COMPACT I/O MODULE
5
95-7716—1
Fig. 6. Wiring example XIO-8AI with sensor.
SOFTWARE DESCRIPTION
The Node Object monitors and controls the functions of the
different objects in the device. It supports the basic functions
Object-Status and Object-Request required by LonMark.
Refer to Fig. 7 for a basic illustration of Node Objects. The
following objects are monitored by the Node Object.
nviRequest
NVT_obj_request
nvoStatus
SNVT_obj_status
nvoFileDirectory
SNVT_address
Fig. 7. XIO-8AI Node Object.
SCPTmaxSendTime
SNVT_time_sec
All output variables described below will be issued at the
latest at the end of the preset period even without status
change.
Time settings:
0 timer function off-state
6553,8 s (factory setting 60 s)
UCPTHyst
SNVT_temp_p
Setting of the hysteresis; the output variables nvoHigh and
nvoLow switch over when the hysteresis is expired (factory
setting 2 Kelvin).5; 1. counted measurand = 1.
Fig. 8. XIO-8AI Temp Objects.
nvoTemp_1...8
SNVT_temp
The output variable supplies a value with format ° C
depending on the input signal of 0 to 10.0 V and the settings in
UCPTTempHigh and UCPTTempLow and/or the resistance of
the selected temperature sensor.
nvoTemp_1...8
SNVT_temp_p
See Temp_1...8 but with 0.01° C format.
nvoPercent_1...8
SNVT_lev_percent
The output variable supplies a value with format 0 to 100.0%
for voltage measurements depending on the input signal of 0
to 10.0 Volt.
nvoVoltage_1...8
SNVT_volt_f
The output variable supplies a value with format 0 to 10.0 Volt
for voltage measurements depending on the input voltage.
nvoResistance_1...8
SNVT_res_f
The output variable supplies a value with format Ohm
depending on the input signal of 40 Ohm to 4 MOhm.
M25070
24V
24V
XIO-8AI
SERVICE
+24V
GND
E1
E2
SERVICE
RESET
ON
+24V
GND
E1
E2
8 C 7
C 6
C 5
C
S
1 C 2
C 3
C 4
C
S
Out
GND
+10 to +20V
Sensor
connectors
Jumper
15V Standard
M25045
Node Object
nviRequest
SNVT_obj_request
nvoStatus
SNVT_obj_status
nvoFileDirectory
SNVT_address
SCPTmaxSendTime
UCPTHyst
M25046
Temp_1- 8 Objects
nvoTemp_1 - 8
SNVT_temp
nvoTempp_1 - 8
SNVT_temp_p
UCPTTemp_Offset
UCPTSensor_tab
UCPTTempMax
UCPTTempMin
UCPTHighT
UCPTLowT
SCPTinvrtOut
SCPTminSendTime
SCPTminDeltaTemp
nvoPercent_1 - 8
SNVT_lev_percent
nvoVoltage_1 - 8
SNVT_volt_f
nvoResistance_1 - 8
SNVT_res_f
nvoHigh_1 - 8
SNVT_switch
nvoLow_1 - 8
SNVT_switch
