Table of Contents
5
TGH1361en/11.2009
5.8 Menu LANGUAGE ........................................................................... 49
5.8.1 Setting the national language .......................................................................... 49
5.8.2 Diagram Language ............................................................................................... 49
5.9 Menu SERVICE ......................................................................................................... 50
5.10 Parameterization via Internet ........................................................................... 50
6. Serial interfaces ..................................................................................... 51
6.1 RS485 interface with IsoData protocol (IRDH275) ..................................... 51
6.2 RS485 interface with BMS protocol (IRDH275B) ......................................... 53
6.3 Topology RS485 network (IRDH275B) ............................................................ 54
6.3.1 Correct arrangement ............................................................................................ 54
6.3.2 Wrong arrangement ............................................................................................. 54
6.3.3 Wiring ......................................................................................................................... 54
6.4 BMS protocol (IRDH275B) ................................................................................... 55
6.4.1 BMS Master .............................................................................................................. 55
6.4.2 BMS Slave ................................................................................................................. 56
6.4.3 Commissioning of an RS485 network with BMS protocol ...................... 57
7. Technical data IRDH275(B) .................................................................. 59
7.1 Data in tabular form ............................................................................................. 59
7.2 Standards and approvals .................................................................................... 62
7.3 Characteristic curves ............................................................................................ 63
7.4 Ordering details ..................................................................................................... 70
7.4.1 A-ISOMETER® ........................................................................................................... 70
7.4.2 Coupling devices ................................................................................................... 71
7.4.3 Measuring instruments ....................................................................................... 71
7.4.4 Label for modified versions ............................................................................... 71