Beckhoff KL5001 Bedienungsanleitung PDF herunterladen (Seite 8)

8 KL5001

The complex terminals can be adjusted to different operating modes or

functionalities. The " general description of register " describes the con-

tents of the registers, which are identical for all complex terminals.

The terminal-specific registers are explained in the section following to it.

The access to the internal registers of the terminal is described in the sec-

tion " register communication ".

General register description

Complex terminals that possess a processor are capable of bi-directionally

ex-changing data with the higher-level control system. Below, these termi-

nals are referred to as intelligent bus terminals. They include the analog

inputs (0-10V, -10-10V, 0-20mA, 4-20mA), the analog outputs (0-10V, -10-

10V, 0-20mA, 4-20mA), serial interface terminals (RS485, RS232, TTY,

data transfer terminals), counter terminals, encoder interfaces, SSI inter-

faces, PWM terminals and all other parameterizable terminals.

Internally, all intelligent terminals possess a data structure that is identical

in terms of it's essential characteristics. This data area is organized in

words and embraces 64 memory locations. The essential data and pa-

rameters of the terminal can be read and adjusted by way of the structure.

Function calls with corresponding parameters are also possible. Each logi-

cal channel of an intelligent terminal has such a structure (therefore, 4-

channel analog terminals have 4 register sets.

This structure is broken down into the following areas:

(You will find a list of all registers at the end of this documentation).

Area Address

Process variables

0-7

Type registers

8-15

Manufacturer parameters

16-30

User parameters

31-47

Extended user area

48-63

Process variables R0 - R7: Registers in the terminal’s internal RAM:

The process variables can be used in additional to the actual process im-

age and their functions are specific to the terminal.

R0 - R5: These registers have a function that depends on the terminal

type.

R6: Diagnostic register

The diagnostic register may contain additional diagnostic information. In

the case of serial interface terminals, for example, parity errors that have

occurred during data transfer are indicated.

R7: Command register

High-Byte_Write = function parameter

Low-Byte _Write = function number

High-Byte _Read = function result

Low-Byte_ Read = function number

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

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