Microscan MS-4X Manuel d'utilisateur Page 43

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Chapter 2 Communications
MS-880 Industrial Long Range Scanner User’s Manual 2-13
2–Communications
Command Processing Mode
Conditions: The conditions for a daisy chain application are
as follows:
1. The master scanner’s trigger must be Serial
or External; the slave scanners’ triggers are
configured for Serial.
2. All scanners are enabled to Daisy Chain
mode.
3. Each scanner’s auxiliary port must be connected to the Host port of
its slave scanner.
4. Each slave scanner in the daisy chain must be set to send its data
no less than 30 mS before its preceding scanner.
5. All but the master scanner must have Postamble enabled and set
to CR (^M) only.
6. All but the master scanner must have their noread messages dis-
abled.
7. If Multilabel is enabled, Multilabel Separator characters must
match in all scanners and Number of Labels must be set to num-
ber large enough to include all the labels it may itself read plus the
number of labels that it will be expected to relay to the host or the
next scanner up the line.
8. Symbology ID enable/disable must be the same in all scanners.
9. All but the master scanner must have their diagnostic warning mes-
sages disabled.
10. Daisy Chain ID Status enable/disable and the number of charac-
ters in Daisy Chain ID must be the same in all scanners.
Definition: Command Processing allows commands to be entered via the aux port
and direct externally triggered read cycle data in one of two ways:
1. If the last command came from the aux port, then externally trig-
gered read cycle data will be output to both the host and the aux
ports.
2. If the last command came from the host port, then externally trig-
gered read cycle data will only be output to the host port.
Usage: Allows user to direct externally triggered read cycle data to the host or
both the host and aux ports.
Serial Cmd: <K101,aux port mode,baud rate,parity,stop bits,data bits,daisy chain
ID status,daisy chain ID>
Options: 5 = Command Processing
Master
Host
Slave
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