System Considerations - Omron C200H Operation Manual

System Considerations

1-5 System Considerations
Number of Units
Slave Racks
A
High-speed Counters
Position Control Units
(NC111/112)
ASCII Units
Analog I/O Units
ID Sensor Units
Fuzzy Logic Units
4 Units
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System Configuration
Considerations
Precautions
The Analog I/O Units are classified as Special I/O Units for the C200HS, C200H,
and C200HX/HG/HE. For most Units, a maximum total of ten Special I/O Units
(including PC Link Units) can be mounted to the CPU Rack, Expansion I/O
Racks, and Slave Racks of a single PC. A single C200H-NC211 Position Control
Unit counts as two Units.
The unit numbers of the following Units can be set to between 0 and F Hex (0 to
15 decimal) instead of 0 to 9 when they are used with the C200HG-
CPU53/CPU63 or C200HX-CPU54/CPU64 CPU Units. This enables mounting
up to 16 Special I/O Units.
C200H-AD002, C200H-DA002, C200H-NC211, and C200H-CT201 with lot
numbers jj16 or later (January 1996 or later)
The Units that belong to the various Special I/O Unit groups are shown in the
following table. Their usage is limited according to the maximum current pro-
vided for the Rack and the amount of current consumed by each Unit. For de-
tails, refer to the Installation Guide .
Certain limitations apply to the number of Special I/O Units that can be mounted
on Slave Racks. The following table shows the maximum number of Group A, B,
C, and D Special I/O Units that can be mounted on a single Slave Rack when
only Units of that group are used.
B
High-density I/O Units
Temperature Control Units
PID Control Units
Cam Positioner Units
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8 Units
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If Units from any of the four groups are to be combined, then both of the following
two equations must be satisfied.
3A + B + 2C + 6D x 12
A + B + C + D x 8
Units can be mounted on other Racks as well, until the maximum total of ten
Units has been reached. Remember, however, that a single C200H-NC211
Position Control Unit counts as two Units. PC Link Units must also be counted
among the total of ten Units.
C200HS/C200H Special I/O Units are allocated IR area words according to the
unit number switch settings on their front panels. They do not use the words of
the slots in which they are mounted. For details regarding data area allocations,
refer to 2-2 and 3-2 IR and DM Bit Allocations .
With the C200H, do not mount an Analog I/O Unit in the two slots adjacent to the
CPU. Doing so would prevent peripheral devices such as the Programming
Console from being connected.
Special I/O Units cannot be used on a C200H Remote I/O Slave Rack if the
Slave Rack is connected to different PC (i.e., C500, C1000H, or C2000H).
Be sure to turn off the power supply to the PC before installing or disconnecting
Units or connecting lines.
C
Temperature Sensor Units
Voice Units
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6 Units
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Section 1-5
D
Position Control Units
(NC211)
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2 Units
5