Local process image

All connected bus terminals are assigned in the default setting to the local process image of the BC/BX.

Mapping within the Bus Terminal Controller is carried out according to the following rule:
First come all the complex Bus Terminals, in whatever sequence they are physically inserted, followed by the digital Bus Terminals which are padded to a whole byte.

The default mapping of the complex Bus Terminals is:

Example

1 x BCxxxx or BXxxxx
1 1 x KL1012
2 1 x KL1104
3 1 x KL2012
4 1 x KL2034
5 1 x KL1502
6 1 x KL3002
7 1 x KL4002
8 1 x KL6001
9 1 x KL9010

Bus Terminal

Position

Input image

Output image

KL1502

5

%IB0...%IB5

%QB0...%QB5

KL3002

6

%IB6...%IB13

%QB6...%QB13

KL4002

7

%IB14...%IB21

%QB14...%QB21

KL6001

8

%IB22...%IB29

%QB22...%QB29

KL1012

1

%IX30.0 to %IX30.1

-

KL1104

2

%IX30.1 to %IX30.5

-

KL2012

3

-

%QX30.0 to %QX30.1

KL2034

4

-

%QX30.2 to %QX30.5

KL9010

9

-

-

Local process image 1:

Address of the Bus Terminals, which you have assigned to local PLCs (BCxx00)

If you don't know the address at which the Bus Terminals are located, which you have assigned to the local PLC of your BC/BX:

Perform your hardware configuration in the System Manager.
Once you have entered all Bus Terminals and PLC variables, right-click on the BC/BX in the hardware tree of the System Manager and select the menu item Export Variable Info...

A file is saved that you can insert in the PLC control under Import Project.

Under the global variables you now have the entry TwinCAT Import in which all variables are located that you have assigned to the local PLC of your BC/BX.