ENG
“EVD Evolution TWIN” +0300006EN - rel. 2.6 - 31.01.2019
48
8.4 Variables accessible via serial
connection – driver A
Description
Default
Min
Max
Type
CAREL SVP Modbus®
R/W
Probe S1 reading
0
-20 (-290)
200 (2900)
A
1
0
R
Probe S2 reading
0
-85(-121)
200 (392)
A
2
1
R
Probe S3 reading
0
-20 (-290)
200 (2900)
A
3
2
R
Probe S4 reading
0
-85(-121)
200 (392)
A
4
3
R
Suction temperature
0
-85(-121)
200 (392)
A
5
4
R
Evaporation temperature
0
-85(-121)
200 (392)
A
6
5
R
Evaporation pressure
0
-20 (-290)
200 (2900)
A
7
6
R
Hot gas bypass temperature
0
-85(-121)
200 (392)
A
8
7
R
EPR pressure (back pressure)
0
-20 (-290)
200 (2900)
A
9
8
R
Superheat
0
-40 (-72)
180 (324)
A
10
9
R
Condensing pressure
0
-20 (-290)
200 (2900)
A
11
10
R
Condensing temperature
0
-85(-121)
200 (392)
A
12
11
R
Modulating thermostat temperature
0
-85(-121)
200 (392)
A
13
12
R
Hot gas bypass pressure
0
-20 (-290)
200 (2900)
A
14
13
R
CO
2
gas cooler outlet pressure
0
-20 (-290)
200 (2900)
A
15
14
R
CO
2
gas cooler outlet temperature
0
-85(-121)
200 (392)
A
16
15
R
Valve opening
0
0
100
A
17
16
R
CO
2
gas cooler pressure set point
0
-20 (-290)
200 (2900)
A
18
17
R
4 to 20 mA input value (S1)
4
4
20
A
19
18
R
0 to 10 V input value (S2)
0
0
10
A
20
19
R
Control set point
0
-60 (-870)
200 (2900)
A
21
20
R
Controller firmware version
0
0
800
A
25
24
R
MOP: suction temperature threshold (S2)
30
-85(-121)
200 (392)
A
102
101
R/W
Discharge superheat
0
-40(-72)
180(324)
A
104
103
R
Discharge temperature
0
-60(-76)
200(392)
A
105
104
R
Thermal time constant NTC probe S4
50
1
800
A
106
105
R/W
MOP: High evaporation temperature threshold
50
LOP: threshold
200 (392)
A
107
106
R/W
Condensation pressure for subcooling measure
0
-20(-290)
200(2900)
A
108
107
R
Condensation bubble point
0
-60(-76)
200(392)
A
109
108
R
Condensation liquid temperature
0
-60(-76)
200(392)
A
110
109
R
Subcooling
0 -40(-72)
180(324)
A
111
110
R
Liquid regulation evaporator/ condenser level percentage
0
0
100
A
116
115
R
Valve position
0
0
9999
I
4
131
R
Current unit cooling capacity
0
0
100
I
7
134
R/W
Adaptive control status
-
0
10
I
75
202
R
Last tuning result
0
0
8
I
76
203
R
Extended measured probe S1 (*)
0
-2000 (-2901)
20000 (29007)
I
83
210
R
Extended measured probe S3 (*)
0
-2000 (-2901)
20000 (29007)
I
84
211
R
Emergency closing speed valve
150
1
2000
I
86
213
R/W
Control mode (comp. BLDC)
1
1
3
I
89
216
R/W
Type of unit for serial comm.
0
0
32767
I
94
221
R
HW code for serial comm.
0
0
32767
I
95
222
R
Reading of probe S1*40
0
-32768
32767
I
97
224
R
Reading of probe S2*40
0
-32768
32767
I
98
225
R
Reading of probe S3*40
0
-32768
32767
I
99
226
R
Reading of probe S4*40
0
-32768
32767
I
100
227
R
ALARMS
Low suction temperature
0
0
1
D
1
0
R
LAN error
0
0
1
D
2
1
R
EEPROM damaged
0
0
1
D
3
2
R
Probe S1
0
0
1
D
4
3
R
Probe S2
0
0
1
D
5
4
R
Probe S3
0
0
1
D
6
5
R
Probe S4
0
0
1
D
7
6
R
EEV motor error
0
0
1
D
8
7
R
Status of relay
0
0
1
D
9
8
R
ALARMS
LOP (low evaporation temperature)
0
0
1
D
10
9
R
MOP (high evaporation temperature)
0
0
1
D
11
10
R
LowSH (low superheat)
0
0
1
D
12
11
R
HiTcond (high condensing temperature)
0
0
1
D
13
12
R
Status of digital input DI1
0
0
1
D
14
13
R
Status of digital input DI2
0
0
1
D
15
14
R
Guided initial procedure completed
0
0
1
D
22
21
R/W
Adaptive control ineffective
0
0
1
D
40
39
R
Mains power failure
0
0
1
D
45
44
R
Regulation backup from supervisor
0
0
1
D
46
45
R/W
Forced valve closing not completed
0
0
1
D
49
48
R/W
PR
O
TEC
T.
A
C
TIV
. LowSH (low superheat)
0
0
1
D
50
49
R
LOP (low evaporation temperature)
0
0
1
D
51
50
R
MOP high evaporation temperature)
0
0
1
D
52
51
R
HiTcond (high condensing temperature)
0
0
1
D
53
52
R
Direct relay control
0
0
1
D
57
56
R/W
Enable LAN mode on service serial port
(RESERVED)
0
0
1
D
60
59
R/W
Tab. 8.c
(*) The displayed variable is to be divided by 100, and allows us to appreciate
the hundredth of a bar (psig).
Summary of Contents for EVD Evolution Twin
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