A comparison between the variables in the Configurator and ONSPEC PID Record is listed in the following:
Variables in Control Block and Faceplate Menu
The controller tuning parameters that each controller may have. They allow you to make the controller work for a certain situation. For detailed information, refer to the topic of Controller Algorithm Description Section.
| Configurator | ONSPEC PID Record |
|---|---|
|
|
|
| Block Number | BLO (Control Block No) |
| Sample Interval | SFR (Scan Period) |
| Control ID Number | CID |
| Block Type | None |
| Faceplate Number | ALG |
| Control Block Status | CSS (Control Block Status) |
| SP EUR Index | SID |
| SP Tag | TAG (if defined in ONSPEC) |
| SP Lower Limit Value | SMN |
| SP Upper Limit Value | SMX |
| MV EUR Index | MID |
| MV Tag | TAG (if defined in ONSPEC) |
| MV Lower Limit Value | MLO |
| MV Upper Limit Value | MLO+MSP |
| OP EUR Index | OID |
| OP Tag | TAG (if defined in ONSPEC) |
| OP Lower Limit Value | OLO |
| OP Upper Limit Value | OHI |
| OTV EUR Index | TID |
| OTV Tag | TAG (if defined in ONSPEC) |
| OTV Lower Limit Value | TLO |
| OTV Tag | TAG (if defined in ONSPEC) |
| OTV Lower Limit Value | TLO |
| OTV Upper Limit Value | TLO+TSP |
| Status Word EUI Index | None |
| Process Model No EUI Index | None |
Variables in Control Algorithm Menu
| Configurator | ONSPEC PID Record |
|---|---|
|
|
|
| (Primary) Block Number | BLO (Control Block No) |
| Secondary Block Number | K4 |
| (ALG:100-104 only) | |
| (Primary ) Block Type | None |
| (Primary) Block ALG | ALG (Control Algorithm) |
| Controller Tuning Parameters | |
| 1) ANN | |
| Kr (ANN Response Knob) | KP |
| 2),3),4): PIDs | |
| Kp | KP |
| Ki | KI |
| Kd | KD |
| 5): Ramp | |
| K1 (Ramping Up) | KP |
| K2 (Ramping Down) | KI |
| 6): Integrator | |
| K | KP |
| 7) Lead-Lag | |
| K1 | Kp |
| K0 | KI |
| T1 | KD |
| T0 | K4 |
| 8) Second-Order Filter | |
| K2 | KP |
| K1 | KI |
| T2 | KD |
| T1 | K4 |
| 9) Dead-time | |
| K | KP |
| Tc | Ki |
| Tau | KP |
| 10) Linear | |
| K1 | KP |
| K2 | KI |
| 11) Ratio | |
| K1 | KP |
| K2 | KI |
| K3 | KD |
| 15) Limit | |
| HL | KP |
| LL | KI |
| 12) High Select | |
| 13) Low Select | |
| 14) Middle Select | |
| 16) Loader | |
| (Blocks 12,13,14 and 16 have no tuning parameters.) | |
| High Alarm Limit | XHI |
| Low Alarm Limit | XLO |
| High Alarm Enabled | HAA |
| Low Alarm Enabled | LAA |
| High Alarm Status | Bit 15 of SW |
| Low Alarm Status | Bit 14 of SW |
| System Alarm Flag | Bit 13 of SW |
| Auto/Manual | Bit 12 of SW |
| Reverse/Direct | Bit 11 of SW |
| Remote/Local | Bit 10 of SW |
| Setpoint Tracking | Bit 9 of SW |
| Output Tracking | Bit 8 of SW |
| (SW - Status Word of the block) | |
Internal Variables
The following is a list of the internal variables that you can use ONSPEC Change button to view and change.
| Configurator | Internal Variable |
|---|---|
|
|
|
| Setpoint | BLKSP11 |
| Measured Variable | BLKMV11 |
| Output | BLKOV11 |
| Auto/Manual | BLKAM11 |
| Remote/Local | BLKRL11 |
| Setpoint Tracking | BLKST11 |
| Output Tracking | BLKOT11 |
| Kp | BLKKP11 |
| Ki | BLKKI11 |
| Kd | BLKKD11 |
| K4 | BLKK411 |