Register description

R0: Filter register (KL5151-0021 only)

Workpiece lengths are only valid if they are longer than the lengths specified here (specified in increments).

R6: Diagnostic register

Is not used

R7: Command register

Is not used

R8: Terminal description

Register R8 contains the terminal identifier in hexadecimal coding.
KL5151-0000: 0x141F (5151_dec)
KL5151-0023: 0x141F (5151_dec)
KL5151-0050: 0x141F (5151_dec)
KL5152-0000: 0x1420 (5152_dec)

R9: Firmware version

Register R9 contains the firmware revision level of the terminal in hexadecimal coding, e.g. 0x3341. This is to be interpreted as an ASCII code:
- ASCII code 0x33 represents the digit 3
- ASCII code 0x41 represents the letter A
So the firmware version is 3A in this example.

R10: Shift register length

0x0228

R11: Number of signal channels

KL5151-0000: 0x0128 (296_dec)
KL5151-0023: 0x0150 (336_dec)
KL5151-0050: 0x0228 (552_dec)
KL5152-0000: 0x0228 (552_dec)

R12: Minimum data length

KL5151-0000: 0x2828 (10280_dec)
KL5151-0023: 0x5050 (20560_dec)
KL5151-0050: 0xA8A8 (43176_dec)
KL5152-0000: 0xA8A8 (43176_dec)

R13: Data type

R15: Alignment register

The terminal in the Bus Coupler is set to a byte limit with the bits of the alignment register.

R16: Hardware version number

R29: Terminal type - special identification

KL5151-0000: 0x0000 (0_dec)
KL5151-0023: 0x0017 (23_dec)
KL5151-0050: 0x0032 (50_dec)
KL5152-0000: 0x0000 (0_dec)

User register

The user registers of the terminal can be written by the user program in order to change the characteristics of the terminal at run-time.

R31: Code word register

If you write values into the user registers without previously having entered the user code word (0x1235) in the code word register, these values are only stored in the RAM registers, but not in the EPROM registers and are therefore lost if the terminal is restarted.
If you write values into the user registers and have previously entered the user code word (0x1235) in the code word register, these values are stored in the RAM registers and in the EPROM registers and are therefore retained if the terminal is restarted.

The code word is reset if the terminal is restarted.

R32: Feature register (KL5151-0000, KL5151-0050, KL5152-0000)

The feature register specifies a variety of properties for the terminal.

Bit	Feature	Value	Explanation	Default
R32.15	OperationMode	0_bin	Encoder interface	0_bin
R32.15	OperationMode	1_bin	One channel counter (32-bit up/down)	0_bin
R32.14	-	reserved		0_bin
...	...	...		...
R32.8	-	reserved		0_bin
R32.7	-	reserved		KL5151-0000: 0_binKL5151-0021: 0_binKL5151-0050: 1_binKL5152-0000: 1_bin
R32.6	enCompact ProcessImage	0_bin	KL5151-0050, KL5152-0000: complete process image with status and control bytes KL5151-0000: complete process image with status and control byte	KL5151-0000: 0_binKL5151-0021: 0_binKL5151-0050: 1_binKL5152-0000: 1_bin
R32.6	enCompact ProcessImage	1_bin	KL5151-0050, KL5152-0000: Compact process image without status byte but with control byte KL5151-0000: Compact process image without status byte and without control byte Useful operation of the KL5151-0000 with compact process image is not possible, since the control byte is required for the control of the counter and the latch!
R32.5	enPosGateLock	0_bin	A positive level at the gate input does not lock the counter.	0_bin
R32.5	enPosGateLock	1_bin	A positive level at the gate input locks the counter.	0_bin
R32.4	enNegGateLock	0_bin	A negative level at the gate input does not lock the counter.	0_bin
R32.4	enNegGateLock	1_bin	A negative level at the gate input locks the counter.	0_bin
R32.3	-	reserved		0_bin
...	...	...		...
R32.0	-	reserved		0_bin

	Operation of KL5152-0000 (KL5151-0050) as one channel counter Because for operation of KL5152-0000 (KL5151-0050) as a counter the A2 connector is used to enable the counter (gate), the operation as a two channel counter is not possible.

R32: Feature register (KL5151-0021)

The feature register specifies a variety of properties for the terminal.

Bit	Feature	Value	Explanation	Default
R32.15	-	reserved		0_bin
R32.14	B_MES_INV	0_bin	determine the positive edge first, then the negative	0_bin
R32.14	B_MES_INV	1_bin	carry out an inverted measurement: i.e. determine the negative edge first, then the positive	0_bin
R32.13	-	reserved		0_bin
...	...	...		...
R32.0	-	reserved		0_bin

R35: Filter default (KL5151-0021 only)

The value stored here is entered after a reset of the terminal in register R0 (specified in increments).