Network Timer Functions - Danfoss VLT 5000 Instruction Manual

Network
Timer
Functions
Min send time
Sets the minimum period between
transmissions for all output network variables,
using the network variable nciMinSendT. This
function is used to keep the transmission of
variables that change continuously from
dominating the network communication.
Max receive time
This drive function is replaced by the value
set in parameter 803, Bus Time Out. The
LonWorks option will initiate bus time out
activities when the time set in parameter 803
expires without receiving an input network
variable directed to the drive. This acts like a
LonWorks receive heartbeat. The action taken
by the drive is determined by the setting
selected in parameter 804, Bus time out
function. See the parameter description
section of this manual. The value of
nciMaxReceiveT has no effect on the
operation of the drive.
MG.60.N1.22 - VLT is a registered Danfoss trademark
Function SNVT
type
Min send SNVT
time _elapsed
_tm
Max SNVT
receive _elapsed
time _tm
Max SNVT
send _elapsed
time _tm
1
78 kbps transformer coupled twisted pair and 78 Kbps free topology transceiver models.
2
1.25 Mbps transformer coupled twisted pair transceiver model.
VLT ® 5000 / VLT
Variable Units
Name
nciMin- time
SendT
nciMax- time
ReceiveT
nciMax- time
SendT

Network Timer Functions

Max send time
This function sets the maximum time between
transmissions for the network variables Drive
Output 1, 2, and 3 using the configuration
network variable nciMaxSendT. It can be used
by the controller to monitor the health of the
VLT and controller connection. It acts like a
LonWorks send heartbeat.
The Max send time function is disabled when
nciMaxSendT is not configured or set to "0."
® 6000 HVAC / VLT ®
Max Min
0 days 0 days
0 hours 0 hours
1 min 0 min
5 sec 0 sec
1
535 msec 100 msec
2
30 msec
0 days 0 days
18 hours 0 hours
12 min 0 min
15 sec 1 sec
0 msec 0 msec
0 days 0 days
0 hours 0 hours
1 min 0 min
5 sec 0 sec
1
535 msec 100 msec
30 msec 2
8000 AQUA
Default
0 days
0 hours
0 min
0 sec
500 msec
0 days
0 hours
0 min
0 sec
0 msec
(Off)
0 days
0 hours
0 min
0 sec
0 msec
(Off)
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