IDEC MicroSmart - Manual (Page 132)

5: S PECIAL F UNCTIONS
5-12 « FC4A M ICRO S MART U SER ’ S M ANUAL »
Programming WindLDR (Slim Type CPU Modules)
1. From the WindLDR menu bar, select Configure > Function Area Settings. The Function Area Settings dialog box
appears.
2. Select the Special Input tab.
3. When using high-speed counter HSC1 or HSC4, select Two/Single-
phase High-speed Counter in the Group 1 or 4 pull-down list box.
When using high-speed counters HSC2 or HSC3, select Single-
phase High-speed Counter in the Group 2 or 3 pull-down list box.
The High-speed Counter Settings dialog box appears.
Mode
Select Two-phase High-speed Counter or Single-phase High-speed Counter for HSC1 or HSC4. Only Single-phase
High-speed Counter is available for HSC2 and HSC3.
Enable Comparison
Click the check box to enable the high-speed counter comparison output, and specify an output number available on the
CPU module in the Comparison Output field. When current value overflow or underflow occurs (two-phase high-speed
counter) or when the preset value is reached (single-phase high-speed counter), the specified comparison output is turned
on and remains on until a comparison output reset special internal relay (M8030, M8034, M8040, or M8044) is turned on.
Use HSC Reset Input
Click the check box to enable high-speed counter reset input I2 for HSC1 or I5 for HSC4 only. When input I2 or I5 is
turned on, the current value in D8045 or D8051 is reset depending on the high-speed counter mode.
Since these settings relate to the user program, the user program must be downloaded to the MicroSmart after changing
any of these settings.
Two-phase
The current value is reset to the value stored in D8046 or D8052 (high-speed counter reset value). The
two-phase high-speed counter counts subsequent input pulses star ting at the reset value.
Single-phase
The current value is reset to 0. The value stored in D8046 or D8052 (high-speed counter preset value)
at this point takes effect for the subsequent counting cycle.