User manual

Publication 2711-UM014G-EN-P - September 2008 187
Terminal Connections Chapter 12
Making Remote I/O Connections
To connect a PanelView terminal to a remote I/O scanner, use cable
Catalog No. 1770-CD (equivalent to Belden 9463). The maximum
cable length (link distance) is determined by the communication rate.
• 2,800 m (10,000 ft) for 57.6K baud
• 1,400 m (5,000 ft) for 115.2K baud
• 700 m (2,500 ft) for 230.4K baud
See Programmable Controller Wiring and Grounding Guidelines,
publication 1770-4.1. The user manual for the I/O scanner module
also provides cabling information.
TIP
The polarity of the remote I/O connector on the PanelView
terminal is reversed from the PLC Scanner connector. However,
the polarity is the same as the scanner card connection to the
SLC controller.
TIP
If the terminal is the last device on the link, connect a 1/2 watt
terminating resistor across terminals 1 and 2. The value of the
resistor depends on the remote I/O communication rate:
• for 57.6 kilobaud and 115.2 kilobaud, use a 150-ohm resistor
• for 230 kilobaud, use an 82-ohm resistor
Remote I/O Port 3-pin Terminal Block
Connector
Clear = 2
Blue = 1
Shield
Cable (Cat. No. 1770-CD)
Connector (One provided with
terminal)
To PLC or Scanner
Remote I/O Port
PanelView 1000 Keypad
PanelView 550 Keypad