USER MANUAL :
DOCUMENT NAME
In order to reset the Bluetooth interface, with the housing open,
Remove all power from the logger -
Press and hold the Bluetooth reset
Power up the logger again while holding the button.
pressed.
Once the Red Status LED comes on again, the button can be released.
This will now reset the Bluetooth interface.
1.7
Connections
Connections are available on a series of 10 terminal connectors
These connections are as follows:
1. External Power Supply / Solar system ground (optional)
2. External 12V Power Supply / Solar system
3. 24V 30mA max power generator output (used for powering a current loop device)
4. Ground for the 24V generator
5. Isolated negative connection for 4-20mA isolated loop input
6. Isolated positive connection for 4-20mA isolated loop input
7. Modbus/RS485 Data positive input (D+)
8. Modbus/RS485 Data negative input (D-)
9. Isolated ground for Modbus/RS485 input
10. Earthing connection Modbus/RS485 input (transient voltage protection)
MANUAL : CDS551 CIRRUS MODBUS LOGGER
NAME
CLASSIFICATION
DATE
PAGE
with the housing open, please follow the below procedure.
- remember to remove the batteries if external power is present.
Press and hold the Bluetooth reset button.
Power up the logger again while holding the button. Bluetooth LED will be on confirming the button has been
Once the Red Status LED comes on again, the button can be released.
This will now reset the Bluetooth interface.
10 terminal connectors.
ground (optional)
/ Solar system (optional)
(used for powering a current loop device)
20mA isolated loop input
20mA isolated loop input
. Earthing connection Modbus/RS485 input (transient voltage protection)
PAGE
please follow the below procedure.
emember to remove the batteries if external power is present.
Bluetooth LED will be on confirming the button has been
