ABB ATS Annunciator Manuale di avvio rapido - Pagina 7
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Information
MODBUS Networks
Networks may be either Singly Terminated or Doubly Terminated.
The Annunciator has two separate MODBUSs.
• ATS MODBUS connects to ATSs. - 8 max.
• PC MODBUS connects a PC to Annunciators - max 32.
PC
AA
AA
ATS
ATS
ATS
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Network Termination
Cables:
• 300V rated insulation - Belden 9463
• 600V rated insulation - Belden 3072F
Resistors: 105Ω
Singly Terminated Network (Daisy Chain)
Maximum Total Network Cable Length: 500 M (1,640 ft)
AA
ATS
ATS
ATS
ATS
ATS
PC MODBUS Network - 1 per network
Annunciators - max 32 per network
ATS MODBUS Network - 1 per Annunciator
ATS MODBUS Network - 1 per Annunciator
ATSs - max 8 per Annunciator
ATS MODBUS Network - 1 per Annunciator
ATSs - max 8 per Annunciator
Doubly Terminated Network (Daisy Chain)
Maximum Total Network Cable Length: 2,700 M (8,850 ft)
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