Specifications

A-4

A LAUER driver

Customer-specific presettings are to be inserted at 2 positions:

PB INIT customer specific presetting for restart

PB COFF customer specific assignment for an error case

Attention!

In all projects on the floppy disk, the INIT and COFF PBs are to be adjusted

specifically for the connected operating console. The contained HLT

commands are to be deleted.

A1.3 Parameterization of the PCSKOMM PB

P0: Cross-reference data block (here -QUERWL)

The cross-reference addresses are listed in this block. At the restart,

these addresses will be transferred once into the PCS 830. It is

ensured, that the download of the cross-reference list is made in the

first cycle of the programmable controller. In the CL 300 this first

cycle is extended due to the download by approx. 100 ms. During

the following cycles, the -PCSKOMM PB receives the corresponding

cross-reference address directly from the PCS 830 (time saving).

P1: Communication data block (here -PCSKOMM)

This block is active during processing of the handling block. Cross-

reference addresses specified in the cross-reference data block

addressing a data word relate to the here indicated data block.

P2: Switch for resetting following a fault (bit)

On a communication fault, communications can be restarted using

this bit. The faults indicated in DW3 (default assignment) are then

reset automatically! Please note that no edge evaluation is made.

I.e. with the P2 bit set, communication is automatically restarted after

a fault has appeared! This mechanism can also be realized by

connecting the P3 fault output directly to the P2 reset input.

P3: General error message (bit)

The P3 general fault bit is set for any error in the connection between

the programmable controller and the PCS 100. DW3 (default

assignment) can be evaluated for the exact cause of error. This bit is

reset as soon as the communication is running without a fault.

P4: Flag for the first processing of the handling block (bit)

This flag should be reset before the first call (restart) of the handling

block. It is automatically set during the first execution of the PB. Among

other things, it is used for presetting during a restart.

P5: Customer-specific presetting for communication start

The -INIT PB is selected at communication start. PCS-specific preset-

tings are performed by this PB. The HLT command must be removed.

P6: Customer-specific presetting for communication loss

The -COFF PB is selected at communication loss. PCS-specific

presettings are performed by this PB. The HLT command must be

removed.