Omron SYSMAC CS1W-SCB41-V1 Operation Manual page 99

Component Names and Functions
Note
Unit Number Switch
RS-422A/485 Port
RS-232C Port
70
Indicator Color
ERC Red Lit
Flashing
Not lit
SD1 Yellow Lit
Not lit
RD1 Yellow Lit
Not lit
TER1 Yellow Lit
(see note
3)
Not lit
SD2 Yellow Lit
Not lit
RD2 Yellow Lit
Not lit
TER2 Yellow Lit
(see note
4)
Not lit
1. Depending on the interval of flashing, the meaning is as follows:
Protocol data being initialized: 0.3 s
Protocol data initialized, or being overwritten: 1.0 s
Protocol data error: 1.0 s and CPU Unit ERC indicator is flashing
2. The Setup Area is allocated in the DM Area according to the unit number
setting. For details, refer to 2-3 I/O Memory Allocations.
3. Only the CJ1W-SCU31-V1/41-V1 is equipped with a TER1 indicator.
4. Only the CJ1W-SCU31-V1 is equipped with a TER2 indicator.
For the action required when an error occurs, refer to Section 11 Trouble-
shooting and Maintenance.
Set the CPU Bus Unit unit number for the Unit. The CIO Area and DM Area
are allocated according to the unit number setting. The words that are allo-
cated are used for the software switches, Status Area, and the System Setup.
Set the unit number between 0 and F. The factory setting is for unit number 0.
The specifications of the RS-422A/485 port are the same as those for the RS-
422A/485 port on the Serial Communications Board. See RS-422A/485 Port
on page 64.
The specifications of the RS-232C are the same as those for the RS-232C
port on the Serial Communications Board. See RS-232C Ports on page 63.
Status
Unit hardware error
Protocol data syntax error or protocol data
error (SUM error).
Unit is operating normally.
Port 1 is being used for sending.
Port 1 is not being used for sending.
Port 1 is being used for receiving.
Port 1 is not being used for receiving.
Terminating resistance is connected internally
for port 1.
Terminating resistance is not connected inter-
nally for port 1.
Port 2 is being used for sending.
Port 2 is not being used for sending.
Port 2 is being used for receiving.
Port 2 is not being used for receiving.
Terminating resistance is connected internally
for port 2.
Terminating resistance is not connected inter-
nally for port 2.
Section 2-1
Meaning