Microscan MS-810, User Manual

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Protocol Commands
MS-810 Industrial Scanner User’s Manual
3-7
3–Ser
ial
Conf
ig.
Example:
To select an unpolled ACK/NAK User Defined protocol with LRC disabled,
send <Kf0><Kf6,,,,,,,^F,^U><Kc0> .
1
ACK and NAK will be displayed in the
menu.
Note: Address, can be assigned any ASCII character except a null. Control characters are
used to define RES through NAK (except Address). Table 3-2 lists the control characters
used for these data fields. (Refer to Table A-4, “ASCII Table with Control Characters,” on
page A-10 for more information.)
Format: < Kf protocol, RES, address, REQ, EOT, STX, ETX, ACK, NAK>
Example:
To select an unpolled ACK/NAK User Defined protocol with LRC disabled,
send
<Kf0><Kf6,,,,,,,^F,^U><Kc0>
.
2
ACK and NAK will be displayed in the
menu.
3
Note: Address, can be assigned any ASCII character except a null. Control characters are
used to define RES through NAK (except Address). Table 3-2 lists the control characters
1. <Kf0> nulls the address and <Kc0> disables LRC. A control character, although conventionally
represented here and in the ASCII table on page A-10 as two characters (^F or ^U, etc.), is actu-
ally a single ASCII character that is entered on the keyboard by holding down the control key
while pressing the desired letter.
protocol:
7 = User Defined Multidrop
2. <Kf0> nulls the address and <Kc0> disables LRC.
3. A control character, although conventionally represented here and in the ASCII table on page
A-10 as two characters (^F or ^U, etc.), is actually a single ASCII character that is entered on
the keyboard by holding down the control key while pressing the desired letter.
Explanation of the From Host option
Suppose STX, ETX and EOT are defined in the MS-810, the trigger counter is currently T/
00000, and you want to send the Trigger Counter Request command to the scanner.
Defined Protocol:
STX, ETX, EOT
Trigger Counter Status: T/00000
Host Command Request: <T> (Trigger Counter Request Command)
The command string format from the host would depend on the From Host setting.
If From Host is disabled,
<T> (Trigger Counter
Request command) would be the required format
from the host to cause the scanner to return STX T/
00000 ETX EOT. However, if From Host is enabled,
the required host command string would be
STX
<T> ETX EOT
to receive the same response
from the scanner. In either case the data string
returned by the scanner always includes the defined
protocol. In this example, that returned data would
be
STX T/00000 ETX EO
T.
MS-810
HOST
<T>
STX T/00000
ETX EOT
MS-810 HOST
STX <T> ETX EOT
STX T/00000
ETX EOT
From Host Disabled
From Host Enabled