SIEMENS BINARY INPUT DEVICE, 8 X POTENTIAL-FREE CONTACTS

The N 262E01 binary input device is a 6 module units wide DIN rail mounted device in N-System dimensions with 8 inputs for potential-free contacts. It enables both statuses (contact is open or closed) and changes in status (contact became opened or closed) to be recorded by means of voltage impulses generated inside of the device. It can therefore be used, for example, to monitor the switching or operating states (whether a device or a plant is switched on or off, whether a limit violation or a malfunction or an alarm is being signalled), to record the change of status when switching on or switching off (whether a switch or a pushbutton was activated, whether it was activated for a shorter or longer period) and to record and count changes of the switching status (i.e. pulses) with a minimum on-time of the contact of 70 ms and a max. pulse succession of up to 5 pulses per second, without or with monitoring of the number of pulses counted until a predetermined threshold has been reached or exceeded.

At each input a red LED shows whether the connected contact is open (LED is off) or closed (LED is illuminated).
The N 262E01 has an integrated 230 V power supply in order to supply the electronics. This power supply enables the generation of the voltage pulses for checking the switching statuses and for displaying them via the LEDs even when there is no bus voltage present.

Note: The device is without function after the application
program has been “unloaded” with the ETS. The status of the inputs is also no longer displayed in this case. Application program The “25S8 Binary Input Device 980903” application program, which can be downloaded up from the ETS3.0f, supports a multitude of applications and enables one of the following functions to be assigned to every input:
- Switching status / binary value transmission
- Switching, edge-triggered
- Switching, short / long operation
- 1-button dimming
- 1-button solar protection control
- 1-button group control (sequence control)
- 1-bit Scene control
- 8-bit Scene control
- 8-bit value, edge-triggered
- 8-bit value, short / long operation
- 16-bit floating point value, edge-triggered
- 16-bit floating point value, short / long operation
- 8-bit pulse counting without threshold check
- 8-bit pulse counting with threshold check
- 16-bit pulse counting without threshold check
- 16-bit pulse counting with threshold check
- 32-bit pulse counting without threshold check
- 32-bit pulse counting with threshold check.
Using the ETS, one of the following functions can be allocated to one input pair, i.e. to two neighbouring inputs:
- 2-button dimming with stop telegram
- 2-button solar protection control.