Omron SYSMAC CJ1W-SCU21-V1 User Manual

70
Component Names and Functions Section 2-1
Note 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.
Unit Number Switch 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.
RS-422A/485 Port 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.
RS-232C Port 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.
ERC Red Lit Unit hardware error
Flashing Protocol data syntax error or protocol data
error (SUM error).
Not lit Unit is operating normally.
SD1 Yellow Lit Port 1 is being used for sending.
Not lit Port 1 is not being used for sending.
RD1 Yellow Lit Port 1 is being used for receiving.
Not lit Port 1 is not being used for receiving.
TER1
(see note
3)
Yellow Lit Terminating resistance is connected internally
for port 1.
Not lit Terminating resistance is not connected inter-
nally for port 1.
SD2 Yellow Lit Port 2 is being used for sending.
Not lit Port 2 is not being used for sending.
RD2 Yellow Lit Port 2 is being used for receiving.
Not lit Port 2 is not being used for receiving.
TER2
(see note
4)
Yellow Lit Terminating resistance is connected internally
for port 2.
Not lit Terminating resistance is not connected inter-
nally for port 2.
Indicator Color Status Meaning

Omron SYSMAC CJ1W-SCU21-V1 Specifications

General

Brand	Omron
Model	SYSMAC CJ1W-SCU21-V1
Category	Network Hardware
Language	English