C Script Example in WinCC - Wincc-pcs7-scripts Typing CST Test
Loading…
C Script Example in WinCC — Wincc-pcs7-scripts Code
Internal C script in WinCC that toggles a digital output based on tag state.
#include "apdefap.h"
void ToggleOutput()
{
float level;
GetTagFloat("Tank_Level", &level);
if(level > 75.0)
{
SetTagBit("Pump_On", 1);
}
else
{
SetTagBit("Pump_On", 0);
}
}Wincc-pcs7-scripts Language Guide
WinCC PCS 7 Scripts are scripting capabilities within Siemens SIMATIC WinCC/PCS 7 SCADA and process control systems, allowing automation engineers to extend HMI, SCADA, and process functionalities through VBScript or C scripts. They enable advanced control, automation logic, and workflow customization within PCS 7 projects.
Primary Use Cases
- ▸Custom HMI automation and dynamic screen updates
- ▸Alarm management and notification logic
- ▸Tag and process value manipulation
- ▸Integration with SQL databases or external systems
- ▸Automation of repetitive operator tasks and workflows
Notable Features
- ▸Event-driven scripting triggered by user actions or process changes
- ▸Tag manipulation, read/write operations, and formula calculations
- ▸Database connectivity for logging, reporting, and batch processing
- ▸Integration with WinCC runtime, process control blocks, and communication layers
- ▸Supports both VBScript and ANSI C scripting languages
Origin & Creator
Developed by Siemens as part of the SIMATIC WinCC and PCS 7 automation suite, with scripting capabilities introduced in the late 1990s to enhance HMI and SCADA flexibility.
Industrial Note
Scripts allow high-level customization of automation tasks, including dynamic tag handling, event-driven logic, and process optimization beyond standard PCS7 function blocks.