DCSTL wiring and programming example
This topic demonstrates how to wire the guard I/O and program the instruction in the safety control portion of an application
This example complies with ISO 13849-1, Category 4 operation.
TIP:
The standard control portion of the application is not shown in the following diagram.
Wiring Diagram
Programming Diagram
This programming diagram shows the Dual Channel Input Stop with Test and Lock (DCSTL) instruction with inputs and outputs.
Ladder Diagram
TIP:
- The tag in the preceding diagram is an internal Boolean tag that has its value determined by other parts of the user application that are not shown in this example. The falling edge (1->0) of the Test Request input forces a test to be executed (safe state must be observed). Connecting this input to the output that enables the hazard forces a test to be executed every time that the hazard is stopped.
- This tag is an internal Boolean tag that has its value determined by other parts of the user application that are not shown in this example.
Module Definition
The following sections provide examples of how to use the programming software to set the Guard I/O module configuration operands.
Rockwell Automation
suggests selecting Exact Match
for the Electronic Keying
as shown. Compatible Match
is also acceptable.Module Input Configuration
Module Test Output Configuration
Module Output Configuration
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