R&S QAR Series, User Manual

Page: 85 / 96

Remote Control - OPC
R&S
®
QAR
85 User Manual 1178.7200.02 ─ 04
Table 7-4: To PLC - Bumper measurements variables
Variable name Type Description
Error_Code Integer Error code.
Normalize_Required Bool True if normalization is required.
Process_Time_Sec Float Elapsed time in seconds for analyzing the current mea-
surement.
BumperMeasurement.Attenua-
tion_Mean Float Current measurement attenuation mean value
BumperMeasurement.Attenua-
tion_Std_Dev Float Current measurement attenuation mean value
BumperMeasurement.Timestamp String Current measurement timestamp
BumperMeasurement.Unit String Current measurement units (i.e. "dB")
BumperMeasurement.Error_Flag Bool True if measurement results are invalid
State.Initializing Bool True if the R&S QAR device is initializing
State.Malfunction Bool True if the R&S QAR failed the diagnostics test
State.Processing Bool True if the R&S QAR is analyzing a measurement
State.Ready_ToMeasure Bool True if the R&S QAR is ready for a measurement
State.Results_Ready Bool True if R&S QAR measurement results (BumperMea-
surement.*) can be read by the PLC.
7.1.3 Variables Data Types
The following table displays the number of bits required for each data type.
Table 7-5: Variables data types
Data type Number of bits
Bool 1
Float 32
Double 64
Integer 32
All variables with data type "String" are represented by a byte array containing the
string data (.DATA) and the number of characters in the string (.LEN). For example, if
variable V has type "String", it is represented as
V.DATA /V.LEN
. The OPC variable
V.DATA
is a byte array and
V.LEN
is a 32 Bit Integer.
The following table displays the maximum length of the string variables.
OPC Variables