Evco EVBOX1 EVB1206 - DATA LOGGING EXTENSION FOR EN 12830 STANDARD COMPLIANCE; Preliminary information; HACCP writing mode

EVCO S.p.A. EVBOX1 | Installation guide ver. 2.0 | Code 144BOX1E204
page 37 of 100
11 DATA LOGGING EXTENSION FOR EN 12830 STANDARD COMPLIANCE
11.1 Preliminary information
Some devices have a data logging extension for EN 12830 standard compliance.
Through the extension it is possible to write information about the device into a CSV vile, on SD card (not included).
The devices have the following writing modes:
- “HACCP” mode; in this case a file is generated daily and another one monthly (the kind of information written on them is
the same)
- “service” mode; in this case it is generated just one file.
The “HACCP” writing mode is always active; the “service” writing mode must be activated with the procedure shown in paragraph
“11.3.2 Activating the “service” writing mode”.
The activation of the “service” writing mode has not effect on the “HACCP” one.
If the device is switched off, no information will be written.
The SD card status LED provides information on the writing; look at paragraph 14.1 “Signals”.
To allow verifying the integrity of the information, into the files it is also written a signature based on a system of cryptographic keys;
to highlight a possible alteration, a free software is available on www.evco.it.
11.2 “HACCP” writing mode
The device writes into the CSV file the following information:
- the value of the room temperature
- the value of the temperature detected by the auxiliary 2 probe
- the value of the temperature detected by the auxiliary 3 probe (if available).
Parameter Sd0 sets the writing interval.
The device also writes into the CSV file information about the following events:
- alarms activation/deactivation
- errors activation/deactivation
- device switching on/off
- defrost activation/end
- function “energy saving” activation/deactivation
- auxiliary 3 probe activation/deactivation
- power supply restoring.
When these events arise the device records the value of the temperature detected by all the probes.
For each information the device records the time it has been recorded.
In absence of power supply a battery guarantees the writing into the CSV file of information about the auxiliary 2 probe and about the
auxiliary 3 probe (they are electrically independent on the device power supply) and of information about the lack of power supply; the
battery range in absence of power supply is more than 72 h.
The following drawing shows the aspect of a file written with the “HACCP” writing mode.
A B C D E F G H I J K L
1
LOG247_2015_01_07
Signature
V1.0
2
EVBOX1214 EEE333462
3
Address 247 E767C1DCC
4
Date 07/01/2015 E5428EF05
5
Time Cab Temp
Evap
Temp
Aux2
Temp
Alarm Event E10B24EF7
6
dd/mm/yy
hh:mm
°C °C °C EF73E517F
7
07/01/2015
12.27
-27,6 -19,5 -11,0 POWER UP EEE333462
8
07/01/2015
12.29
-27,7 -19,5 -11,0 E5428EF05
9
07/01/2015
12.30
-19,5 -11,0 PR1 ON E5428EF05
10
07/01/2015
12.33
-19,5 -11,1 E5428EF05
11
07/01/2015
12.34
-19,5 -11,0 PR1 ON E10B24EF7
12
07/01/2015
12.35
-27,7 -19,5 -11,0 EF73E517F