Exchanging Data; Basic Communications Operations - Omron GQ-CRM21 Operation Manual

4-1 Exchanging Data

4-1-1 Basic Communications Operations

Data Exchange between CC-Link and CompoNet Networks
Bit input and bit output data for Bit Slave Units on the CompoNet network and input and output data for
Word Slave Units on the CompoNet network are shared with the Gateway Unit using remote I/O com-
munications.
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If data links are executed between the Gateway Unit and CC-Link Master Unit, this I/O data will be
refreshed in buffer memory (RX, RY, RWr, and RWw) in the CC-Link Master Unit.
CC-Link Master Unit
Remote inputs
(RX)
Status
Remote outputs
(RY)
Remote input
registers (RWr)
Participation Flags
and Communica-
tions Error Flags
Remote output
registers (RWw)
CC-Link data links
• The Slave Units on the CompoNet network are assigned to buffer memory in the CC-Link Master Unit
as follows:
Bit Input Slave Units
Bit Output Slave Units
I/O Bit Slave Unit
Word Input Slave Unit
Word Output Slave Unit
I/O Word Slave Unit
4 - 1
Gateway Unit
Remote inputs
(RX)
Status
Remote outputs
(RY)
Remote input
registers (RWr)
Participation Flags
and Communica-
tions Error Flags
Remote output
registers (RWw)
Word
Output
Slave Unit
: Remote input (RX) area
: Remote output (RY) area
: Remote input (RX) area and remote output (RY) area
: Remote input register (RWr) area
: Remote output register (RWw) area
: Remote output register (RWw) area and remote input register (RWr)
area
Remote I/O Communications
I/O Word Word Bit Output
Slave Unit Input Slave Unit
Slave Unit
CompoNet network
CompoNet Gateway Unit for CC-Link Operation Manual
I/O Bit
Bit Input
Slave Unit Slave Unit