The I/O Data Channel - Beckhoff BK75 series Technical Hardware Documentation

Function
I/O terminal types
IDN Name
S-1-0000 I/O data base
Meaning
IDN Name
S-1-0001 Max I/O Channel
Meaning
IDN Name
S-1-0002 List I/O data channels
Meaning
IDN Name
S-2-0000 I/O data channel
Meaning
BK7500

The I/O Data Channel

Set and actual values are exchanged between the controller and the
BK7500 via the I/O data channels. Set and actual values may be
exchanged either cyclically or non-cyclically.
The controller needs the I/O data base in order to address the I/O data
channel.
The set and actual values of a BK7500 are divided into the following types.
Digital input terminals KL1xxx (without KL1501)
Digital output terminals KL2xxx (without KL2502)
Analog input terminal KL3xxx
Analog output terminal KL4xxx
Encoder terminal KL5xxx
Communication terminal KL6xxx
Type Attributes
IDN Read/Write
This operating data contains the IDN of the first I/O data channel, i.e. the
IDN of the channel container for this I/O data channel. The controller reads
this value in order to calculate the IDN of the I/O data channel.
Type Attributes
Uint 16 Read/Write
This operating data indicates the maximum number of I/O data channels in
the BK7500.
Type Attributes
Uint 16 Read/Write
The BK7500 writes the required I/O data channels with their absolute
addresses into this operating data.
Type Attributes
Uint 16 Read
This operating data contains the IDN of the first I/O data channel. Observe
the mapping of the terminals!
SERCOS interface Coupler BK7500
Default
value
IDN: I/O base + 00000
Default
value
IDN: I/O base + 00001
Default
value
IDN: I/O base + 00002
Default
value
IDN: I/O data base + 0000
23