Allen-Bradley ControlNet PLC-5 User Manual page 18

1-4 Installing Your ControlNet PLC-5 Processor
Keyswitch-selects processor mode
ControlNet I/O Status Indicator
(Green/Red)
Channel 2 ControlNet Status Indicators
(Green/Red)
ControlNet Network Access Port
(NAP)-RJ45 connector
Channel 2
ControlNet Redundant Media Ports*
BNC; dedicated
Channel 1 Status Indicators (Green/Red)
DH+ Programming Terminal Connection
to Channel 1A
8-pin mini-DIN, parallel with 3-pin connectors
of Channel 1A; use only when Channel 1A is
configured for DH+ communications
Channel 1A
3 pin; default is DH+; configurable for:
remote I/O scanner
remote I/O adapter
DH+ communication
unused
Channel 1B
3 pin; default is remote I/O scanner;
configurable for:
remote I/O scanner
remote I/O adapter
DH+ communication
unused
1785-UM022B-EN-P - February 2002
Figure 1.2 PLC-5/40C, -5/46C, and -5/80C Processors Front Panel
1
Battery Status Indicator
(Red)
Processor RUN/FAULT Status Indicator
(Green/Red)
Force Status Indicator
(Amber)
Channel 0 Communication ACTIVE/FAULT
Status Indicator
(Green/Red)
Channel 0
Serial Port-25-pin D-shell; supports standard EIA
RS-232C and RS-423; is RS-422A compatible
Use this port with ASCII or DF1 full-duplex,
half-duplex master, and half-duplex slave
protocols. The port's default configuration supports
processor programming:
DF1 point-to-point
2400 bps
no parity
Memory Module Space
Battery Compartment
Channel 0 is optically coupled (provides high
electrical noise immunity) and can be used with most
RS-422A equipment as long as:
termination resistors are not used
the distance and transmission rate are reduced to
comply with RS-423 requirements
1
one stop-bit
BCC error check
no handshaking