SIMATIC TDC hardware
System Manual, 08/2017, A5E01114865-AL
103
SM500 signal module
5.1.1
The SM500 signal module provides analog and digital I/O, as well as incremental and
absolute encoder connections.
Use cases include:
● Central connection of drives
● Connection of analog and digital actuators and sensors
● Status display by means of integrated LEDs
Control and display elements
LED displays
The SM500 signal module is equipped with 8 LEDs. H1 and H2 provide information about
the current module state.
Table 5- 1 LED displays of signal module SM500
H1 (green) and H2 (red) Module status display
H3 (green) and H4 (green)
Can be controlled by means of function block BIQ8 (digital
output).
H5 (green) and H6 (green)
H7 (green) and H8 (green)
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