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10 - 22 SE955 Integration Guide
Hints for requesting parameter values:
Before forming a PARAM_REQUEST, confirm that the decoder supports the requested parameters. To find out
what parameters are supported, send an 0xFE (request all parameters). The response to this is a
PARAM_SEND which contains all the supported parameters and their values. 0xFE must be in the first position
of the request_data field if used, or it is treated as an unsupported parameter.
Unsupported parameters are not listed in the PARAM_SEND response. Requesting unsupported parameters
has no effect, but can cause delays in responding to requests for valid parameters. See
requests and responses.
Example Requests and Replies
Table 10-7
PARAM_REQUEST message
#ALL
#1, 9C
#All, 1, 9C
#1, 9C, ALL
#4
#ALL - 3 times
#1 -3 times
05 C7 04 00 FE FE 32
06 C7 04 00 01 9C FE 92
07 C7 04 00 FE 01 9C FD 93
07 C7 04 00 01 9C FE FD 93
05 C7 04 00 04 FF 2C
07 C7 04 00 FE FE FE FC 34
07 C7 04 00 01 01 01 FF 2B
Response PARAM_SEND message
0D C6 00 00 FF 01 00 02 01 9C 07 E6 63 FC 3E
09 C6 00 00 FF 01 00 9C 07 FD 8E
0D C6 00 00 FF 01 00 02 01 9C 07 E6 63 FC 3E
09 C6 00 00 FF 01 00 9C 07 FD 8E
05 C6 00 00 FF FE 36
0D C6 00 00 FF 01 00 02 01 9C 07 E6 63 FC 3E
0B C6 00 00 FF 01 00 01 00 01 00 FE 2D
Table 10-7
for example
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