Momentum Modbus Plus 170 PNT Series Betriebsanweisung Seite 134

  • Herunterladen
  • Zu meinen Handbüchern hinzufügen
  • Drucken
  • Seite
    / 376
  • Inhaltsverzeichnis
  • LESEZEICHEN
  • Bewertet. / 5. Basierend auf Kundenbewertungen
Seitenansicht 133
Using the Modbus Plus Ports
134
870USE10110 July 2004
Cluster Mode Cabling Schemes
Introduction In cluster mode, Momentum I/O devices may be placed in small groups, connected
by much shorter lengths of cable than in standard Modbus Plus cabling schemes.
You may use clusters and standard single nodes in the same network.
Length of
Network
The maximum length of cable from one end of the network to the other is 1500 ft
(450 m) if no repeaters are used.
You can use up to three Modicon RR85 Repeaters to extend the cable to up to
6000 ft (1800 m). Each repeater allows you to extend the cable 1500 ft (450 m
The following table shows the repeater information.
Number of
Devices in
Network
The maximum number of devices in a network is 64:
If you use only Momentum products, you may use up to 64 devices on one cable
segment without a repeater.
If you use a mixture of devices, you may use up to 32 devices on one cable
section. You must use a repeater to connect to another cable section. You may
use up to three repeaters and four cable sections in all.
Clusters in a
Network
The maximum number of clusters in a network is 8. The maximum number of
devices in a cluster is 8. Only Momentum devices may be used in the cluster.
Termination You must terminate both ends of the network with special terminating resistors.
Cable Between
Nodes in a
Cluster
The minimum length of cable between nodes in a cluster is 10 in (.25 m).
Description Part Number
Modicon RR85 repeater NW-RR85-000
Description Part Number
Modbus Plus or Modbus RS485 terminating RJ45 resistor plugs
(pack of 2)
170 XTS 021 00
Description Part Number
Modbus Plus / Modbus RS485 short interconnect cable 170 MCI 020 10
Modbus Plus or Modbus RS485 3 ft. interconnect cable 170 MCI 020 36
Seitenansicht 133
1 2 ... 129 130 131 132 133 134 135 136 137 138 139 ... 375 376

Kommentare zu diesen Handbüchern

Keine Kommentare