How to interpret TCO driver ID (IO155-158) and CAN Driver ID (IO126-129), as full driver card numbers received from 2 IOs should be merged and the outcome should be in ASCII format.
Most of the problem comes when a user misses merging IOs, so this article provides a slight explanation of how it’s done.
126 CAN first driver ID
127 CAN first driver ID
128 CAN second driver ID
129 CAN second driver ID
155 TCO first driver ID
156 TCO first driver ID
157 TCO second driver ID
158 TCO second driver ID
Combination goes accordingly:
126+127 ; 128+129 ; 155+156 ; 157+158 = Driver Card number in ASCII.
RAW packets of the device (in HEX as an example let’s pick the following):
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
You can parse down the packet to get the needed IO values received from the device. Users that have access to protocols, can use the parser:
https://doc.ruptela.com/articles/#!protocol-publication/parser
If everything is alright with the record, you will find your needed IO parameters, they are in HEX and Decimal:
So to receive an actual number, you need to combine both HEX values and convert them to ASCII (or an alternative way is the first convert from decimal to hex separately for each parameter and then combine both HEX values and convert to ASCII).
IOID: 155 IO value: [3030303030303132] 3472328296227680562
IOID: 156 IO value: [3031373937303032] 3472617506557931570
It means that HEX IO155 (3030303030303132) + IO156 (HEX 3031373937303032) = 30303030303031323031373937303032
With the help of a converter from HEX to ASCII (you can use the following: https://www.rapidtables.com/convert/number/hex-to-ascii.html) you can easily get ASCII full number (notice, that in the following tool, Character encoding should be selected as ASCII):
Outcome 0000001201797002 will be the driver's card number.