t.a.c. MZ18L Manual page 5

Optional Network Variables
nviManActPos SNVT_lev_percent
{0...100 % ; 163.835}
{163.835} = INVALID
NvoDISwitch SNVT_switch
Possible values
{0.0 , 0 }
{100.0 , 1}
{x, 0xFF=255=-1)}
Standard SCPT Master List -
Configuration Names from
Parameters Echelon
nciDirRev SCPT direction
nciMaxRcvTime SCPTmaxRcvTime
Definition
nviManActPos = 163.835 (INVALID)
After Power-on or Reset
Manual operation is switched off
nviManActPos = 0% or 100%
Synchronization with full running time + 30%.
The synchronization can be interrupted if new
values are received.
(excluding during synchronization after Power-
on or Reset.
0% < nviManActPos < 100%
The actuator is running to the manual set value.
(Exceptional case is after Power-on or Reset)
The possible conditions can be selected by the
configuration parameter [nciDIConfig].
Type Adjustment of the different functionalities and the explanation of the
shown values.
{Range}
{factory settings}
Definition
SNVT_state
{Bits = 1 or 0} Direct Mode of the Actuator
{1111111111111111} nviActPos = 0% (Stem retract)
nviActPos = 100% (Stem extract)
Status Led blinking : 4 s on / 1 s off
Reverse Mode of the Actuator
nviActPos = 0% (Stem extract)
nviActPos = 100% (Stem retract)
Status Led blinking : 1 s on / 4 s off
SNVT_time_sec Is no value [nviActPos], in a certain time
frame [nciMaxRcvTime] received, the
{0...6553 sec}
actuator will run to the position defined in
[nciDefaultOutput].
{0}
This is called a heartbeat control or
Only integer values are
watchdog function.
accepted and numbers
after a comma will be
ignored.
5 (8)
Explanation
The actuator can be operated manually.
To have most accuracy a
synchronization to the completely retract
position has to be done.
The watchdog [nciMaxRcvTime] is
operating in the background (if selected).
The manual operation has in each case
a higher priority than the received
actuating signal [nviActPos]. After
changing the value for manual operation
[nviManActPos] to [INVALID] the
actuator is running according to the
received values of [nviActPos].
Received values below 0% are
calculated like 0% and values over 100%
will be calculated with 100%. The only
exception is the value 163.835 =
[INVALID]. Is this value received, the
actuator drives to the safety position
which is defined in [nciDefaultOutput].
The received values are never
overwritten by the software of the
actuator.
A detailed description is made in the
Selection of Digital Input Usage
section. Actual state of the sensor,
connected to the digital input (e. g.
window-contact or dewpoint-sensor).
Explanation
Inverse the direction of action
1111111111111111= Direct
0000000000000000= Reverse
Watchdog for the Controller /
Actuator supervision
[nciMaxRcvTime] = 0
Watchdog is deactivated
[nciMaxRcvTime] =
for example 60 [sec]
Watchdog expires, if for 60
seconds no new value is
received on [nviActPos]. The
actuator will run to the position,
defined in the configuration
parameter [nciDefaultOutput].
0-003-1902-0 (GB)