About this task
The CheckReader Trace Facility can be activated by setting the service
definition trace attribute value to
yes. An activation
of the console trace causes all the characters (byte sized data) going to
and from the device to be written to the console. Byte values exceeding 32
(in decimal notation) are converted to their ASCII representations. All other
values are shown in hexadecimal notation (each value is appended to "0x" which
indicates a hexadecimal value). Incoming messages are appended to "Rx: " and
outgoing messages are appended to "Tx:".
This facility is designed for debugging
purposes. It may be useful as a tool to verify that there is data interchange
with the device and to verify that the correct protocol sequences are being
followed.