88
I/O Memory Allocations Section 2-3
Restart Bit
A Restart Bit can be turned ON and then OFF to restart the Serial Communi-
cations Board without turning OFF the PLC power supply.
TXDU(256)/RXDU(255) Instruction Bits for No-protocol Mode
Unit No. A A63001 A63002
Unit No. B A63101 A63102
Unit No. C A63201 A63202
Unit No. D A63301 A63302
Unit No. E A63401 A63402
Unit No. F A63501 A63502
Unit Function
A50100 Unit No. 0 Restart Bit
A50101 Unit No. 1 Restart Bit
A50102 Unit No. 2 Restart Bit
A50103 Unit No. 3 Restart Bit
A50104 Unit No. 4 Restart Bit
A50105 Unit No. 5 Restart Bit
A50106 Unit No. 6 Restart Bit
A50107 Unit No. 7 Restart Bit
A50108 Unit No. 8 Restart Bit
A50109 Unit No. 9 Restart Bit
A50110 Unit No. A Restart Bit
A50111 Unit No. B Restart Bit
A50112 Unit No. C Restart Bit
A50113 Unit No. D Restart Bit
A50114 Unit No. E Restart Bit
A50115 Unit No. F Restart Bit
Unit Port 1 Settings Change Bit Port 2 Settings Change Bit
Word Bit Contents
A202 00 to 07 Network Communications Enabled Flag
Turns ON when execution of network communications instruc-
tions (SEND(090), RECV(098), CMND(490), and PMCR(260))
including TXDU(256) and RXDU(255) instructions is enabled.
A203 to
A210
00 to 15 Network Communications Completion Code
Stores the completion code for network communications
instructions (SEND(090), RECV(098), CMND(490), and
PMCR(260)) including TXDU(256) and RXDU(255) instructions
that have been executed.
A219 00 to 07 Communication Port Error Flags
Turn ON if an error occurs during execution of network commu-
nications instructions (SEND(090), RECV(098), CMND(490),
and PMCR(260)) including TXDU(256) and RXDU(255) instruc-
tions.
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