Corrective maintenance Report, locate, and eliminate faults quickly ServiceLab software for SIMATIC ServiceLab is a software package for installation on SIMATIC programming devices and other PCs. With ServiceLab, you can easily access all the data in the SIMATIC S5 / S7 controller's process image for subsequent analysis, visualization and archiving. ServiceLab is a valuable maintenance tool which makes it possible e.g. to test functional sequences, output test charts even for long-term tests, monitor limit values and so on, thus providing invaluable support even when attempting to locate sporadic problems.