Pre-assembled front connectors

Pre-assembled front connectors are available for connecting to the I/O modules. These are plugged into the I/O module to be wired instead of the front connector. The front connector modules are available in a wide range of designs for digital and analog I/O modules. The terminal modules are attached to these front connectors.

The modular solution is available in two different lengths (2.5 m and 5.0 m) The digital solution is with unshielded cables, the analog solution is with shielded cables. The cable cross-section is 0.14 square mm.

Connection module

The system has digital and analog terminal modules for connecting the I/O signals. These are snapped onto the standard mounting rail. The terminal modules with basic or signal functionality are available in a 1-byte version.

Terminal modules are available for two different connection methods: with push-in or screw-type terminals The potential must be fed in at the terminal module.

If other voltage or power levels are required in the field, the terminal module for TPRo or TPOo output signals is used. For the TPRo terminal module, relays are used for the implementation. For the TPOo terminal module, optocouplers are used for the implementation. This converts the 24 V DC output signal simply and reliably to another voltage or power level. If 230 V AC or 110 V AC input signals have to be transmitted to the controller in the field, a connection module with relay TPRi is available that simply converts the 230/110 V AC signal to 24 V DC. This means that there is always the same voltage level on the module side.

Use with optocouplers for the TPRo relay modules

If higher switching frequencies of the relay terminal module are required for the output signals, the relay can simply be replaced with an optocoupler (note technical specifications) in order to increase the switching frequency here.

SIMATIC TOP connect for S7-1500/ ET200 MP, fully modular connection