Beckhoff KL304 Series Documentation

Access from the user program
KL304x, KL305x36 Version: 4.0
• R14: reserved
• R15: Alignment bits (RAM)
The alignment bits are used to place the analog terminal in the Bus Coupler on a byte boundary.
R16 to R30: Manufacturer parameter area (SEEROM)
The manufacturer parameters are specific for each type of terminal. They are programmed by the
manufacturer, but can also be modified by the controller. The manufacturer parameters are stored in a serial
EEPROM in the terminal, and are retained in the event of voltage drop-out.
These registers can only be altered after a code word has been set in R31 [}36].
• R17: Hardware compensation - offset (B_a)
16bit signed integer
This register is used for offset compensation of the terminal (Eq. 1.1 [}12]).
Register value approx. 0xFFXX
• R18: Hardware compensation - gain (A_a)
16bit signed integer*2-
12
This register is used for gain compensation of the terminal (Eq. 1.1 [}12]).
1 corresponds to register value 01000
Register value approx. 0x11XX
• R19: Manufacturer scaling - offset (B_h)
16bits signed integer [0x0000]
This register contains the offset of the manufacturer straight-line equation (equation 1.3 [}12]). The
straight-line equation is activated via register R32 [}37].
• R20: Manufacturer scaling - gain (A_h)
16bit signed integer*2
-10
[0x2002]
This register contains the scale factor of the manufacturer's equation of the straight line (Eq. 1.3 [}12]).
The straight-line equation is activated via register R32 [}37].
1 corresponds to register value 0x0400.
• R21: Over range limit (OVRL)
16bits signed integer in Y_a (Eq. 1.0 [}12]) [0x0FFF]
This limit value limits the maximum measuring range of the input terminal. If it is exceeded, the
associated status bit is set, and the maximum value is displayed.
• R22: Under range limit (UNRL)
16bit signed integer in Y_a (Eq. 1.0 [}12]) [0x0000]
If the actual value falls below this limit, the associated status bit is set, and the minimum value is
displayed.
• R23: ADC hardware preset
[0x0000]
Initialization of the ADC offset register.
R31 to R47: User parameter area (SEEROM)
The user parameters are specific for each type of terminal. They can be modified by the programmer. The
user parameters are stored in a serial EEPROM in the terminal, and are retained in the event of voltage
drop-out. The user area is write-protected by a code word.
Note
• R31: Code word register in RAM
The code word 0x1235 must be entered here so that parameters in the user area can be
modified. If any other value is entered into this register, the write-protection is active. When
write protection is not active, the code word is returned when the register is read. If the
write protection is active, the register contains a zero value.
• R32: Feature register
[0x1106]
This register specifies the operation modes of the terminal. Thus, forinstance, a user-specific scaling
can be activated for the analog I/Os.

Beckhoff KL304 Series Specifications

General

Brand	Beckhoff
Model	KL304 Series
Category	Touch terminals
Language	English