NOVUS N120/N125 CONTROLLER - Manual (Page 13)

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0691 Psp1 Setpoint 1 of Program 1 (R&S)
Range: same as in psp0.
0692 Psp2 Setpoint 2 of Program 1 (R&S)
Range: same as in psp0.
0693 Psp3 Setpoint 3 of Program 1 (R&S)
Range: same as in psp0.
0694 Psp4 Setpoint 4 of Program 1 (R&S)
Range: same as in psp0.
0695 Psp5 Setpoint 5 of Program 1 (R&S)
Range: same as in psp0.
0696 Psp6 Setpoint 6 of Program 1 (R&S)
Range: same as in psp0.
0697 Psp7 Setpoint 7 of Program 1 (R&S)
Range: same as in psp0.
0698 Psp8 Setpoint 8 of Program 1 (R&S)
Range: same as in psp0.
0699 Psp9 Setpoint 9 of Program 1 (R&S)
Range: same as in psp0.
0700 Reserved Internal use
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 – Alarm 3 (0-inactive; 1-active)
bit 3 – Alarm 4 (0-inactive; 1-active)
bit 4 – Input 0 – I/O 5 (0- inactive; 1- active)
bit 5 – Input 1 – I/O 3 (0- inactive; 1- active)
bit 6 – Input 2 – I/O 4 (0- inactive; 1- active)
bit 7 – Reserved
bit 8 – Hardware detection value
bit 9 – Hardware detection value
bit 10 – Reserved
bit 11 – Reserved
bit 12 – Reserved
bit 13 – Reserved
bit 14 – Reserved
bit 15 – Reserved
Status Word 2 bit 0 – Automatic (0- manual; 1- automatic)
bit 1 – Run (0-stop; 1-run)
bit 2 – Control Action (0-direct; 1-reverse)
bit 3 – Reserved
bit 4 – Auto-tune (0-no; 1-yes)
bit 5 – Alarm 1 power-up inhibit (0-no; 1-yes)
bit 6 – Alarm 2 power-up inhibit (0-no; 1-yes)
bit 7 – Alarm 3 power-up inhibit (0-no; 1-yes)
bit 8 – Alarm 4 power-up inhibit (0-no; 1-yes)
bit 9 – Unit (0-°C; 1-°F)
bit 10 – Reserved
bit 11 – Output 1 status
bit 12 – Output 2 status
bit 13 – Output 3 status
bit 14 – Output 4 status
bit 15 – Output 5 status
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 – Reserved
bit 8 – Reserved
bit 9 – Reserved
bit 10 – Reserved
bit 11 – Reserved
bit 12 – Reserved
bit 13 – Reserved
bit 14 – Reserved
bit 15 – Reserved
Table 2: Values 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 (I/O1)
1 Output 2 Status (I/O2)
2 Output 3 Status (I/O3)
3 Output 4 Status (I/O4)
4 Output 5 Status (I/O5)
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 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
02 Invalid Register Number or out of range
03 Invalid Register Quantity or out of range
Table 3 – Exception response error codes