OPERATION MANUAL CompoBus/S

C200HW-SRM21-V1 Master Unit for CS-series, C200HX/C200HG/C200HE-(Z)E, and C200HS PLCsSection 4-1
4-1-2 Switch Settings
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Indicators
The following table shows the meaning of the indicators.
Indicator Status Meaning
RUN (green) ON The Unit is operating normally.
OFF Indicates one of the following conditions:
The power is OFF, there is an I/O setting error, the CPU
Unit is in standby status, or there is a unit number setting
error.
SD (yellow) ON Data is being transmitted.
OFF Data is not being transmitted.
RD (yellow) ON Data is being received.
OFF Data is not being received.
ERC (red) ON A Slave has been withdrawn from communications.
(Communications error)
OFF The Slaves are communicating normally.
IN/OUT (red) ON An error has occurred with an Output Slave.
OFF An error has occurred with an Input Slave or all Slaves
are operating normally.
8421 (red) ON/OFF These indicators represent the four-digit binary slave
number of the Slave in which the error occurred.
Rotary Switch The Master Unit’s unit number (Special I/O Unit’s unit number) is set with the
rotary switch on the front of the Unit.
MACHINE
No.
The highest possible unit number depends on the PLC model and the usable
node number setting set with pin 1 of the DIP switch.
CPU Unit Number of usable Master Units Usable node number setting
(with DIP switch)
CS1 16
(allocated words for 1 Special I/O
Unit (i.e., 10 words))
C200HX-CPU3@-(Z)E
/-CPU4@-(Z)E, C200HG-
CPU3@-(Z)E
/-CPU4@-(Z)E, All
C200HE/HS PLCs
C200HX/HG-CPU5@-(Z)E/
CPU6@-(Z)E/CPU8@-(Z)E
8
(allocated words for 2 Special I/O
Units (i.e., 20 words))
10
(allocated words for 1 Special I/O
Unit (i.e., 10 words))
5
(allocated words for 2 Special I/O
Units (i.e., 20 words))
16
(allocated words for 1 Special I/O
Unit (i.e., 10 words))
8
(allocated words for 2 Special I/O
Units (i.e., 20 words))
IN0 to IN7 and OUT0 to OUT7 0 to F
IN0 to IN15 and OUT0 to OUT15 0 to E
IN0 to IN7 and OUT0 to OUT7 0 to 9
IN0 to IN15 and OUT0 to OUT15 0 to 8
Unit number
setting range
IN0 to IN7 and OUT0 to OUT7 0 to 9, A to F
IN0 to IN15 and OUT0 to OUT15 0 to 8, A to E
Any unit number in the ranges above can be set, as long as the same unit
number has not been set on another Special I/O Unit mounted in the PLC. Set
the unit number with a small flat-blade screwdriver, being careful not to damage
the switch.