D300529 0115 - BL67 I/O modules 15-1
15 Appendix
15.1 Nominal current consumption and power loss of the modules ........................................................ 2
15.1.1 Nominal current from module bus (5 VDC) I
MB
..........................................................................................................................2
15.1.2 Nominal current from supply terminal (field) I
L
........................................................................................................................4
15.1.3 Maximum power loss of the modules ..........................................................................................................................................6
15.2 Analog value representation (analog input modules)...................................................................... 8
15.2.1 Equations for 16 bit representation............................................................................................................................................ 10
– Current values from 0 to 20 mA............................................................................................................................................... 10
– Current values from 4 to 20 mA............................................................................................................................................... 10
– Temperature- and resistance values (BL67-2AI-PT).......................................................................................................... 10
– Example of the conversion of negative numerical value ............................................................................................... 10
– Temperature- and voltage values (BL67-2AI-TC)............................................................................................................... 13
– Voltage values from 0 to 10 V DC............................................................................................................................................ 15
– Voltage values from -10 to 10 V DC........................................................................................................................................ 15
15.2.2 Equations for 12 bit representation ........................................................................................................................................... 16
– Current values from 0 to 20 mA............................................................................................................................................... 16
– Current values from 4 to 20 mA............................................................................................................................................... 16
– Temperature- and resistance values (BL67-2AI-PT).......................................................................................................... 17
– Temperature- and voltage values (BL67-2AI-TC)............................................................................................................... 18
– Voltage values from 0 to 10 V DC............................................................................................................................................ 20
– Voltage values from -10 to 10 V DC........................................................................................................................................ 20
15.3 Analog value representation (analog output modules) ................................................................. 22
15.3.1 Resolution of analog value representations............................................................................................................................ 22
15.3.2 Equations for 16 bit representation............................................................................................................................................ 22
– Current values from 0 to 20 mA............................................................................................................................................... 22
– Current values from 4 to 20 mA............................................................................................................................................... 22
– Voltage values from 0 to 10 V DC............................................................................................................................................ 22
– Voltage values from -10 to 10 V DC........................................................................................................................................ 22
– Conversion of the decimal values into hexadecimal/ binary values .......................................................................... 23
15.3.3 Equations for 12 bit representation............................................................................................................................................ 24
– Current values from 0 to 20 mA............................................................................................................................................... 24
– Current values from 4 to 20 mA............................................................................................................................................... 25
– Voltage values from 0 to 10 V DC............................................................................................................................................ 25
– Voltage values from -10 to 10 VDC......................................................................................................................................... 25
– Conversion of the decimal values into hexadecimal/ binary values .......................................................................... 26
15.4 Ident codes of the BL67-modules ................................................................................................... 28
15.5 Cross reference list parameters ...................................................................................................... 30