ibaFOB-SDexp
Manual
Issue 1.1
17
7.1.2
SD-TDC-lite reception channels
Note
Though the current firmware version provides the reception channels, they are not yet
supported by iba-Software.
7.1.3
Technostring
The Technostring (TS) is a slow process data channel with which additional non-cyclical
alphanumeric data that accompany the measurement can be transmitted to ibaPDA. The
TS runs independently of the PDA data channels.
The TS channel must be projected on the control side. The user has to make sure that
the TS is transmitted to ibaPDA in case of a change or in a slow cycle (>= 1 second).
The TS channel is queried each second by ibaPDA.
Note
Only 1 TS is possible for each rack link. However, beyond the rack link you have the
possibility of transmitting other technostrings, e.g., via TCP/IP or serial interface.
The channel characteristics are defined as follows:
ibaPDA-Technostring
Channel name
PDA_ASCI
Channel length
512 Byte
Data format
Unformatted alphanumeric character string
Channel mode
Handshake
Use
Transmission of strip attributes, technology and material related
data before entry of a new strip in the rolling train.
Cycle
1 second
Note
When using the CTV function block, you have to apply all telegram data to the virtual
connection or put the telegram together from partial telegrams.
When using the CTV_P function block, you only have to enter the telegram length 512
bytes at the NBY connector (see example below).
Note
Make sure that non-printable characters are used to indicate the end of the string, e.g.
0x0D ('CR') or 0x00 ('NUL').
