A-2 Field Control Genius® Bus Interface Unit User’s Manual October 1999 GFK-0825F
A
Scaling Values for 1mV or 1µA Engineering Units: BIU Version 1.3
For many applications, the engineering units are either millivolts or microAmps. These units are
easy to scale. Simply use the table below to find scaling values that are appropriate for the
channel's config ured range.

Analog Current Input Module

Range
Selected To measure
this current Ent er this engineering
units value Internal Units
(microAmps)
4 to 20mA 4 mA Low 4,000 Low 4,000
20 mA High +20,000 High +20,000
0 to 20 mA 0 mA Low 0 Low 0
20 mA High +20,000 High +20,000

Analog Current Output Module

Range
Selected To output this
current Enter this engineering
units value Internal Units
(microAmps)
4 to 20mA 4 mA Low 4,000 Low 0
20 mA High +20,000 High +20,000
0 to 20 mA* 0 mA Low 0 Low 0
20 mA High +20,000 High +20,000

Analog Current Source Output Module (IC670ALG320) in Voltage Mode

Range
Selected To output this
voltage Enter this engineering
units value Internal Units
(microAmps)
4 to 20mA 0 volts Low 0 Low 0
+10 volts High +10,000 High +20,000
0 to 20 mA* 0 volts Low 0 Low 0
+12.5 volts High +12,500 High +20,000
*
Connect the output load between Volt (V) and Return (RET) for the
channel being used. For 0 to +12.5 voltage, place a jumper between RET
and JMP on the terminal block.

Horner Analog Voltage Input Module (HE670ADC810)

Range
Selected To measure
this voltage Enter this engineering
units value Internal Units
(microAmps)
0 to 10 volts 0 volts Low 0 Low 0
+10 volts High +10,000 High +10,000
-10 to +10 volts -10 volts Low -10,000 Low -10,000
+10 volts High +10,000 High +10,000