Reader is to be skipped. The first digit following the command "A" corresponds to the
highest addressed Readers F thru C and the last digit corresponds to the lowest
addressed Readers 3 thru 0. The most significant bit of each digit corresponds to the
highest addressed Reader of that group. The default mode of the Interface is to include
Readers 0 thru F in its polling loop that is the equivalent of an [AFFFF] assignment.
A simple way to construct the data characters for a desired Reader assignment is to list the desired state
of each Reader, left to right, starting with Reader F (15), with a 1 for an enabled Reader and 0 for one
disabled. Group the 1's and 0's into groups of 4 then replace the 4 binary bits with the equivalent
hexadecimal value from the table below.
0 – 0000 4 – 0100 8 – 1000 C - 1100
1 – 0001 5 – 0101 9 – 1001 D - 1101
2 – 0010 6 – 0110 A – 1010 E - 1110
3 – 0011 7 – 0111 B – 1011 F - 1111
For example, for Readers 0, 1, 2, 3, 4, 5, and B ON, all others OFF, starting with Reader F list the 1's
and 0's:
Reader address: F E D C B A 9 8 7 6 5 4 3 2 1 0
Reader status: 0 0 0 0 1 0 0 0 0 0 1 1 1 1 1 1
Arrange the bits into groups of 4: 0000 1000 0011 1111
Substitute the hexadecimal value: 0 8 3 F
Resulting command for this configuration: [A083F]
The most efficient way to configure less than 16 Readers is to have contiguous enabled Readers starting
with address 0. The Interface generates the Reset pulse after the last enabled Reader and a contiguous
configuration keeps the Interface from generating excess Increment pulses.
A special case of the Assign Command: [A0000] causes the Interface to raise the ENABLE RETURN
signal to a high, cease generating Reader control pulses, and quit searching for Tags. Any other Assign
command will restart the polling sequence.
If an error is detected in an Assign Command, the error will be reported by an Invalid Command
message: "?" and the Reader assignment will remain unchanged.
MODE CONTROL COMMAND - [M#]
Type this: [M#]
This command switches the Interface between its various operating modes.
Mode #1 - [M1] Single Report, Transfer on Receipt
The Interface continually scans for Tag reads via the Reader and transfers the
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