Omron CP1L-EL20DR-D, Operation Manual

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Auxiliary Area Allocations by Function Appendix C
Information on Read Protection Using a Password
Communications
Ethernet Status
Name Address Description Access Updated
UM Read Protection Flag A99.00 Indicates whether the entire user program in the PLC is
read-protected.
OFF: UM not read-protected.
ON: UM read-protected. Read-only
Task Read Protection Flag A99.01 Indicates whether read protection is set for individual
tasks.
OFF: Tasks not read-protected.
ON: Tasks read-protected. Read-only
Program Write Protection for
Read Protection A99.02 Indicates whether the program is write-protected.
OFF: Write-enabled.
ON: Write-protected. Read-only
Enable/Disable Bit for Pro-
gram Backup A99.03 Indicates whether creating a backup program file (.OBJ)
is enabled or disabled.
OFF: Enabled.
ON: Disabled. Read-only
Name Address Description Access Updated
Link Status Flag A45.14 ON while a link is established between hubs.
OFF while a link is terminated. Read-only
IP Address Setting Error
Flag A46.02 ON if any of the following conditions apply to the IP
address.
• All bits in the host ID are 0 or 1.
• All bits in the network ID are 0 or 1.
• All bits in the subnet ID are 1.
• The IP address begins with 127 (0x7F)
OFF when the IP address is normal. Read-only
IP Address Table Error Flag A46.03 ON if the IP address table information is incorrect.
OFF when the IP address table is normal. Read-only
IP Router Table Error Flag A46.04 ON if the IP router table information is incorrect.
OFF when the IP router table is normal. Read-only
DNS Server Error Flag A46.05 ON when the following errors occur during DNS server
operation:
• An illegal server IP address is set.
• A timeout occurs during communications with the
server.
OFF when DNS server operation is normal.
Read-only
Routing Table Error Flag A46.06 ON if the routing table information is incorrect.
OFF when the routing table is normal. Read-only
SNTP Server Error Flag A46.11 ON when the following errors occur during SNTP server
operation:
• An illegal server IP address or host name is set.
• A timeout occurs during communications with the
server.
OFF when SNTP server operation is normal.
Read-only
Address Disagreement Flag A46.14 ON if the remote IP address is set to automatic genera-
tion but the local IP address host number and FINS node
address do not agree.
OFF under all other circumstances. Read-only
FINS/TCP Connection Flag 1 A47.00 Turned ON by the Unit when a connection is established.
Turned OFF by the Unit when the connection is termi-
nated. Read-only
FINS/TCP Connection Flag 2 A47.01 Turned ON by the Unit when a connection is established.
Turned OFF by the Unit when the connection is termi-
nated. Read-only
FINS/TCP Connection Flag 3 A47.02 Turned ON by the Unit when a connection is established.
Turned OFF by the Unit when the connection is termi-
nated. Read-only