Please, always provide your IM version and platform when asking questions, since syntax may differ. Also provide your exact command line and if possible your images.
See the top-most post in this forum "IMPORTANT: Please Read This FIRST Before Posting" at
http://www.imagemagick.org/discourse-se ... f=1&t=9620
If using Imagemagick 7, then see
http://imagemagick.org/script/porting.php#cli
______
Best if you post your PSD file to some free hosting service that won't change the format and put the URL here.
If we assume you actually have more than one layer, then your command should convert from layered PSD to multi-paged TIFF. Imagemagick does not support layered TIFFs at this time as far as I know.
For example:
identify test.psd
test.psd[0] PSD 1600x1600 1600x1600+0+0 8-bit sRGB 12.2404MiB 0.000u 0:00.000
test.psd[1] PSD 785x1603 785x1603+407+0 8-bit sRGB 12.2404MiB 0.000u 0:00.000
test.psd[2] PSD 1600x1600 1600x1600+0+0 8-bit sRGB 12.2404MiB 0.000u 0:00.000
test.psd[3] PSD 698x1359 698x1359+451+137 8-bit sRGB 12.2404MiB 0.000u 0:00.000
test.psd[4] PSD 698x1358 698x1358+451+138 8-bit sRGB 12.2404MiB 0.000u 0:00.000
test.psd[5] PSD 666x1343 666x1343+467+148 8-bit sRGB 12.2404MiB 0.000u 0:00.000
test.psd[6] PSD 698x1358 698x1358+451+138 8-bit sRGB 12.2404MiB 0.000u 0:00.000
test.psd[7] PSD 666x1343 666x1343+467+148 8-bit sRGB 12.2404MiB 0.000u 0:00.000
convert test.psd test.tif
identify test.tif
test.tif[0] TIFF 1600x1600 1600x1600+0+0 8-bit sRGB 28.9295MiB 0.020u 0:00.009
test.tif[1] TIFF 785x1603 785x1603+407+0 8-bit sRGB 28.9295MiB 0.000u 0:00.000
test.tif[2] TIFF 1600x1600 1600x1600+0+0 8-bit sRGB 28.9295MiB 0.000u 0:00.000
test.tif[3] TIFF 698x1359 698x1359+451+137 8-bit sRGB 28.9295MiB 0.000u 0:00.000
test.tif[4] TIFF 698x1358 698x1358+451+138 8-bit sRGB 28.9295MiB 0.000u 0:00.000
test.tif[5] TIFF 666x1343 666x1343+467+148 8-bit sRGB 28.9295MiB 0.000u 0:00.000
test.tif[6] TIFF 698x1358 698x1358+451+138 8-bit sRGB 28.9295MiB 0.000u 0:00.000
test.tif[7] TIFF 666x1343 666x1343+467+148 8-bit sRGB 28.9295MiB 0.000u 0:00.000