User's Manual

User Guide
WherePort III User Guide D948 Rev B
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3.5 Sequencing
WherePorts that have been connected electronically can also operate in the sequence
mode. Sequenced WherePorts do not transmit at the same time. The first WherePort
sends its message and then shuts off its field while the next WherePort in the sequence
sends its message. The number of times each WherePort sends its message is set using
the CMCn command. The number of WherePorts in the chain is set using the CMWn
command. See Figure 16 through Figure 18.
The master WherePort LED in a group of sequenced WherePorts is green when
active. The slave WherePort LEDs are yellow when they are active. The LEDs are all off
when the WherePorts are not active.
Figure 16 Mode 1
One WherePort is active at a time. A master and two slaves are
shown. WhereWand WPSeq Count (or RS232 CMWn) = 2.
Master WP #1
Slave WP #2
Slave WP #3
Active
Inactive