Measurement Computing DAQFlex - Manual (Page 25)

DAQFlex Message-based Firmware Specification Hardware Reference – USB-1208FS-Plus
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Hardware features
 8 single-ended (0 to 7), 4 differential (0 to 3) analog input channels
o Analog input ranges:
Single-ended mode: ±10V
Differential mode: ±20V, ±10V, ±5V, ±4V, ±2.5V, ±1.25V, ±1V, ±1.25V
o
Sampling rate: 50 kS/s max rate
o Channel-gain queue: Up to eight unique, ascending elements; one gain element per
channel.
o Resolution: 12-bit differential mode, 11-bit single-ended mode.
 2 analog output channels. The analog output range is 0 V to 5 V.
 16 DIO configured as two 8-bit ports. Each port is configurable for input or output.
 External digital trigger
 Bidirectional external clock
 32-bit event counter
 Bulk transfers:
o The bulk in max packet size is 64 bytes.
o The bulk transfer size must be a multiple of the USB maximum bulk packet size.
o Bulk transactions are complete when a packet is sent that is less than the max packet size.
When sending an integer multiplier of the max packet size of data during a transaction, include
an empty packet to indicate the end of the transaction.