Siemens SIMATIC S5-100U System Manual page 425

S5-100U
Installation
The diagnostic module is plugged into a bus unit like any other input or output module (see
chapter 3). The module has no mechanical coding. The coding element on the bus unit does not
have to be reset.
Note
The module can be plugged in and removed regardless of the operating status of the
programmable controller.
Wiring
No wiring is required. Existing wiring does not have to be removed.
Addressing
There is no addressing since the module cannot be addressed by the programmable controller.
EWA 4NEB 812 6120-02b
Function Modules
15-11