Omron CJ Series Operation Manual page 47

Bit-level Distribution
Slave Units with industry-standard e-CON connectors, clamping terminal blocks, or small connec-
tors can be used to distribute I/O at the bit level. This enables distributed control in distributed
devices, such as sensors and other devices located over a wide area on conveyors or in ware-
houses. Bit Slave Units are available in two types: IP20 and IP54.
Five Communications Modes According to Number of Nodes, I/O Points, and
Allocated Memory
There are five communications modes that can be used according to number of Slave Units, the
number of I/O points, and the location of allocated memory.
This enables efficient application of memory according to the size of the system.
Data Exchange with Message Communications
Message communications can be used from the CX-Integrator running on a host computer or from
the CPU Unit to access Slave Units and Repeater Units on the CompoNet Network. This enables
easily improving network and system maintenance.
Easy Maintenance with Complete System Monitoring Functions
The CompoNet Network is constantly monitored to enable confirming system safety by quickly iso-
lating errors and checking communications status.
• CX-Integrator
The CX-Integrator provides the following network functionality.
• Uploading the network configuration
• Editing and transferring software setting tables
• Editing and transferring registration tables
• Setting Input Data Zero Clear Mode for when communications error occur
• Setting I/O Communications Manual Startup Mode
• Monitoring Master Unit status
• Monitoring the Master Unit error history
• Monitoring Slave Unit network participation status
• Setting and transferring Slave Unit parameters
• Monitoring Slave Unit information
• Managing files
• Managing hardware (EDS files)
• Smart Slave Unit Functions
Most of the Slave Units provide Smart Functions that can record various added-value information
in addition to the ON/OFF signals (I/O data). This enables preventive system maintenance (includ-
ing operation time monitoring and contact operation counter monitoring) and aids in faster system
introduction (including communications power voltage monitoring and I/O power status monitor-
ing). Settings are possible from either the CX-Integrator or through message communications.
• Master Unit Detection of Network Participation, Errors, and Status
When a Slave Unit joins the network, a BOOL I/O port that corresponds to the node address will
change to TRUE. The I/O port is called the WORD/BIT IN Connect Flag. If a Slave Unit that has
been participating in the network leaves the network, a BOOL I/O port that corresponds to the
node address will change to TRUE. The I/O port is called the WORD/BIT IN Communication Error
Flag.
Network status, such as communications errors and redundant Slave Unit node address, and
Slave Unit diagnostic results are detected by the Master Unit and displayed on the seven-segment
display on the front panel and reflected in the Status Flags.
CJ-series CompoNet Master Unit Operation Manual for NJ-series CPU Unit (Cat. No. W493)
1 Introduction
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