Product information 29/128
CytroBox, RE 51057-B/11.19, Bosch Rexroth AG
The particle concentration is measured by the sensor 6.420,
OPM II-1X-M. It is connected to port 4 of the IO link gateway via the analog IO link
converter 6.460.
If the sensor is not present, the value -999 is output. If the sensor measures an
invalid value, -999 is output as well and warning B326 is issued.
The measured value is linearly scaled from mA in ordinal numbers (OZ). The value
is defined by ISO 4406:99. The range is from 2^(x-1) to 2^(x) particles per 100ml,
whereas the value x is displayed in this parameter. The scaling can be adjusted via
the parameters P-0-1311[170] – P-0-1311[173].
The measured values for the different particle sizes are transmitted serially on
the basis of the analog value. For evaluation purposes, the start pulse is therefore
detected if the signal for the start pulse duration (P-0-1311[177]) is above the start
pulse threshold values (P-0-1311[176]). The first measured value is accepted after
the initial waiting time (P-0-1311[178]), the other values are accepted after the
cyclic waiting time (P-0-1311[179]).
Table 9: Parameters for particle concentration
Function Parameter Description Unit Bytes Decimal
points
Default
Particle concentration
P-0-1292 Average value OZ 4 2 -
P-0-1424 Actual value (S) OZ 2 0 -
P-0-1389[61] Warning OZ 4 3 16
P-0-1389[65] Error OZ 4 18
P-0-1425 Actual value (M) OZ 2 0 -
P-0-1389[62] Warning OZ 4 3 14
P-0-1389[66] Error OZ 4 3 16
P-0-1426 Actual value (L) OZ 2 0 -
P-0-1389[63] Warning OZ 4 3 12
P-0-1389[67] Error OZ 4 3 14
P-0-1427 Actual value (XL) OZ 2 0 -
P-0-1389[64] Warning OZ 4 3 10
P-0-1389[68] Error OZ 4 3 12
Standardization
P-0-1311[170] Min. OZ 4 4 0
P-0-1311[171] Max. OZ 4 4 26
P-0-1311[172] Min. mA 4 4 4
P-0-1311[173] Max. mA 4 4 20
Threshold value
P-0-1311[176] Starting signal mA 4 4 3.9
P-0-1311[177] Starting signal ms 4 4 3400
P-0-1311[178] Delay ms 4 4 3500
P-0-1311[179] Cycle ms 4 4 4000
Particle concentration
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