Connection Precautions - Omron C120 System Manual

Connection Precautions

Example 2 Connecting C200H Slaves to Other Masters
C500 CPU Rack
C500 Master 3G2A5-RM001-(P)EV1
2-9 Connection Precautions
Slaves
24
C200H Slaves can be connected to C120 or C500 Masters. Connection condi-
tions are the same as those for C500 Slaves, i.e., words for I/O Units on C200H
Slaves are automatically allocated. Here, however, Special I/O Units cannot be
mounted, and C200H I/O Units are handled as one word per Unit.
Optical Fiber Cable (APF/PCF)
C200H Slave
Rack
Note If a Unit with the blown-fuse detection function and alarm detection circuit
(C200H-OD411/213/214/OA221) is used on a C200H Slave Rack that is con-
nected to a PC other than a C200H/C200HS, all 16 I/O points will be regarded as
outputs. Therefore, you will not be able to read the flags for blown-fuse detection
function and alarm detection circuit from the ladder program.
For limitations in Unit connections, refer to Maximum Number of Connectable
Remote I/O Units under 2-1 Basic System .
Install Slaves on the leftmost slot of the Rack in all but C200H Systems. In
C200H Systems, Slaves contain the power supply and are mounted to the right
of the Backplane, not to a slot.
A Master cannot be mounted to a Slave Rack or to any Expansion I/O Rack con-
nected to a Slave Rack.
C200H Slave
Rack
C200H Slave
C200H-RT001/002-P
64 Units max.
32 words
max.
C500 Slave
C500 Slave
Section
Optical I/O Units
Repeater Unit
3G2A5-RPT01-(P)E required
for more than 32 Units.
Slave Rack
Slave Rack
2-9