13
C1000H System, or in C2000H Simplex or Duplex Systems, up to seven Ex-
pansion I/O Racks can be connected in series to the CPU Rack or, in a
C2000H Duplex System, to the CPU I/O Rack.
Only I/O Units and Special I/O Units can be mounted to Slave Racks. All I/O
Units, Special I/O Units, Remote I/O Master Units, and I/O Link Units can be
mounted to any slot on all other Racks. All other Units, including Interrupt
Input Units, File Memory Units, and all other Link Units must be mounted
only to certain slots on specific Racks. All Units occupy only one slot except
for the PID Unit and some Position Control Units.
All Units that do not require specific slots can be mounted in any order. Units
that do require specific slots can be mounted in any order within the required
slots.
Refer to the
C1000H/C2000H Installation Guide
for details about which slots
can be used for which Units and other details about PC configuration. The
way in which I/O points on Units are allocated in memory is described in
3-2
IR Area
.
Unit Mounting Position
PC Configuration
Section 2-2
