Beckhoff KL301 Series, Документация

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Access from the user program
KL301x, KL302x 38 Version: 4.1
Feature bit no. Description of the operation mode
Bit 0 1
User scaling ( R33, R34 [ } 38] ) active [0]
Bit 1 1
Manufacturer scaling ( R19, R20 [
}
37] ) active [1]
Bit 2 1 Watchdog timer active [1]
In the delivery state, the watchdog timer is switched on.
Bit 3 1 Sign / amount representation [0]
Sign / amount representation is active instead of two's-complement
representation (-1 = 0x8001).
Bit 4 1 Siemens output format [0]
This bit is used for inserting status information on the lowest 3 bits (see
below).
Bits 5 to 7 - Reserved, don't change
Bit 8 1 Over range Protection [1]
If values exceed or fall below the limits of the registers OVRL (
R21 [
}
37] )
and UNRL ( R22 [
}
37] ), the status bits are set and the measuring range is
restricted accordingly.
Bit 9 1 Limit value 1 active [0]
The process data are compared with limit value 1 (
R35 [
}
38] ), and
appropriate status bits are set.
Bit 10 1 Limit value 2 active [0]
The process data are compared with limit value 2 (
R36 [
}
39] ), and
appropriate status bits are set.
Bit 11 1 Filter1 active [0]
For filter properties, see
R37 [
}
39]
Bits 12 to 15 - Reserved, don't change
If the Siemens output format is selected, the lowest three bits are used for status evaluation. The process
data is represented in bits 15 to 3, with bit 15 representing the sign bit. Scaling of the measured value
according to the Siemens standard has to be done via user scaling (
R33, R34 [
}
38] ).
KL3011 and KL3012
Measured value Bits 15 to 3 Bit 2
X Bit1
Error Bit 0
Overflow
Measured value > 20 mA 0 0 1
Measured value < 20 mA Process data 0 0 0
KL3021 and KL3022
Measured value Bits 15 to 3 Bit 2
X Bit1
Error Bit 0
Overflow
Measured value > 20 mA 0 0 1
4 mA < measured value <
20 mA Process data 0 0 0
Measured value < 4 mA Process data 0 1 1
• R33: User scaling - offset (B_w)
16 bit signed integer
This register contains the offset of the user straight-line equation (
Eq. 1.4 [
}
11] ). The straight-line
equation is activated via register R32 [
}
38] .
• R34: User scaling - gain (Aw_)
16 bit signed integer*2
-8
This register contains the scale factor of the user straight-line equation ( Eq. 1.4 [
}
11] ). The straight-line
equation is activated via register R32 [
}
38] .
• R35: Limit value 1 (Y_2)
If the process data are outside this threshold, the appropriate bits are set in the status byte.