Operator Control - Siemens SIMATIC VS120 Operating Instructions Manual

10.5.3

Operator control

Model selection
• The DISA bit must be set to 1 in order to select a model.
• The desire model number is set at the FB1 MODEL input.
• The model change is completed when the TRD and RDY bits change from FALSE to
• As long as no model has been transferred, the value 0 is output at the MODEL_OUT
• The MODEL_OUT output changes to 0 as soon as the DISA bit is reset.
• If MODEL = 0, the last selected model is retained. 0 is output at the MODEL_OUT output.
Reset
• When errors are reset, the SIMATIC VS120 module errors (IN_OP = 0) and the FB1
Triggering
• Image processing with the SIMATIC VS120 can be triggered with the trigger input at FB1.
• In mixed operation "control over PROFIBUS DP and triggering over DI/DO", the trigger
Transferring the delay time
• The time value for hardware trigger delay is set at the FB1 DELAY parameter. With the
Reading and transferring result data
• FB1 is always ready to receive.
• Following an OK or N_OK evaluation, the result data is output
• The data are valid if the NDR bit changes from 0 to 1.
• The number of sub-ROIs to be transferred is set in the "Connections - Output tab" of the
Vision Sensor SIMATIC VS120
Operating Instructions, Edition 02/2006, A5E00757507-01
TRUE. In this case, the applied model number is applied to the MODEL_OUT output.
output.
transmission errors are reset.
signal can be connected directly to the VS120 processing unit. In this case, the TRG FB1
parameter remains free.
Delay time parameter, you can specify the value for hardware-based triggering.
adjustment support.
Process interfacing over an automation system (PLC, PC)
10.5 Function block FB1
10-19