Support
Support
Applications
General purpose PID control
2012-11-19
The FBs-PLC provides a general purpose PID control function which compares the process variables read from analog input (AI) with the preset values defi ned by the user the FBs PLC performs PID calculations according to the proportional band (P), integral constant (I) and derivative constant (D). An output control value is obtained from above execution and is controlled through the analog output (AO) to control process within the range specifi ed by user. This feature can be applied for smooth precise control such as fl ow, pressure and level control.
High-speed interrupt
2012-11-19
An FBs-PLC can have up to 16 points of external interrupt inputs. The interrupt can be activated by the change of input status which can be positive edge/negative edge or both edges. When using the input interrupt function high speed operations can be detected on the input which would normally be missed on a normal I/O scan.
High-speed pulse width modulation
2012-11-19
he FBs-PLC provides 4 points hardware high-speed pulse width modulation output, with a resolution of 0.1% (for frequency 72Hz~18.432KHz) and 1% (for frequency 720Hz~184.32KHz), respectively. With high speed hardware, precision and stability, the FBs-PLC can easily achieve fine temperature control, proportional valve control, and simple yet practical low cost D/A outputs.
NC position control
2012-11-19
The High-speed pulse output (HSPSO) of the FBs-PLC can perform up to 4 axes NC servo or stepping position control. With the accelerating and decelerating function, it is easy to achieve smooth and precise multi-zone position control. If coordinated with the built-in HHSC feedback, the FBs-PLC can perform closed loop control to compensate the wear, aging and unconformity of components. The FBs-PLC also provides a position control language, which when used with the convenient instruction in the ladder diagram, can facilitate the implementation of precise position control.
High speed timers
2012-11-19
The FBs-PLC has a special design 0.1mS time base high-speed timer that can provide a timer with 0.1mS resolution and real-time interrupt capability. Compared with other brands of PLC’s in this class that have a resolution of just 1mS including error in scan time, the FBs-PLC is more than 10 times as precise. The FBs-PLC can easily handle precision timing or speed detection applications. The FBs-PLC has one 16-bit 0.1mS high-speed timer and 4 sets of 32-bit 0.1mS high-speed timer.