HP75D and data acquisition unit HP3421A

[hesc]

Dear all,

I try to communicate with my HP 3421A Data Acquisition Control, using a HP75D. In an HP manual 'Programming the HP 3421A with the Hp·71B and the Hp·75D the following program is suggested for the HP75D:

10 ! DCV HP 75/3421A
20 REAL V
30 CLEAR LOOP
40 D=DEVADDR(' :E1')
50 OUTPUT D ; "DCV5"
60 ENTER D ; V
70 DISP V
80 END

However, I get an error message for line 40: error extra characters.
My ASSIGNIO was: Device # 1=':E1'
Furthermore OUTPUT gives a syntax error.

These statements, however, are valid for my HP71B, where
40 D=DEVADDR("HP3421A")
So, I am a little confused. I looked at the manuals, but could not find the clou.
Does anyone of you has experience with the combination HP75C,D and a datalog system?

Thanks,
Henk Schellen