4. Functions
CNT-3208M-PE
41
4.
Functions
This chapter describes the functions of the CNT32-8M(PCI).
Each function described here can be easily set and executed by using the bundled API driver library.
For details, refer to HELP after installing API-PAC(W32).
Types and Operations of Pulse Signals
Types of pulse signals
The following types of pulse signals (operation modes) can be set.
-
2-phase Input, Synchronous Clear, Multiply by 1
-
2-phase Input, Synchronous Clear, Multiply by 2
-
2-phase Input, Synchronous Clear, Multiply by 4
-
2-phase Input, Asynchronous Clear, Multiply by 1
-
2-phase Input, Asynchronous Clear, Multiply by 2
-
2-phase Input, Asynchronous Clear, Multiply by 4
-
Single-phase Input, Asynchronous Clear, Multiply by 1
-
Single-phase Input with Gate Control Attached, Asynchronous Clear, Multiply by 1
-
Single-phase Input with Gate Control Attached, Asynchronous Clear, Multiply by 2
2-phase Input
Two-phase input is to input two pulses of phase-A (the leading signal) and phase-B (the trailing signal)
which differ by 90
°
. When phase-Z (the reference position signal) is available, the counter can be
cleared with 2-phase pulse input.
Figure 4.1. Example counting during 2-phase input
Phase-A
(Phase-A/UP)
Phase-B
(Phase-B/DOWN)
Phase-Z
(Phase-Z/CLR)
Count value
0
1
2
* Count operation for incremental counting in the CW direction.
When d
ecremental counting in the CW direction is set, the board performs
decremental counting at the rising edge of the phase-A signal.
* The minimum phase difference between phases-A and B is 25 nsec.
Counting is not performed normally if the phase difference is less than 25 nsec.
Phase-A difference of 25 nsec is required.
Summary of Contents for CNT-3208M-PE
Page 7: ...vi CNT 3208M PE ...
Page 15: ...1 Before Using the Product 8 CNT 3208M PE ...
Page 30: ...2 Setup CNT 3208M PE 23 3 Click on the End button to finish condition setting Click on End ...
Page 35: ...2 Setup 28 CNT 3208M PE ...
Page 71: ...4 Functions 64 CNT 3208M PE ...
