User's Manual

Chapter 2 Function Reference — DIG_SCAN_Setup
© National Instruments Corporation 2-191 NI-DAQ FRM for PC Compatibles
Figure 2-13.
Digital Scanning Output Group Handshaking Connections
For DIO-24 users, the correct W1 jumper setting is required to allow DIG_Block_In and
DIG_Block_Out to function properly. If port 0 is configured as a handshaking output port,
set jumper W1 to PC4; otherwise, set the jumper to PC6. However, if port 0 is configured as
bidirectional, set the jumper to PC2.
Also, if port 0 is configured as bidirectional on a PC-DIO-24, port 1 will not be available.
Port x
1
ACK*
External Device
(last port in portList)
Port x
n
Port
x
2
ACK*
ACK*
OBF*
OBF*
OBF*