4 status words, 5 exception responses – error conditions – NOVUS N1040i Indicator User Manual

Page 2

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0029

OFFS

PV offset.
Range: from iNLL to iNkL.

0030

DP.PO

PV decimal point position

Range: 0 to 3

0→X.XXX; 1→XX.XX; 2→XXX.X; 3→XXXX

0031

SP.A1

Alarm 1 Setpoint.

0032

SP.A2

Alarm 2 Setpoint.

0033

Reserved Internal use.

0034

Reserved Internal use.

0035

FvA1

Alarm function. Range: 0 to 6
0→off; 1→lo; 2→ki; 3→dif;
4→difL; 5→Difk; 6→ ierr;

0036

FvA2

0037~0038 Reserved Internal use.

0039

kyA1

Alarm 1 hysteresis. Range: 0 to 9999

0040

kyA2

Alarm 2 hysteresis. Range: 0 to 9999

0041

Reserved Internal use.

0042

Reserved Internal use.

0043

tYPE

Input type.
Range: 0 to 22. See operation manual.

0044

Addr

Communication slave address.
Range: 1 to 247.

0045

bAvd

Communication Baud-Rate. Range: 0 to 7
0→1200;

1→2400;

2→4800;

3→9600;

4→19200; 5→32400;

6→57600; 7→115200.

0046~0049 Reserved Internal use.

0050

bLA1

Blocks the alarm when the indicator is

energized.
When enabled, the alarm will not be active at

power-up, waiting for PV (Process Variable) to

reach a non-alarm situation. From this point on

the alarm will be free to actuate should a new

alarm situation occur.
0→ no initial blocking;
1→ initial blocking enabled.

0051

bLA2

0052

Reserved Internal use.

0053

Reserved Internal use.

0054

Key

Key simulation.
1→ Key press P
2→ Key press

4→ Key press

8→ Key press <
9→ Key press P (go to next level of

parameters.

0055~0059 Reserved Internal use.

0060

retr

Temperature unit. Range: 0 to 1.
8→ 0~20 mA
9→ 4~20 mA

0061~0066 Reserved Internal use.

0067

vnit

Temperature unit. Range: 0 to 1
0→°C; 1→°F.

0068~0074 Reserved Internal use.

0075

Calibration

PV First

Enter the low input value currently applied in the

PV input for calibration purposes.

0076

Calibration

PV End

Enter the high input value currently applied in

the PV input for calibration purposes.

0077

Reserved Internal use.

0078

Reserved Internal use.

0079

rtll

Retransmission low limit of PV.

0088

rtkl

Retransmission high limit of PV.

0081

FLSH

Allows visual signalization of an alarm

occurrence by flashing the indication of PV in

the operation level.
0→ Disables
1→ Enables

0082~0085 Reserved Internal use.

0086

Rstr

Restores original default calibration..
Range: 0 to 1;
0→ DO NOT restore;
1→ Restore calibration.

0087

Reserved Internal use.

0088

Prot

Password protection level.
Range: 1 to 3. Check instruction manual for

further details.

0089

Prty

Serial communication parity. Range: 0 to 2.
0 - >

No parity;

1 - >

Even parity;

2 - >

Odd parity;

1.4 STATUS WORDS

Register

Value format

Status Word 1 bit 0 - Alarm 1 (0- inactive; 1-active)

bit 1 - Alarm 2 (0-

inactive; 1-

active)

bit 2~7 – Reserved
bit 8 - Hardware detection value
bit 9 - Hardware detection value
bit 10~15 - Reserved

Status Word 2 bit 0~4 – Reserved

bit 5 - Alarm 1 power-up inhibit (0-no; 1-yes)
bit 6 - Alarm 2 power-up inhibit (0-no; 1-yes)
bit 7~8 - Reserved
bit 9 - Unit (0-°C; 1-°F)
bit 10~15 - Reserved

Status Word 3 bit 0 – Very low PV conversion:

(0-no; 1-yes)

bit 1 – Negative conversion after calibration:

(0-no; 1-yes)

bit 2 – Very high PV conversion:

(0-no; 1-yes)

bit 3 – Exceeded linearization limit:

(0-noo; 1-yes)

bit 4 – Very high Pt100 cable resistance:

(0-no; 1-yes)

bit 5 – Self zero conversion out of range:

(0-no; 1-yes)

bit 6 - Self span conversion out of range:

(0-não; 1-sim)

bit 7~15 - Reserved

Table 2 - Values of Status Words

Writing to a digital output is only allowed if the corresponding alarm is

configured as “Off”.

Coil Status

Output description

0

Output 1 Status 1 (ALM1)

1

Output 1 Status 2 (ALM2)

1.5 EXCEPTION RESPONSES – ERROR CONDITIONS

The MODBUS RTU protocol checks the CRC in the data blocks received.
Reception errors are detected by the CRC, causing the

indicator

to discard

the packet, not sending any reply to the master.
After receiving an error-free packet, the

indicator

processes the packet and

verifies whether the request is valid or not, sending back an exception error

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