33
2-4
Expanded System Configurations
2-4-1 Required Mounting Conditions
A maximum of 16 Special I/O Units including PC Link Units can be mounted to
any slot of CPU, Expansion I/O, and Slave Racks. I/O word numbers 100 to 199,
400 to 459, and DM 1000 to DM 2599 are allocated to each Special I/O Unit.
High-density I/O Units can be mounted Remote I/O Slave Units only when the
Remote I/O Slave Units are connected to C200H-RM001-PV1 or
C200H-RM201 Remote I/O Master Units.
The number of Special I/O Units used with a Slave Rack is limited by data trans-
mission considerations, as shown in the table below. The numbers in the table
indicate the maximum number of Units of groups A, B, C, or D which can be used
with a single Slave Rack.
A
B
C
D
High-speed Counter Units
Position Control Units
(C200H-NC111/112,
C200HW-NC113/213)
ASCII Units
Analog I/O Units
ID Sensor Units
Fuzzy Logic Units
High-density and Mixed I/O
Units
Temperature Control Units
Cam Positioner Units
Heat/Cool Temperature
Control Unit
PID Control Unit
Temperature Sensor Units
Voice Units
Position Control Units
(C200H-NC211,
C200HW-NC413)
Motion Control Units
4 units max.
8 units max.
6 units max.
2 units max.
Note
1. When a combination of Units from groups A, B, C, and D is used, the number
from each group must satisfy both the following equations:
3A + B + 2C + 6D
≤
12
A + B + C + D
≤
8
2. Other Units can be added until the total number of Units reaches ten. If PC
Link Units are used, the number of Units including the PC Link Units must
not exceed ten.
2-4-2 Special I/O Units
It is possible to connect a variety of Special I/O Units to the C200HX/
C200HG/C200HE Racks.
The TTL Input Unit, DC Input Unit, TTL Output Unit, Transistor Output Unit, TTL
I/O Unit, and DC Input/Transistor Output Unit are High-density I/O Units.
The C200H-ID501, C200H-OD501, and C200H-MD501 are I/O Units for the
TTL Unit.
Eight input points each of the C200H-ID501, C200H-ID215, C200H-MD501,
C200H-MD115, and C200H-MD215 can be set for pulse input.
A High-density I/O Unit can retrieve pulse input, which is shorter in length than
that of the High-density I/O Unit cycle time, as an input signal when the High-
density I/O Unit is set for pulse input.
High-density I/O Units
(Special I/O Units)
Expanded System Configurations
Section 2-4
