Scan-Mode - Feig Electronic OBID i-scan ID ISC.PR101 Manual

®
OBID i-scan

1.3. Scan-Mode

In this operation-mode the Reader autonomously sends out data to the host as soon as a Trans-
ponder is within the detection range and valid data could be read.
In Scan Mode the contents of the message block (UID, data block) can be adapted to each user-
application. Scan mode is available via the asynchronous Interface and the USB Interface.
If an USB-Reader is used in scan mode, the reader sends its data automatically over the HID interface
of the operating system. In this case, you cannot catch the data with the FEUSB.DLL or any other li-
braries. The reader works like a keyboard. (see also:
The Reader starts the output of the protocol block as soon as all required data have been read cor-
rectly from the Transponder. If the number of transmitted user data is too large, only the maximal
number of transmitted data will be sent plus the end character.
Scan-Mode via asynchronous interface:
The data will be sent out depending on their configuration according to the following scheme,
the sequence of which cannot be changed.
Depending to the configuration and the number of Transponders in the detection range of the
Reader the transmitted protocols have a different format.
Example 1:
One Transponder in detection range and UID and data block should be read:
PR
Example 2:
3 Transponder in detection range only UID should be read:
PR
Example 3:
3 Transponder in detection range only data block should be read:
PR
Example 4:
2 Transponder in detection range UID and data block should be read:
PR
PR: Com-Prefix (optional)
UID: Serial-Number. (fix)
data: data blocks (free programmable)
SC Separation character (optional)
EC End character (optional)
FEIG ELECTRONIC GmbH
System-Manual
SC UID SC
protocol block
protocol cycle
SC UID1 EC
SC data1 EC data2
SC UID1 SC
Page 14 of 131
3.7. CFG6: Scan-Mode1).
data EC
t + t
s r
UID2 EC UID3
EC data3
data1 EC UID2
ts: SCAN-LOCK-TIME
tr: time to the next new Transponder reading
ID ISC.MR/PR/PRH101
PR SC UID
EC
EC
SC data2 EC
H60301-3e-ID-B.doc