Omron SYSMAC CS1W-SCB41-V1 Operation Manual page 287

Auxiliary Area and CIO Area Allocations
Sending Data (TXD(236)/TXDU(256))
Words
Board
(CS Series only)
TXD(236)
Port 1 Port 2
A35605 A35613
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258
Unit
(CS/CJ Series)
TXDU(256)
Port 1 Port 2
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Word n+9, Word n+19,
bit 05 bit 05
A20200 to A20207
A203 to A210
A21900 to A21907
n = CIO 1500 + 25 × unit number
Send Ready Flag
1: Send enabled; 0: Send disabled (includes sending in
progress)
This flag turns OFF when TXD(236) is executing at CPU Unit.
The flag turns ON when data transmission from Board to
external device is completed.
TXDU(256) Executing Flag
1: Executing; 0: Not executing
Communications Port Enabled Flags
Turns ON (1) if execution of the network communications
instructions (SEND(090), RECV(098), CMND(490),
PMCR(260)) including TXDU(256) and RXDU(255), is possi-
ble for the communications port.
Communications Port Completed Codes
Stores the response code when network communications
instructions (SEND(090), RECV(098), CMND(490),
PMCR(260)) including TXDU(256) and RXDU(255) are exe-
cuted.
Communications Port Error Flags
Turns ON (1) if an error occurs during execution of the network
communications instructions (SEND(090), RECV(098),
CMND(490), PMCR(260)) including TXDU(256) and
RXDU(255).
Section 7-3
Bit