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6ES72317PC220XA0,EM 231, 4AE, 15 BIT
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【SIEMENS】6ES7231-7PC22-0XA0,
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【SIEMENS】6ES72317PD220XA0,
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【SIEMENS】6ES72317PD220XA8,
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6ES72317PF220XA0,EM 231, 8AI, +/-80 MV, 15 BITS
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【SIEMENS】6ES7231-7PF22-0XA0,
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【SIEMENS】6ES72320HB220XA0,
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【SIEMENS】6ES72320HB220XA8,