Siemens A0710 fault code meaning
Siemens / A0710
Series: G120-CU240B-E-2
The communication port on the control unit may be faulty
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Meaning:
Possible causes
Source: Getting Started Guide G120 Control Units CU240E P30
Series: MM420
CB communication error
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Meaning:
Possible causes
Source: 420 P68
Series: MM430, MM440
CB communications error
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Meaning: Communication interruption with CB (communication board).
Possible causes
Source: Parameter List_ MICROMASTER 430 P263; Parameter List_ MICROMASTER 440 P322