3.8 Actual speed
 - 3.9 Motor status
 - 3.10 Warning
 - 3.11 DC-link voltage
 - 3.12 DC-link current
 - 3.13 Module temperature
 - 3.14 Motor temperature
 - 3.15 Interior electronics temperature
 - 3.16 Current direction of rotation
 - 3.17 Current modulation level
 - 3.18 Current set value
 - 3.19 Sensor actual values
 - 3.20 Current parameter set
 - 3.21 Current power
 
 
MODBUS parameters "ebm-papst series 84 / 112 / 150 / 200" 
_______________________________________________________________________________________ 
ebm-papst Mulfingen GmbH & Co. KG 
Bachmühle 2 ·74673 Mulfingen, Germany ·Phone: +49 (0) 7938/81-0 ·Fax: +49 (0) 7938/81-110 ·www.ebmpapst.com ·info1@de.ebmpapst.com 
DocNo.: 634505DocNo.: 446144DocNo.:358982DocNo.:322523DocNo.:309753DocNo.:303997DocNo.:276241DocNo.:256078DocNo.:196392 ·Template: 2 dated 6 October 2003 ·File: ext001157859.doc ·Last printed 10/03/2015 15:13:00 
·Page 48 of 70 
Form 1003 
2.32  Interface settings 
2.32.1  Transfer rate 
Address    : D149 
Write authorisation  : ebm-papst, customer 
Encoding: 
Value 
Transfer rate 
0x01 
 2400 bit/sec 
0x02 
 4800 bit/sec 
0x03 
 9600 bit/sec 
0x04 
 19,200 bit/sec 
0x05 
 38,400 bit/sec 
0x06 
 57,600 bit/sec 
0x07 
115,200 bit/sec 
The MSB is of no relevance! 
The standard value 19,200 bit/sec (0x04) is recommended for the transmission rate. 
Make sure that the same transmission rate is selected for the fan as for the master (e.g. EC Control). 
Otherwise, communication with the fan will not be possible! 
If the value set by the customer (holding register D249) or the factory default setting (holding register D2C9) 
differ from the value selected here, ensure that the transmission rate is also changed after data transfer from 
the customer setting or factory default setting (see 2.5 and 2.6). No communication is then possible with the 
previous setting 
2.32.2  Parity configuration 
Address    : D14A 
Write authorisation  : ebm-papst, customer 
Encoding: 
Value 
Parity configuration 
Number of 
data bits 
Parity 
Number of 
stop bits 
0x00 
8E1 
8 
Even 
1 
0x01 
8O1 
8 
Odd 
1 
0x02 
8N2 
8 
None 
2 
0x03 
8N1 
8 
None 
1 
The MSB is of no relevance! 
The standard value 8E1 (0x00) is recommended for the parity configuration. 










