Danfoss CCR3 Controller - Manual (Page 9)

Installation Guide CCR3 Controller
99 Heating Solutions VI.D3.A2.02 DEN-SMT/SI
10. uSING tHE DAtA StORAGE CARD
The SD card may never be installed or removed from
the CCR3 Controller when data is being written to it,
this may lead to:
– data loss
– SD card damage
– CCR3 Controller damage.
INSTALLING THE SD CARD
Disconnect the controller from the power supply for
at least five seconds before inserting the SD card.
The SD card may only be installed after this pause.
REMOVING THE SD CARD
From ACCESS CODE menu quadruple press up arrow
key “ ▲” without entering any code it will give access
to “SD Card Exchange”. SD card can be pulled out
safely from CCR3 Controller (process of date recording
is interrupted).
Power failures occur as data written to the SD card may
also corrupt the archive or even damage files stored
on the card. To reduce this risk, it is recommended
to use a buffered power supply for a CCR3 Controller
used with the data archiving function and to set the
“Archive” setting to “2 Files.” The archive files will be
doubled, but the storage space will drop by half.
11.CCR3 ModBus PROtOCOL
Data type: Coil [bool] Coil No. Description
MB_CoilOut [2 … 9] - open valves (0 … 7)
MB_CoilOut [10 … 17] - risers with open valves (riser: 8 … 15)
Data type: Register [integer] Register No. Description
MB_RegisterOut [0 … 8] - temperature sensors S0 … S8 (8000 <=> 80 °C)
MB_RegisterOut [9 … 16] - temperature sensors S9 … S16 (8000 <=> 80 °C)
MB_RegisterOut [17 … 24] - temperature setting for risers 1 … 8
MB_RegisterOut [25 … 32] - temperature setting for risers 9 … 16
MB_RegisterOut [36+0 … 7] - control signal (opening) in % for valve in risers: 1 … 8
MB_RegisterOut [44+0 … 7] - control signal (opening) % for valve in riser: 9 … 16
Baud rate: data bits stop bits parity
9.600 8+1 N
19.200 8+1 N
38.400 8+1 N