14
Baumer Ident
OIS-P, PC3141/03 Manual
System performance
to commands) and reaction time in the host
computer. The host is assumed to react to
command replies in 10 ms. Both this table and the
Data Tag communication time table must be used
to calculate the total time required at a OIS-P
station, when conducting calculations on passage
frequency.
2.1.2 Host communication times
The host communication can be up to 19.200 baud.
The table below displays the time required for
communication between the Host computer and the
Central Unit. The table presents the time required
to transfer file data and commands (or responses
Table 2.b
Serial communication times host–central unit (EUROX_4 protocol/8/E/1). Send one
file from the host to the control unit and start the writing into the tag.
Transfer speed
File size
bits/sec
10
100
1000
4000
4800
0.16
0.34
2.3
8.5
9600
0.09
0.19
1.13
4.3
19200
0.06
0.11
0.58
2.2
Table 2.c
Communication sequence used for calculation of time values in table 2.b.
Host to central unit
Central unit to host
Time included in table 2.b
PU, 0, <Data>
ACK
X
LD, 0, 2
ACK
X
ST
101
X
ST
_ _ _
_ _ _
_ _ _
ST
001
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