N1540 Indicator
NOVUS AUTOMATION
4/5
bla1
bla2
Blocking
Alarm
Alarms Initial Blocking.
YES
enables the initial blocking
NO
inhibits the initial blocking
xya1
xya2
Hysteresis of
Alarm
Alarm Hysteresis. It defines the difference between the
value of PV at which the alarm is triggered and the
value at which it is turned off.
flsh
Flash
It allows signalization of an alarm conditions occurrence
by flashing the indication of PV on the indication
display.
YES
Enables alarm signalization by flashing PV.
NO
Disables the flashing PV.
INPUT CYCLE
Type
Type
Input Type. Selection of the input type, used by the
indicator. Refer to Table 01.
fltr
Filter
Digital Input Filter – Used to improve the stability of the
measured signal (PV). Adjustable between 0 and 20.
At 0 (zero) it means filter turned off and 20 means
maximum filter. The higher the filter value, the slower
is the response of the measured value.
Dp.po
Decimal Point
It determines the position of the decimal point on the
display.
vn
i
t
Unit
It defines the temperature unit to be used:
(
Indication in Celsius.
f
Indication in Fahrenheit.
0ffs
Offset
Parameter that allows the user to make fine
adjustments to the indicated PV value.
i
nll
Input Low
Limit
It defines the lower value of the indication range when
the input types of 0-20 mA, 4-20 mA, 0-50 mV, 0-5 V
and 0-10 V are used.
i
nxl
input High
Limit
It defines the upper value of the indication range when
the input types of 0-20 mA, 4-20 mA, 0-50 mV, 0-5 V
and 0-10 V are used.
bavd
Baud Rate
Baud Rate of the serial communication. In kbps.
1.2, 2.4, 4.8, 9.6, 19.2, 38.4, 57.6 and 115.2
prty
Parity
Parity of the serial communication.
none
Without parity
Even
Even parity
0dd
Odd parity
Addr
Address
Communication Address. A number that identifies the
indicator in the serial communication network, between
1 and 247.
CALIBRATION CYCLE
All types of input are calibrated in the factory. In case a
recalibration is required; it shall be carried out by a specialized
professional. In case this cycle is accidentally accessed, do not
perform alteration in its parameters. The factory calibration can
be restored in the parameter
rstr
.
pass
Password. Entering the Access password. This
parameter is presented before the protected cycles.
See item Protection of Configuration.
(alib
Calibration. Enables the possibility for calibration of
the indicator. When the calibration is not enabled, the
related parameters are hidden.
inL(
Input Low Calibration. Indication of the low scale
calibration signal applied to the input.
ink(
Input High Calibration. Indication of the full scale
calibration signal applied to the input.
rstr
Restore. It restores the factory calibrations of the
input, disregarding any modifications carried out by the
user.
(j
Cold Junction. Temperature of the indicator cold
junction.
Pas.(
Password Change. It allows the definition of a new
access password, always different from zero.
Prot
Protection. Sets up the Level of Protection. See Table
03.
Freq
Frequency. Frequency of the local electrical network.
Sn k
First part of the indicator serial number.
Sn l
Second part of the indicator serial number.
PROTECTION CONFIGURATION
The indicator provides means for protecting the parameters
configurations, not allowing modifications to the parameters values,
avoiding tampering or improper manipulation. The parameter
Protection (
PROt
) in the Calibration level determines the protection
strategy, limiting the access to particular levels, as shown in the table
below.
Protection Level
Protected Levels
1
Only the Calibration level is protected.
2
Input and Calibration levels are protected.
3
Alarms, Input and Calibration levels are
protected.
Table 03 – Levels of Protection of the Configuration
ACCESS PASSWORD
The protected levels, when accessed, request the user to provide the
Access Password for granting permission to change the
configuration of the parameters on these levels.
The prompt
PASS
precedes the parameters on the protected levels.
If no password is entered, the parameters of the protected levels can
only be visualized.
The Access Password is defined by the user in the parameter
Password Change (
PAS.(
), present in the Calibration Level. The
factory default for the password code is 1111.
PROTECTION OF THE ACCESS PASSWORD
The protection system built into the indicator blocks for 10 minutes
the access to protected parameters after 5 consecutive frustrated
attempts of guessing the correct password.
MASTER PASSWORD
The Master Password is intended for allowing the user to define a
new password in the event of it being forgotten. The Master
Password doesn’t grant access to all parameters, only to the
Password Change parameter (
PAS(
). After defining the new
password, the protected parameters may be accessed (and
modified) using this new password.
The master password is made up by the last three digits of the serial
number of the indicator added to the number 9000.
As an example, for the equipment with serial number 07154321, the
master password is 9 3 2 1.
The indicator serial number can be obtained by pressing
for 5
seconds.