LON Software Interface Description
Excel 800
EN1B-0375GE51 R0910
72
XFL(R)824 Relay Output Module
One instance of the L
ON
M
ARK
open-loop sensor object has
been assigned per input of the XFL824/XFLR824 Relay
Output Module.
Each output object has its own configuration properties,
except for heartbeat configuration, which will be shared
among all objects.
Configuration
Parameter
Value File
nviDoSwitch[x]
SNVT_switch
nvoDoActPosnFb[x]
SNVT_switch
Open Loop Actuator Object
(LonMark Object Type 3)
nciDoConfig[x]
UCPT_DOConfig
nciRcvHrtBt[x]
SCPTmaxRcvTime
|1
#1
Fig. 108 L
ON
M
ARK
output object
Relay Output Command – nviDoSwitch[ ]
This network variable is used to drive the relay output.
It is typically bound to a L
ON
W
ORKS
control device issuing an
output level ON/OFF, respectively 0 … 100%.
Valid Range
Value
State
Action
N/a 0
OFF
0 1
OFF
0.5 … 100%
1
Outputs are switched
according to actual output
type configuration
N/a
-1
INVALID:
as defined for failure behavior
Table 70 Relay output command values
Default Value
Value = 0
State = -1
Start-up Behavior
At start-up, i.e., power-up or reset, all nvi's will be initialized
with INVALID, leading the actuator to drive to the configured
safety position after 1 minute.
Receive Heartbeat
The default configuration for “Receive Heartbeat” is 300 sec.
If no nvi update is received during this time, the field devices
will go to their configured safety positions.