Novus N1540 Indicator Manual de usuario descargar pdf (Pagina 2)

0027

iNkL

Defines the indication higher limit of the PV

indication (used to scale the analog inputs).

0028 Reserved Internal use

0029

OFFS

PV Offset (Process Variable).

Range: from

SPLL

SPHL

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 8.

0→

off

; 1→

; 2→

; 3→

dif

;

4→

difL

; 5→

DifH

; 6→

ierr

;

0036

FvA2

0037~0038

Reserved Internal use

0039

kyA1

Alarm 1 Hysteresis. Range: 0 to 9999 (0.00 to

99.99 %)

0040

kyA2

Alarm 2 Hysteresis. Range: same as in

kyA1

0041 Reserved Internal use

0042 Reserved Internal use

0043

tYPE

PV 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

Alarm 1 power-up inhibit.

Range: 0→no; 1→yes.

0051

bLA2

0052 Reserved Internal use

0053 Reserved Internal use

0054 Key

Key simulation.

1→

Key press P

2→

Key press F1

4→ Key press F2

8→ Key press <

9→ Cycle progress

0055~0066

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 first input value currently applied in the

PV input for calibration purposes.

0076

Calibration

PV End

Enter the end input value currently applied in the

PV input for calibration purposes.

0077~0080

Reserved Internal use

0081

FLSH

Enables the top display blinking as a function of

the selected alarm.

0→ Disables

1→ Enables

0082~0085

Reserved Internal use

0086

Rstr

Restores original default calibration. Range: 0 to

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;

1.5 STATUS WORDS

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 - Reserved

bit 1 - Reserved

bit 2 - Reserved

bit 3 - Reserved

bit 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 - Reserved

bit 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-no; 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-no; 1-yes)

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 (ALM1)

1 Output 2 Status (ALM2)

1.6 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

code in case of an invalid request. Response frames containing error codes

have the most significant bit of the Modbus command set (the value 80H is

added to the response).

If a WRITE command sends an out-of-range value to a parameter, the

indicator will clamp the value to the parameter range limits, replying with a

value that reflects these limits (maximum or minimum value allowed for the

parameter).

The indicator ignores broadcast READ commands; the indicator processes

only broadcast WRITE commands.

Error Code Error Description

01 Invalid command or not available

02 Invalid Register Number or out of range

03 Invalid Register Quantity or out of range

Table 3 - Exception response error codes

1 2

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