Omron C200HW-CORT21, Operation Manual

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Physical layout of the Unit
Section 2-1
25
2-1-3 Rotary Switch
The rotary switch is used to set the Unit number (or so called “Machine No.”).
Memory allocation
The Unit number setting determines which words in the Internal Relay and
Data Memory Areas are allocated to C200HW-CORT21.
The allowed Unit number setting range depends on the PLC CPU Unit being
used, as shown in the following table.
Any Unit number in the setting range is allowed as long as it has not been set
on another Special I/O Unit connected to the PLC. If the same Unit number is
used for the C200HW-CORT21 and another Special I/O Unit, an I/O Unit
Over error will occur in the PLC and it will not be possible to start up the
network communication.
Note Always turn OFF the power to the PLC before changing the Unit number
setting. The Unit only reads the Unit number setting during the initialisation
after power-up, so not after a software reset.
Use a small flat-blade screwdriver to turn the rotary switch; be careful not to
damage the switch.
2-1-4 Baud rate switches
The switches on the front of the Unit are used to set the baud rate.
Only the first 3 switches are used; the fourth switch is reserved for future use
and should remain in the OFF position. The following table lists the DIP-
switch settings and the corresponding baud rate.
CPU Unit models Unit number
setting range
Setting
method
C200HE,
C200HG-CPU3
❏
-E/CPU4
❏
-E,
C200HX-CPU3
❏
-E/CPU4
❏
-E
0 to 9
Single-digit
hexadecimal
C200HG-CPU5
❏
-E/CPU6
❏
-E,
C200HX-CPU5
❏
-E/CPU6
❏
-E,
CS1-series
0 to F