Beckhoff KL2502 Manuel d'utilisateur télécharger pdf (Page 12)

Terminal configuration

10 KL2502, KL2512

Type registers

3.2.1.3 R8 to R15 Registers in the terminal’s internal ROM

The type and system parameters are programmed permanently by the

manufacturer and can only be read by the user but cannot be modified.

R8: Terminal type

The terminal type in register R8 is needed to identify the terminal.

R9: Firmware version X.y

The firmware version can be read as an ASCII character string.

R10: Data length

R10 contains the number of multiplexed shift registers and their length in

bits.

The bus coupler sees this structure.

R11: Signal channels

In comparison with R10, the number of logically existing channels is

located here. For example, one physically existing shift register may

consist of several signal channels.

R12: Minimum data length

The respective byte contains the minimum data length of a channel to be

transferred. If the MSB is set, then the control/status byte is not necessarily

needed for the function of the terminal and, with appropriate configuration

of the coupler, is not transferred to the control system.

R13: Data type register

Data type register

0x00

Terminal without valid data type

0x01

Byte array

0x02

1 byte n bytes structure

0x03

Word array

0x04

1 byte n words structure

0x05

Double word array

0x06

1 byte n double words structure

0x07

1 byte 1 double word structure

0x08

1 byte 1 double word structure

0x11

Byte-array with a variable logical channel length

0x12 1 byte n bytes structure with a variable logical channel

length (eg 60xx)

0x13

Word-array with a variable logical channel length

0x14 1 byte n words structure with a variable logical channel

length

0x15

Double word array with a variable logical channel length

0x16 1 byte n double words structure with a variable logical

channel length

3.2.1.4 R14: not used

3.2.1.5 R15: Alignment bits (RAM)

The analog terminal is set to a byte limit in the terminal bus with the

alignment bits.

Manufacturer parameters

3.2.1.6 R16 - R30 is the area of the manufacturer parameters

(SEEROM)

The manufacturer parameters are specific to each terminal type. They are

programmed by the manufacturer but can also be modified from the control

system. The manufacturer parameters are stored permanently in a serial

EEPROM and are therefore not destroyed by power failures.

These registers can only be modified after setting a code word in R31.

1 2 ... 7 8 9 10 11 12 13 14 15 16 17 ... 20 21

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Beckhoff KL2502 Manuel d'utilisateur Page 12

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