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IDENT-M System V • TCP/IP connection
Description of commands
Zumutbare Änderungen aufgrund technischer Verbesserungen vorbehalten.
Copyright Fuchs, Printed in Germany
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10.29 <L1> Read data with Function 1
This corresponds to the Read data command. The execution of the command does
not take place, however, until after the initiator has been dampened. After that, the
system attempts to read to a data carrier until this attempt has been successful or the
command is aborted.
If a status message is present, the Control Interface unit responds with an error mes-
sage that is described in Section 10.2 on page 27 .
As long as this command is active, a status telegram is sent once every
2 seconds.
Command:
Designation
Bit number
7
6
5
4
3
2
1
0
Byte 0
X4
X3
X2
X1
K3
K2
K1
-
Byte 1
‚L‘ (0x4C)
Byte 2
‚1‘ (0x31)
Byte 3
Destination address high byte
Byte 4
Destination address low byte
Byte 5
Number of bytes high
Byte 6
Number of bytes low
Response for processing with no errors
Designation
Bit number
7
6
5
4
3
2
1
0
Byte 0
X4
X3
X2
X1
K3
K2
K1
-
Byte 1
‚L‘ (0x4C)
Byte 2
‚1‘ (0x31)
Byte 3
Status
Byte 4
I1
T1
S2
S1
EC4
EC3
EC2
EC1
Byte 5
Data
Byte 6
- „ -
- „ -
- „ -
- „ -
- „ -
- „ -
- „ -
Byte n
- „ -