Beckhoff KL4414, Документация, Страница: 39 / 45

Access from the user program
KL4414, KL4418, KL4424, KL4428 39 Version: 3.0.0
R13: data structure (data type register)
Data type register Meaning
0x00 Terminal with no valid data type
0x01 Byte array
0x02 Structure: 1 byte, n bytes
0x03 Word array
0x04 Structure: 1 byte, n words
0x05 Double word array
0x06 Structure 1 byte n double words
0x07 Structure 1 byte 1 double word
0x08 Structure 1 byte 1 double word
0x11 Byte array with variable logical channel length
0x12 Structure 1 byte, n bytes with variable logical channel length (e.g. 60xx)
0x13 Word array with variable logical channel length
0x14 Structure 1 byte, n words with variable logical channel length
0x15x Double word array with variable logical channel length
0x16 Structure 1 byte, n double words with variable logical channel length
R15: alignment register
Via the alignment register bits, the Bus Coupler arranges the address range of an analog terminal such that
it starts at a byte boundary.
R16: hardware version number
Register R16 contains the hardware version of the terminal; this value cannot be changed.
R17: hardware compensation - offset (B
a
)
This register is used for the offset compensation of the terminal (see equation 1.1). Register value (16 bit
signed integer). Default: 0x0001 (1
dec
)
R18: hardware compensation - gain (A
a
)
This register is used for the gain compensation of the terminal (see equation 1.1). Register value (16 bit
unsigned integer x 2
-12
). Default: typical 0x0E99 (3737
dec
)
R19: manufacturer scaling - offset (B
h
)
This register contains the offset for the manufacturer scaling (see equation 1.3). Register value (16 bit signed
integer). Default: 0x0000 (0
dec
)
Manufacturer scaling can be enabled via bit R32.1 [
}
40] of the feature register.
R20: manufacturer scaling - gain (A
h
)
This register contains the gain for manufacturer scaling (see equation 1.3). Register value (16 bit unsigned
integer x 2
-8
). Default: typical 0x0020 (32
dec
)
Manufacturer scaling can be enabled via bit R32.1 [
}
40] of the feature register.
DR21: manufacturer switch-on value
The terminal applies the manufacturer switch-on value to its output after a system reset or a watchdog timer
overflow (terminal has received no process data for 100 ms). Register value (16 bit signed integer).
R31: code word register
• If you write values into the user registers without first entering the user code word (0x1235) into the
code word register, the terminal will not accept the supplied data.