It appears that when you use the binary upload command [SOURce[1|2]:]DATA:ARBitrary[1|2]:DAC <arb_name>, {<binary_block>|<value>, <value>, . . .}, integers that end in hexidecimal 80 to 9F do are clamped to a value corresponding to ending in hex 50. The comma delimited upload command works fine but its limited to 64k samples. You can see this glitch if you upload a simple 256 sample arb waveform that is a ramp from zero.
This makes this instrument useless for me as I need to upload large arb waveforms over the LAN