Register Description
KL304x and KL305x
11
User parameters
R32: Feature register
[0x1106]
The feature register specifies the operating modes of the terminal.
Feature bit
no.
Description of the operating mode
Bit 0
1
User scaling (R33, R34) active [0]
Bit 1
1
Manufacturer scaling (R19, R20) 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).
Bit 7 to 5
-
reserved, do not change
Bit 8
1
Over range Protection [1]
If values exceed or fall below the limits of the registers
OVRL (R21) and UNRL (R22), 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),
and appropriate status bits are set.
Bit 10
1
Limit value 2 active [0]
The process data are compared with limit value 1 (R36),
and appropriate status bits are set.
Bit 11
1
Filter 1 active [0], (not possible for KL3044 and KL3054)
filter characteristics see R37
Bit 12
1
Break active [1], do not change
Bit 15 to 13
-
reserved, do not change
If the Siemens output format is selected, the lowest three bits are used for
status evaluation. The process data is represented in bits 3 to 15, with bit
15 representing the sign bit. Scaling of the measurement reading according
to the Siemens standard has to be done via user scaling (R33, R34).
KL3041, KL3042 and KL3044
Bit
Measured value
Bit 15 to 3
Bit 2
X
Bit 1
Error
Bit 0
Overflow
Measured value > 20 mA
0
0
1
Measured value < 20 mA
Process data
0
0
0
KL3051, KL3052 and KL3054
Bit
Measured value
Bit 15 to 3
Bit 2
X
Bit 1
Wire breakage
Bit 0
Overflow/Underflow
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
