TPS Control EN User guide
© Atlas Copco Industrial Technique AB - 9836 5819 01
47
Error messages Possible reasons Actions
Clutch too late The screw is too long
1. Replace with a screw with the
correct length.
Damaged or worn threads
1. Replace faulty screw or compo-
nent.
Missing joint components, such as
a washer
1. Add the missing component
No clutch operation Trigger pressed twice unintention-
ally
1. Release trigger.
2. In TPS Control, press Reset to
end operation
Trigger is released before correct
tightening torque is achieved
1. In TPS Control, press Reset to
end operation
Barcode function
Licensed function
The barcode function is an optional licensed function. To activate the licence for air tools, see section Li-
cence handling.
Description
The barcode function extends the TPS Control by connecting a barcode scanner to a second serial inter-
face and carrying out the job selection with the read-in barcode.
The TPS Control has two RS-232 serial ports to connect the unit to a PC and a barcode reader. Since
both RS-232 interfaces are available on the same Sub-D 9-pin connector, a Y-cable adapter must be used
if the barcode scanner and the PC connection are to be used at the same time. For more information
about cables, see the TPS instructions.
The barcode function allows TPS to read a barcode string with up to 255 characters using the scanner. To
ensure secure identification of the start and end of a code, there are different parameters to set up the
used label format. The system can handle labels with a fixed length or a variable length.
The actual label characters can be prefixed or suffixed by additional STX or ETX character sequences.
The prefix can contain up to 4 characters (STX1-STX4). The postfix can also contain up to 4 characters
(ETX1- ETX4). Prefix and postfix can both be omitted. The individual characters should be entered with
their ASCII code. In case of a variable control length, an ETX sequence must be defined, so that the end
of the label data can be detected.
With many scanners, the STX sequence is empty and the ETX sequence consists of a CR-LF (Carriage
Return, Line Feed) sequence. The CR, for example, has the ASCII code 13 and the LF the ASCII code 10.
The connected barcode scanner sends the read-in label automatically to the TPS Control.
For example, suppose you scan a label with variable length, no prefix and one postfix character (CR, car-
riage return = 13 decimal).
This will be transmitted by the scanner as
6159326580:10D1762186<CR>
The CR character is not part of the barcode, but is instead generated by the scanner. Typically, the scan-
ner can be set up to have specific prefix and/or postfix characters.
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