EC3-33x Coldroom Controller with EX5
User Manual
EC3-33x
A.6.5.063E - Rev 4
20
Emerson Electric GmbH & Co - ALCO CONTROLS - Heerstr. 111 - D-71332 Waiblingen - Germany - Tel.: ..49 (0) 7151 509 0 - Fax: 49 (0) 7151 509 200
Analog Sensor Object
The analog sensor object controls the analog inputs. If the object is disabled no data will be requested from the analog inputs and no
network variable updates will be performed. The status information is send by the nvoStatus of the node object. If any sensor failure
is detected, the “in_alarm” bit in the status structure is set.
Network Variables
Variable Type
Name
Type
Meaning
SNVT_state
nvoAnalogStatus
O
Bitfield to represent the error status of the analog inputs
SNVT_temp_p
nvoTemp6
O
Value of temperature sensor 6
UNVT_ANALOG
nciAnaCnfg
C
Configuration parameters of analog sensor object
The network variable “nvoAnalogStatus” will represent the error status on a sensor input when the failure monitoring is activated. The
default setting is “
monitoring on
” for all control sensors and “
monitoring off
” for the temp. 6 sensor. For each sensor two bits are
used from the bit field.
Bit Number
Meaning
Error code on display
0
Coil in sensor open
E0
1
Coil in sensor short circuit
E0
2
Coil out sensor open
E1
3
Coil out sensor short circuit
E1
4
Air in sensor open
E2
5
Air in sensor short circuit
E2
6
Air out sensor open
E3
7
Air out sensor short circuit
E3
8
Defrost termination sensor open
E4
9
Defrost termination sensor short circuit
E4
10
Temperature # 6 sensor open
E5
11
Temperature # 6 short circuit
E5
12
Pressure sensor open
E6
13
Pressure sensor short circuit
E6
Configuration Parameters
Analog Sensor
UNVT_ANALOG
Code
Description
SNVT
Name
Unit
Min
Max
Default
Res.
IR
Kb Lon
1
t1
Sensor 1 alarm monitoring unsigned short : 1
Sensor 1
0
1
0
n
n
y
*1
2
t2
Sensor 2 alarm monitoring unsigned short : 1
Sensor 2
0
1
0
n
n
y
3
t3
Sensor 3 alarm monitoring unsigned short : 1
Sensor 3
0
1
0
n
n
y
4
t4
Sensor 4 alarm monitoring unsigned short : 1
Sensor 4
0
1
0
n
n
y
5
t5
Sensor 5 alarm monitoring unsigned short : 1
Sensor 5
0
1
0
n
n
y
6
t6
Sensor 6 alarm monitoring unsigned short : 1
Sensor 6
0
1
0
n
n
y
7
t7
Sensor 7 alarm monitoring unsigned short : 1
Sensor 7
0
1
0
n
n
y
8
t8
Sensor 8 alarm monitoring unsigned short : 1
Sensor 8
0
1
0
n
n
y
9
P1
Pressure sensor 1 type
unsigned short : 4
PressSensor1Type
0
2
0
n
n
y
*2
10
P2
Pressure sensor 2 type
unsigned short : 4
PressSensor2Type
0
2
0
n
n
y
*2
Total 2 bytes
Default values depending
on version
*1
0 = Alarm monitoring on
1 = Alarm monitoring off
*2
0 = PT3-07A
1 = PT3-18A
2 = PT3-30A
Alarm Messages
Alarm messages will be send by the “nvoAlarm” of the node object.
Condition
SNVT #
Alarm Value
Message
Priority
any sensor failure occurs
83
nvoAnalogStatus
AL_ALM_CONDITION
PR_LEVEL_3
any sensor failure disappears
83
nvoAnalogStatus
AL_NO_CONDITION
PR_LEVEL_0
