Terminal Arrangement - Omron CS1W-CRM21 Operation Manual

Master Unit Specifications
DIP Switch
Baud Rate Setting
Communications Error
Communications Stop
Mode Setting
Registration Table Enable
Setting
2-1-5

Terminal Arrangement

Communications Power Supply Connector
Communications Connector
40
This setting is read when the power supply is turned ON to the PLC.
SW1 SW2
DR0 DR1
OFF OFF
ON OFF
OFF ON
ON ON
Slave Units automatically detect the baud rate set on SW1 (DR0) and SW2
(DR2). It is not necessary to set the baud rate separately for any of the Slave
Units.
SW Name
3 ESTP (Communications
Error Communications
Stop Mode)
When SW3 (ESTP) is turned ON, all remote I/O communications are stopped
when a communications error occurs at any Slave Unit. (The Communications
Error Communications Stop Flag at status bit 02 also turns ON.) When SW3
is turned OFF, remote I/O communications continue even if a communications
error occurs at a Slave Unit.
SW Name
4 REGS (Registration
Table Enable Setting)
If the power is turned ON while SW 4 (REGS) is ON, the registration tables
that have been edited or downloaded by the CX-Integrator will be enabled.
Only registered Slave Units can participate. The registered Slave Units are
also compared to actual Slave Units. If they do not agree, the Registered
Table Verification Error Flag in status bit 01 will turn ON.
This connector supplies communications power to Slave Units and Repeater
Units connected to the trunk line.
BS+ (communications power supply positive side)
BS− (communications power supply negative side)
Note This connector does not supply power to the Master Unit.
BS+ (communications power supply positive side)
BDH (communications data high side)
BDL (communications data low side)
BS− (communications power supply negative side)
Baud rate setting
4 Mbps (default)
3 Mbps
1.5 Mbps
93.75 kbps
ON
Communications stop
when a communications
error occurs.
ON
Registration Table
enabled.
Section 2-1
OFF
Communications do not
stop when a communica-
tions error occurs.
OFF
Registration Table dis-
abled.