Commands
2014-
02
59
Extended commands for IQH2-... and IUH-... read/write heads
With the commands
WriteParam WP
and
ReadParam RD
you can configure the IUH-F117-
V1 read/write head using different parameters. The parameters are described in the manual for
the read/write head.
7.8.1
System Commands
change tag (CT)
Command:
Response:
This command tells the read/write head on the relevant channel which tag type to communicate
with. This setting is stored in the non-volatile memory on the unit.
Command code Command description
Abbre-
viation
190d
BEh
See "read param (RP)" on page 93
RP
191d
BFh
See "write param (WP)" on page 94
WP
Byte
Contents
Bit no.
7
6
5
4
3
2
1
0
Byte 0
1)
Telegram length, high byte
0
0
0
0
0
0
0
0
Byte 1
1)
Telegram length, low byte
0
0
0
0
0
1
1
0
Byte 2
Command code (04h)
0
0
0
0
0
1
0
0
Byte 3
Reserved/Channel/Toggle bit
0
0
0
0
<Channel>
<T>
Byte 4
Tag type in ASCII
<TagType> (high byte)
Byte 5
Tag type in ASCII
<TagType> (low byte)
1)
This byte is only used with the TCP/IP and MODBUS TCP/IP protocol.
Byte
Contents
Bit no.
7
6
5
4
3
2
1
0
Byte 0
1)
Telegram length, high byte
0
0
0
0
0
0
0
0
Byte 1
1)
Telegram length, low byte
0
0
0
0
0
1
1
0
Byte 2
Command code (04h)
0
0
0
0
0
1
0
0
Byte 3
Reserved/Channel/Toggle bit
0
0
0
0
<Channel>
<T>
Byte 4
Status
<Status>
Byte 5
Reply counter
<ReplyCounter>
1)
This byte is only used with the TCP/IP and MODBUS TCP/IP protocol.
