Sampling Function; Sampling Control - Contec DIO-32DM2-PE User Manual

Sampling function

Sampling control

DIO-32DM2-PE can obtain sampling data at fixed intervals using a sampling clock. The table below
lists the sampling clock, sampling start trigger, and sampling stop trigger factors.
Table 4.1. Sampling clock, starting trigger, stopping trigger
Item
Sampling clock
Internal clock
External clock
Handshake
SC connector
Sampling
Software
starting trigger
Rise of external signal
Fall of external signal
Pattern match
SC connector
Sampling
Software
stopping trigger
Rise of external signal
Fall of external signal
Specified number of items
SC connector
Bus master transfer error
- The product obtains the first sampling data at the falling edge of the sampling clock signal after
input of the sampling start trigger. From then on, the product obtains sampling data in
synchronization with the sampling clock signal.
- The product stops sampling upon input of the sampling stop trigger. The product does not obtain
sampling data when and after sampling is stopped.
DIO-32DM2-PE
Factor
Internal clock (50ns to 107s)
25ns unit
Fall of external clock input (EXTCLK0)
(Maximum frequency response: 10 MHz)
Fall of handshake signal (EXTREQ0)
Clock input from synchronization control connector
(Maximum frequency response: 5 MHz)
Software command
Rise of external start signal (EXTSTART0)
Fall of external start signal (EXTSTART0)
When matched with the specified input pattern
Start signal from synchronization control connector
Software command
Rise of external stop signal (EXTSTOP0)
Fall of external stop signal (EXTSTOP0)
Termination when the specified number of items is reached
Stop signal from synchronization control connector
When FIFO buffer becomes full
Contents
4. Function
41