Thanks for that Bob. The bit I was confused about is Skimask's statement "MyVars var Byte[8] sets aside 9 bytes, index 0 (zero) is also valid"
I thought I understood that MyVars VAR BYTE[8] had 8 elements numbered 0 to 7 (Page 26 PBP new manual). If that were the case then the 'clearance' counter ought surely to be 0 to 7 not 0 to 8, which would be invalid.
Adrian
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