NOVUS N1020 - Manual (Page 2)

0030 dppo
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.
Range: Between spll and spkl for non-differential
alarm or at spkl - spll for differential alarm.
0032 Sp.a2 Alarm 2 Setpoint. Range: same as in spa1.
0033~0034 Reserved
0035 Fva1
Alarm 1 Function. Range: 0 to 8
0→off; 1→lo; 2→ki; 3→dif;4→difl;
5→difk; 6→t..0n; 7→t..End; 8→err;
0036 Fva2 Alarm 2 Function. Range: same as in fua1.
0037~0038 Reserved
0039 Kya1
Alarm 1 Hysteresis. Range: 0 to 9999 (0.00 to
99.99%)
0040 Kya2 Alarm 2 Hysteresis. Range: same as in kya1.
0041~0042 Reserved
0043 type
PV input type
Range: 0 to 9. 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 avto Control Mode. Range: 0→manual; 1→automatic.
0047 rvn Enable control. Range: 0→no; 1→yes.
0048 act Control action. Range: 0→direct; 1→reverse.
0049 atvn
Auto tune enable. Range: 0 to 5
0→FAST; 1→FULL; 2→SELF; 3→ RSLF;
4→TGHT.
0050 Bla1 Alarm 1 power-up inhibit. Range: 0→no; 1→yes.
0051 Bla2 Alarm 2 power-up inhibit. Range: same as in bla1.
0052~0053 Reserved
0054 Key
Key press remote action. Range: 0 to 9
1→ P; 2→ ; 4→ ; 8→ F
0055~0061 Reserved
0062 A1t1
Alarm 1 Time 1. Range: 0 to 6500s
Refer to Table 4 for more details.
0063 A1t2
Alarm 1 Time 2 (in seconds)
Range: same as in a1t1.
0064 A2t1
Alarm 2 Time 1 (in seconds)
Range: same as in a1t1.
0065 A2t2
Alarm 2 Time 2 (in seconds)
Range: same as in a1t1.
0066 sfst
Soft-Start time (in seconds)
Range: 0 to 9999
0067 vnit
Temperature unit. Range: 0 to 1
0→°C; 1→°F.
0068 Reserved
0069 TECO
Timer End Controller Off. Range: 0 to 1
0→ Disabled; 1→ Enable.
0070~0080 Reserved
0081 FLSH
Enables the top display blinking as a function of the
selected alarm. Range: 0 to 1
0→ Disabled; 1→ Enable.
0082 0uT1
Output 1 function. Range: 0 to 4
0→off; 1→Ctrl; 2→A1; 3→A2; 4→A1A2.
0083 0uT2
Output 2 function. Range: 0 to 4
0→off; 1→Ctrl; 2→A1; 3→A2; 4→A1A2.
0084~0085 Reserved
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 5.
Check instruction manual for further details.
0089 PRTY
Serial communication parity. Range: 0 to 2.
0→no parity; 1→ even; 2→ odd;
1.5 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 - Automatic (0- manual; 1- automatic)
bit 1 - Run (0-stop; 1-run)
bit 2 - Control Action 1 (0-direct; 1 reverse)
bit 3 - Reserved
bit 4 - Auto-tune (0-no; 1-yes)
bit 5 - Alarm 1 power-up inhibit 1 (0-no; 1-yes)
bit 6 - Alarm 1 power-up inhibit 2 (0-no; 1-yes)
bit 7 - 8 - Reserved
bit 9 - Unit (0-°C; 1-°F)
bit 10 - Reserved
bit 11 - Output 1 status
bit 12 - Output 2 status
bit 13 - 14 - 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 - Value of Status Words
Writing to an output bit is only possible if the output has no function assigned to it (the
output is configured to OFF in Alarm Cycle).
Coil Status Output description
0 Output 1 Status 1 (I/O1)
1 Output 1 Status 2 (I/O2)
2 Output 1 Status 3 (I/O3)
3 Output 1 Status 4 (I/O4)
4 Output 1 Status 5 (I/O5)
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 controller to discard the packet, not
sending any reply to the master. After receiving an error-free packet, the controller
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.
If a WRITE command sends an out-of-range value to a parameter, the controller 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 controller ignores broadcast READ commands; the controller processes only
broadcast WRITE commands.
Error Code Error Description
01 Invalid Command or inexistent
02 Invalid Register Number or out of range
03 Invalid Register Quantity or out of range
Table 3 – Exception response error codes