Range error

Overrange/Underrange

This functional unit monitors the measured value for exceeding or falling below the nom. FSV, for example in the measuring range "±10 V" to -10.0 V and +10.0 V.

Parameterization is not possible. The measured value is not limited.

Result

PDO AI Status

Overrange-Bit

Underrange-Bit

Range Error

The Range Error functional unit monitors the measured value according to 2 limit values (min. and max.), counts overrange/underrange and reports this as an error (error bit in the status). There is no limitation of measured values.
In the default settings, the RangeError limit values are set to negative and positive technical FSV, e.g. in the "±10 V" measuring range to LowRangeError = -10.7 V and HighRangeError = +10.7 V, exceeding the limit is then output as an error in the PDO status and LED.
Note: The limit values according to 0x80nD can be changed in the operation modes "Integer PDO, Extended Range" and "Real32 PDO"; in the operation mode "Integer PDO, Legacy Range", the limit values cannot be changed and are 0x7FFF / 32767 or -32768; the limit values according to 0x80nD are not taken into account.

Index [data type]

Designation

80nD:17 [DINT]

Low Range Error

80nD:27 [REAL32]

Low Range Error (REAL32)

80nD:18 [DINT

High Range Error

80nD:28 [REAL32]

High Range Error (REAL32)

Notice

Range error 1:

Changing the interface or IntegerScaler 0x80nD:12

When changing the interface or IntegerScaler 0x80nD:12 (Extended/Legacy Range), the limit values are reset to the default setting according to the interface!

Result

PDO AI Status

Error bit

90n0:14

Underrange Error Counter

90n0:15

Overrange Error Counter

Resetting to the default setting according to the interface is done by

Range error 2:
CoE Index FB00, DEV Command

During command execution, "Status" 255 "busy" is displayed in index FB00:02, "0" means "successfully completed".

The firmware responds to an unknown command with

Range error 3:
General parameter incompatibility reason, 0x06040043