| ARINC 429 triggering and decoding |
| Protocol configuration |
source |
| R&S RTA4004 |
channel 1, channel 2, channel 3, channel 4, logic channels from D15 to D0 (with R&S RTA-B1 option) |
| bit rate |
high (100 kbit/s), low (12.5 kbit/s), or user-defined in range 10 kbit/s to 1 Mbit/s |
| polarity |
A leg, B leg, normal, inverted |
| label list |
associate numeric label with symbolic ID; optional definition of ARINC word format in terms of availability of label-specific SDI and SSM fields |
| auto threshold setup |
assisted threshold configuration |
| Trigger |
trigger event setup |
word, label, label and data, error condition, transmission interval |
| word setup |
word start, word stop |
| label setup |
label (condition =, ≠, ≥, ≤, in range, out of range) |
| data setup |
data pattern up to 23 bit long (condition =, ≠, ≥, ≤, in range, out of range); data bit offset; SDI (00,01,10,11); SSM (00,01,10,11); label list can be used to determine availability of trigger properties SSM and SDI for given label value |
| error condition setup |
any combination of coding error, parity error, gap error |
| transmission interval setup |
label (condition =); SDI (optional); time interval (condition >, <, in range, out of range) |
| Decode |
display signals |
bus signal, logic signal or both; symbolic ID in bus signal when label list in use |
| color coding |
word begin, word end, label, SDI, data, SSM, parity, error |
| displayed format of data |
hex, decimal, binary, ASCII |
| frame table |
decode results displayed as tabulated list, errors highlighted in red; frame navigation; data export as CSV file; column with symbolic ID when label list in use |
| Search |
search events |
word, label, label and data, error condition |
| word setup |
word start, word stop |
| label setup |
see trigger settings for “label setup” |
| data setup |
see trigger settings for “data setup” |
| error condition setup |
coding error, parity error, gap error, any |