APPX
Appendix 3 Buffer Memory
265
A
Connection status storage area
Latest error code after the 2nd connection of MELSOFT transmission port (TCP/IP)
(Un\G52452 to Un\G52458)
The latest error code of the 2nd to 8th connection of the MELSOFT transmission port (TCP/IP) is stored.
Latest error code after the 2nd connection of SLMP transmission port (TCP/IP) (Un\G52580 to
Un\G52586)
The latest error code of the 2nd to 8th connection of the SLMP transmission port (TCP/IP) is stored.
System port latest error code storage area
Auto-open UDP port latest error code (Un\G52738)
The latest error code of the auto-open UDP port is stored.
MELSOFT transmission port (UDP/IP) latest error code (Un\G52739)
The latest error code of the MELSOFT transmission port (UDP/IP) is stored.
MELSOFT transmission port (TCP/IP) latest error code (Un\G52740)
The latest error code of the MELSOFT transmission port (TCP/IP) is stored.
SLMP transmission port (UDP/IP) latest error code (Un\G52741)
The latest error code of the SLMP transmission port (UDP/IP) is stored.
SLMP transmission port (TCP/IP) latest error code (Un\G52742)
The latest error code of the SLMP transmission port (TCP/IP) is stored.
SLMPSND instruction latest error code (Un\G52743)
The latest error code of the SLMPSND instruction is stored.
Status for each protocol (IP packet)
Received packet total count (Un\G52992 to Un\G52993, Un\G60928 to Un\G60929)
The status is counted from 0 to 4294967295 (FFFFFFFFH).
Received packet checksum error discard count (Un\G52994 to Un\G52995, Un\G60930 to
Un\G60931)
The status is counted from 0 to 4294967295 (FFFFFFFFH).
Sent packet total count (Un\G52996 to Un\G52997, Un\G60932 to Un\G60933)
The status is counted from 0 to 4294967295 (FFFFFFFFH).
Simultaneous transmission error detection count (receive buffer full count) (Un\G53014 to
Un\G53015, Un\G60950 to Un\G60951)
The status is counted from 0 to 4294967295 (FFFFFFFFH).
Receive abort count (Un\G53021, Un\G60957)
The status is counted from 0 to 65535 (FFFFH).
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