Step 4: Configuring An Sm 1226 F-Dq 4 X 24 Vdc For Connecting A Motor - Siemens SIMATIC S7 Functional Safety Manual

2.2.5

Step 4: Configuring an SM 1226 F-DQ 4 x 24 VDC for connecting a motor

In this step, you configure an F-DQ DC for indirect connection of a motor to channel 0, using
2 contactors.
Procedure
1. In the Device View of the S7-1200, use drag-and-drop to add an F-DQ 4x24VDC_1 digital
electronic module from the hardware catalog to slot 3.
2. Open "Device data" to display the "Device overview" area. Here, you can change the start
addresses for the inputs and outputs of your fail-safe module. Use the module default I/O
addresses of "17" and "17" for this example (inputs begin at byte 17, and outputs begin at
byte 17).
Note
The fail-safe SMs each use both Is and Qs, even though they may physically only have
input channels or only have output channels.
The F-DQ DC has 4 output channels; however, the SM requires 6 input (I) bytes and 6
output (Q) bytes.
S7-1200 Functional Safety Manual
Manual, 02/2015, A5E03470344-AA
Getting started
2.2 Configuring
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