Connection Of Sensors - Rittal 7979.711 Notice D'installation Et D'utilisation

Settings of the RCM
For any required software updates, please visit www.rittal.com or contact Rittal Service (see
section 10).
EN
6.3

Connection of sensors

A maximum of eight sensors and handle systems from the CMC/RCM portfolio can be connected to
the intelligent RCMs, e.g. temperature, humidity, access, smoke, leakage, air flow.
Radio sensors are not supported.

Connect one of the sensors from the accessories range to the CAN bus interface of the RCM using
a CAN bus connection cable (fig. 5, item 12).
After connecting a sensor, the sensor software will be updated first of all, if necessary. The status
LED of the sensor remains continuously blue and also flashes purple during the entire update pro-
cess. In addition, the status LED of the RCM flashes white, and a corresponding message appears
on the website.
Status change display following completion of an essential update:
– The two green and the two red CAN bus LEDs on the CAN bus connection of the connected sen-
sor will start to flash.
– The multi-LED of the RCM flashes continually in the sequence green – orange – red.
– The multi-LED of the connected sensor flashes blue continuously.

Confirm the newly connected sensor on the RCM website.
Alternatively, the newly connected sensor can also be confirmed locally via the display. To do this:

In the Rittal main menu, select the "Setup" entry and confirm your entry by pressing the "Enter" key.

Select the "Sensor" entry and press the "Enter" key to confirm your selection. The menu for entering
your security PIN will appear.

Enter the required security PIN (see section 6.1 "Settings via the display") then confirm the entry "Ac-
knowledge All Devices" by clicking on "Enter".
Status change display on the CAN bus LEDs:
– Continuous green LEDs: CAN bus status "OK".
– Continuous red LEDs: CAN bus status faulty.
Status change display on the multi-LED of the RCM:
– Continuous green light: The RCM and all devices connected to the CAN bus have the status "OK".
– Continuous orange light: The RCM or at least one device connected to the CAN bus has the status
"Warning".
– Continuous red light: The RCM or at least one device connected to the CAN bus has the status
"Alarm".
Status change display on the multi-LED of the connected sensor.
– Continuous blue flashing: Communication via the CAN bus.
– Green flashing: When the measured value changes or, at the latest, every 5 seconds.
Further sensors are connected as daisy chain.

If necessary, connect another component (e.g. another sensor type) to the second, free CAN bus
interface of the first component.

Proceed in the same way for further components (up to eight units in total).
Note:
Further information concerning the connection and configuration of sensors can be found
in the associated documentation of the accessory part.
28 Rittal RCM Inline Meter