6
Remote I/O Installation and Programming Manual
2.2.1
Power Connections
Power to the Remote I/O Interface is supplied by the indicator, using a ribbon cable attached from connector J15
on the indicator to connector J1 on the Remote I/O board. Note that the red wire strand of the ribbon cable must
connect the 1 pins at each connector.
2.2.2
Termination Resistance
If the Remote I/O Interface is the last, or only, device attached to the PLC, the interface must provide a
termination resistance. Use Table 2-2 to determine the appropriate termination resistance value and JU1 jumper
position for the network. If the Remote I/O Interface is not the last device in a chain, position the jumper on one
pin only. Resistance values for the jumper positions are marked on the Remote I/O Interface logic board.
2.2.3
Serial Connections
Connections to the indicator are made at connector J4
on the Remote I/O Interface controller board (see
Figure 2-1 on page 3 for board location of J4).
Figure 2-6 shows the J4 connector layout for the
Remote I/O Interface. Table 2-1 on page 2 shows
connections between the Remote I/O Interface and the
I Q p l u s 5 1 0 / 7 1 0 i n d i c a t o r s f o r R S - 2 3 2
communications.
Figure 2-6. J4 Indicator Connections
2.2.4
A-B Network Connections
Connections to the Allen-Bradley network are made at
connector J5 on the Remote I/O Interface controller
board (see Figure 2-1 on page 3 for board location of
J5). Figure 2-7 shows the connector layout for
network connections. Connectors 4–6 are tied to
connectors 1–3 to allow daisy-chaining through the
Remote I/O Interface.
Figure 2-7. J5 Network Connections
Network Data Rate
Maximum Cable Length
Maximum Nodes
Termination Resistance JU1 Jumper Position
57.6 Kbps
10 000 ft
16
150
Ω
1–2
115.2 Kbps
5000 ft
230.4 Kbps
2500 ft
32
82
Ω
2–3
Table 2-2. JU1 Jumper Positions and Termination Resistance Values
RS-232 GND
No Connection
20mA
+IN
20mA
–IN
20mA
+OUT
20mA
–OUT
J4
6
5
4
3
2
1
RS-232 TxD
RS-232 RxD
7
8
CLEAR
SHIELD
BLUE
CLEAR
SHIELD
BLUE
J5
6
5
4
3
2
1
DISCONTINUED
