21
21
english
Function Description
Input buffer, configuration and explanation
Configuration of the
input buffer for one
(1) read/write head
The last byte can be arranged as a 2nd bit header through parametering (default).
Sub- Bit Meaning Function Description
address Name
00Hex BB Ready The BIS Identification System is in the Ready state.
Bit Header HF Head Error Cable break from read/write head or
no read/write head connected.
TO Toggle-Bit Out for read: BIS has new/additional data ready.
for write: BIS is ready to accept new/additional data.
(continued on next
)
Bit No.76543210
Subaddress
00
Hex
= Bit Header BB HF TO IN/KN AF AE AA CP Bit Name
01
Hex
Error Code or Data
02
Hex
Data
03
Hex
Data
04
Hex
Data
05
Hex
Data
06
Hex
Data
... Data
Last byte
2nd Bit Header
(as above)
or Data
Description of
Input Buffer
Please note the
basic procedure on
14 and 29...35
and the examples on
pages
36...53.
C60_2-019_818217_0806-e.p65
22
english22
Function Description
Input buffer, configuration and explanation
Description of
Input Buffer
(continued)
Sub- Bit Meaning Function Description
address Name
00Hex (continued)
Bit Header IN/KN Use the same bit in the bit header. Either IN or KN
may be displayed. Therefore select either Parameter
4th byte, bit 7 = 1 or Parameter 4th byte, bit 6 = 1.
(see
27)
IN Input If the parameter is 4th byte, bit 7 = 1 and 4th byte,
bit 6 = 0, this bit indicates the status of the input.
KN Head No. If the parameter is 4th byte, bit 6 = 1 and 4th byte,
bit 7 = 0, this bit indicates the selected head.
AF Command Error The command was incorrectly processed or aborted.
AE Command end The command was finished without error.
AA Command start The command was recognized and started.
CP Codetag Present Data carrier present within the active zone of the
read/write head.
In addition to the CP bit, the output signal CT-Present is available. This allows
you to process the presence of a Data carrier directly as a hardware signal.
Sub- Meaning Function Description
address
01Hex Error code Error number is entered if command was incorrectly processed
or aborted. Only valid with AF bit!
00
Hex No error.
01
Hex Reading or writing not possible because no Data carrier is present
in the active zone of a read/write head.
(continued on next
)
Please note the
basic procedure on
14 and 29...35
and the examples on
pages
36...53.