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Software for the synchronization of axes - Kollmorgen

Software for the synchronization of axes - Kollmorgen

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SOCAPEL SA SOFTWARE FOR SYNCHRONIZATION OF AXES 024.8068.A6. STATUS BYTES AND MASKS6.1 GENERALThe general condition <strong>of</strong> <strong>the</strong> ST1 operation can be observed by looking at four status byteswhich summarizes <strong>the</strong> conditions <strong>of</strong> <strong>the</strong> unit. Each piece <strong>of</strong> in<strong>for</strong>mation is assigned to one bit.The fault indicating bits are latched. These bits can trigger an interrupt in <strong>the</strong> fault handlingroutine <strong>of</strong> <strong>the</strong> ST1 digital motion controller. Those bits which simply indicates a state orcondition are not latched.The status bytes are called STATA, STATB, STATC and STATD. Figure 6.1 shows <strong>the</strong>numeration <strong>of</strong> <strong>the</strong> corresponding bits, bytes and words.bit #MSB7 6 5 4 3 2 1 0 7 6 5 4 3 2 1 0LSBbyteSTATASTATBSTAT1, address 128 (hexa : 80)bit #7 6 5 4 3 2 1 0 7 6 5 4 3 2 1 0byteSTATCSTATDSTAT2, address 129 (hexa : 81)Figure 6.1 : Status bytes.Those status bits which are significent while <strong>the</strong> boot program is running, or whiledownloading a s<strong>of</strong>tware are marked with a " * " . (see also § 4.4).25

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