Mitsubishi Electric MELSEC-L Series - Page 236

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(2) Control data
Device Item Setting data Setting range Set by
(S1)+0 System area 
(S1)+1 Completion status
Stores the status at completion.
• 0000
H
: Normal completion
• Values other than 0000
H
: Abnormal end (error code)
0000
H
to
5000
H
System
(S1)+2
Specification of
changed item
Specify 0000
H
to update the address information on the connected
devices retained by the E71.
User
Specify the target for setting change among the own station IP
address, Ethernet operation setting, transmission speed, and
communication mode. Do not specify the transmission speed and
communication mode together with the own station IP address and
Ethernet operation setting. If doing so, only the specification of the
own station IP address and Ethernet operation setting is updated.
• Specification of own station IP address change (b0): Specify
whether to change the own station IP address.
(Set the address in (S1)+3 and (S1)+4.)
0: Do not change
1: Change
• Specification of the Ethernet operation setting change (b1): Specify
whether to change the Ethernet operation setting.
(Set the parameters in (S1)+5.)
0: Do not change
1: Change
• Specification of transmission speed and communication mode
changes (b12 to b15): Specify the transmission speed and the
communicate mode.
0: Do not change
1: Auto negotiation
2: 100Mbps/full-duplex
3: 100Mbps/half-duplex
4: 10Mbps/full-duplex
5: 10Mbps/half-duplex
(S1)+3
(S1)+4
Own station IP
address
Specify the IP address of the own station.
00000001
H
to
FFFFFFFE
H
User
(S1)+5
Ethernet operation
setting
Specify the Ethernet operation setting.
• Communication data code setting (b1)
0: Binary Code
1: ASCII Code
• TCP existence confirmation setting (b4)
0: Use the Ping
1: Use the KeepAlive
• Send frame setting (b5)
0: Ethernet
1: IEEE 802.3
• Setting of write enable/disable at RUN time (b6)
0: Disable
1: Enable
• Initial timing setting (b8)
0: Do not wait for OPEN (Communications impossible at STOP
time)
1: Always wait for OPEN (Communications possible at STOP time)
As listed in the
left
User
(S1)+6
(S1)+7
System area 