Beckhoff BK3000 User Manual download pdf (Page 46)

Appendix

46 BK3xxx/LC3100

Configuration telegram

The configuration data to be transferred with the Chk_Cfg service

determines which process data is exchanged with the Data_Exchange

service.

Bit 1 from byte 9 of the User_Prm_Data is used to decide whether auto-

configuration or programmed configuration is expected (see

parameterisation).

If bit 0 from byte 5 of the User_Prm_Data is set, the first code in the

configuration data indicates that the 2 byte PLC interface is switched on,

otherwise this code is omitted:

Code Description

0xB1

2 byte PLC interface

2 byte diagnostic interface

If bit 1 from byte 5 of the User_Prm_Data is set, the next code in the

configuration data indicates that the 2 byte diagnostic interface is switched

on, otherwise this code is omitted:

Code Description

0xB1

2 byte diagnostic interface

Auto-configuration

Digital terminals

The data for all the digital input and output terminals is collected into a byte

array for inputs and a byte array for outputs in the sequence of the sockets.

The following codes can be used for digital data:

Code Description

0x1n

(n+1) bytes digital inputs

0x2n

(n+1) bytes digital outputs

0x3n

(n+1) bytes digital inputs and outputs

These codes can be used freely, so that the total of the input and/or output

bytes corresponds in each case to the existing data length for digital inputs

and outputs (rounded up to the next byte).

Since the digital data is transferred after all the analogue data, the digital

codes are to be defined after all the analogue codes.

Analogue terminals

8 bits of control and/or status data are available as well as the user data to

each channel in the analogue terminals. These terminals are classified as

intelligent terminals, and support register communication (8 bit

control/status data, 16 bits I/O data per channel). A specific coding in the

control/status data determines whether the first 16 bits of the user data are

to be interpreted as I/O data for the register communication.

A code is first to be defined for each analogue terminal, where the

sequence depends on the socket positions.

1 2 ... 41 42 43 44 45 46 47 48 49 50 51 ... 66 67

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