Current measurement "AI_1xC" measuring ranges

1. Set the measuring range via index 0x80AD:11 “Input type”
(see table “Measuring ranges and scaling type”).

2. Select the scaling type via index 0x80AD:12 “Scaler”:

Scaling type

0x80AD:12 "Scaler"	Name	Resolution 1 LSB	Meaning
0x0000 (0_dec) (pre-set)	Extended Range		This type of scaling allows the nominal measuring range to be exceeded or undershot by approx. 7 %. Technical measuring range: The technically usable range is -107 % to +107 % of the respective full scale value. Nominal measuring range: For the “Extended Range”, the PDO value ±30518 (0x7736) is defined as ±100 % for 16 bits.
0x0003 (3_dec)	Legacy Range		This scaling type shows the range from -100 % to +100 %. +100 % corresponds to +32767 -100 % corresponds to -32768 Nominal measuring range = Technical measuring range

0x80AD:12
"Scaler"

Name

Resolution 1 LSB

Meaning

0x0000 (0_dec)

(pre-set)

Extended Range

Current measurement "AI_1xC" measuring ranges 1:

This type of scaling allows the nominal measuring range to be exceeded or undershot by approx. 7 %.

Technical measuring range: The technically usable range is -107 % to +107 % of the respective full scale value.
Nominal measuring range: For the “Extended Range”, the PDO value ±30518 (0x7736) is defined as ±100 % for 16 bits.

0x0003 (3_dec)

Legacy Range

Current measurement "AI_1xC" measuring ranges 2:

This scaling type shows the range from -100 % to +100 %.

Nominal measuring range = Technical measuring range

0x80AD:11 “Input type”	Current measuring ranges
0x80AD:11 “Input type”	Extended Range 0x80AD:12 "Scaler" = 0x0000 (0_dec)	Legacy Range 0x80AD:12 "Scaler" = 0x0003 (3_dec)	Full scale value (FSV)
0x0011 (17_dec)	-21.474 … +21.474 mA	-20 … +20 mA	20 mA
0x0012 (18_dec)	0 … +21.474 mA	0 … +20 mA	20 mA
0x0013 (19_dec)	0 … +21.474 mA	4 … +20 mA	20 mA

The following status bits indicate that the measuring range has been exceeded:

Underrange / Overrange: the corresponding bits are set if the measured value is outside the nominal measuring range.
Range Error: The error thresholds for the error bit and the error LED can be set in "Extended Range" mode via parameter 0x80AD:17 "Low Range Error" and parameter 0x80AD:18 "High Range Error". The "Extended Range" limit values are pre-set.

A complete description of these status bits can be found in the chapter Measuring range monitoring.