User`s manual

Configuring the Agilent E1330B Digital I/O Module 21
Chapter 2
Combining the Flag Lines
Each port contains a Flag Line, labeled FLG, that can be used to implement
a handshake scheme with a peripheral. For single port operations, the FLG
lines can be used in the factory default setting (no flag lines combined) to
handshake with a peripheral. For multi-port operations with a single
handshake line, you can combine the flag line from multiple ports. The
combined flag lines are physically tied together. An action on any of the
combined flag lines performs that action for all combined flag lines.
Figure 2-5 shows the locations of the flag combining switches and how to
set them. Before setting any flag combine switches, you may wish to read
the discussion regarding allowable port combinations and handshaking in
Chapter 4 of this manual.
Note When using FLG and CTL for handshaking on multiple port operations,
CTL is set for each port sequentially, beginning at the lowest numbered
port.
Figure 2-5. Flag Combine Switches