Scanner Status Requests; Table 11-3 Ms-820 Scanner Status - Microscan MS-820 User Manual

Scanner Status Requests

Scanner Status Requests
<?> Scanner Status Byte
The scanner responds to a status request
example <?/22>. To determine the status:
1. Look up the binary conversion in
For example, the first 2 in binary would be
through 0; the second 2
2. Next, enter your binary values in
"Binary" column next to the appropriate bit.

Table 11-3 MS-820 Scanner Status

Bit Binary Scanner Status
0 0 Command error detected
1 1 Command received
2 0 Communication error detected
3 0 Flash sector unprotect failure
4 0 Host/Aux port buffer overflow
5 1 Scanner is in a read cycle
6 0 Software Watch dog reset
7 0 Hardware Watch dog reset
3. Under "Binary," interpret 1s as true and the 0s as not
true. For example, bit 1 has a
indicating "Command Received." Bit 5 is also a
cating that the "Scanner is in a read cycle."
<?1 > Extended Status
The scanner responds to an extended status request
with several fields, for example: <?/F><?1/35-338200-
12,35-338201-14,476C,33,33>.
These represent: the status byte discussed above, the boot part number (35-
338200-12), the application part number (35-338201-14), the fpga part number
(5-559001-18), flash checksum (476C), current RAM parameter checksum (33),
and flash parameter checksum (33).
<K?> Configuration Command Status
Returns the current status of all configuration commands.
11-14
MS-820 Industrial Bar Code Scanner User's Manual
<?> with a two character hex value, for
table 11-2.
0 0 1 0 as read from binary digits 3
the binary digits 7 through 4 which is also
table 11-3 in the
1 in the "Binary" column,
1 indi-
<?1>
0 0 1 0.
Table 11-2 Hex
Value to Binary
Conversion
Binary Bit
Digits
Hex
Value
7 6 5 4
3 2 1 0
0 0 0 0 0
1 0 0 0 1
2 0 0 1 0
3 0 0 1 1
4 0 1 0 0
5 0 1 0 1
6 0 1 1 0
7 0 1 1 1
8 1 0 0 0
9 1 0 0 1
A 1 0 1 0
B 1 0 1 1
C 1 1 0 0
D 1 1 0 1
E 1 1 1 0
F 1 1 1 1