Bender ISOMETER IRDH375 User Manual

68
IRDH375_D00124_05_M_XXEN/01.2020
7. Serial interfaces
The ISOMETER®s IRDH375 and IRDH375B have differently designed serial in-
terfaces.
7.1 RS-485 interface with IsoData protocol (IRDH375)
Data transmission is continuously carried out and can neither be interrupted
by the data slave station nor be influenced in any other way. This protocol
cannot be used in combination with the BMS protocol.
For data evaluation via PC or Laptop, the terminal software "IsoData" and an
interface converter of the ASCII RS-485/RS-232 type is required. To obtain the
software, please contact Bender Service. Contact details are found on page 8.
Interface data:
 RS-485 interface galvanically isolated from the device electronics
 Connection to terminal A and B
 Maximum cable length 1,200 m
 Transmission protocol 9,600 baud - 1 start bit - 1 stop bit - 8 data bit
 After each valid measurement, the following data block is provided:
IRDH375
- RS-485 and IsoData protocol
- not galvanically isolated
- ASCII, unidirectional
IRDH375B
- RS-485 and BMS protocol
- galvanically isolated
- ASCII, bidirectional

Bender ISOMETER IRDH375 Specifications

General

Brand	Bender
Model	ISOMETER IRDH375
Category	Measuring Instruments
Language	English