Reader Status Requests - Microscan MS-3 Manual Book

Chapter A

Reader Status Requests

<?> Reader Status Byte
The reader 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 A-12 Quadrus EZ Status
Bit Binary
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 Reader 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 "Reader is in a read cycle."
<?1 > Extended Status
The reader responds to an extended status request
with several fields.
These represent, in order: the status byte as discussed
above, the boot part number, application part number, fpga part number, Flash check-
sum, and Flash parameter checksum.
<K?> Configuration Command Status
Returns the current status of all configuration commands.
MS-3 Laser Scanner User's Manual
<?> with a two character hex value, for
table A-21.
0 0 1 0 as read from binary digits 3
the binary digits 7 through 4 which is also
table A-22 in the
Reader Status
1 in the "Binary" column,
1 indi-
<?1>
Appendices
0 0 1 0.
Table A-11 Hex
Value to Binary
Conversion
Binary
Bit Dig-
Hex
its
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
A-15