Omron CS1W-ETN21 Accessing Memory Receiving Mail Bit, System Setup Format Bits 8 to, To CPU Unit

CIO Area Allocations

Section 4-1

Accessing Memory (Receiving Mail) (Bit 2)

This bit turns ON while CPU Unit memory is being accessed to store an

attached file using the mail receive function, and it turns OFF after the file has

been stored.

System Setup Format (Bits 8 to 11)

These bits show the format classification in the CPU Bus Unit System Setup

Area.

Bit address

Format classification

11

10

9

8

0

0

0

0

ETN11 mode

0

0

0

1

ETN21 mode

Other

Reserve

Error Status (Ethernet Unit

The status of errors that occur at the Ethernet Unit is reflected as shown in the

to CPU Unit)

following diagram.

15

14

13

12

11

10

9

8

7

6

5

4

3

2

1

0

n+18

Bit 02: IP address setting error

Bit 03: IP address table error

Bit 04: IP router table error

Bit 05: DNS server error

Bit 06: Routing table error

Bit 11: SNTP server error

Bit 12: SMTP server error

Bit 13: POP server error

Bit 14: Address disagreement

Bit 15: EEPROM error

Bit

Error

Status

Manipulated by

Unit operation

0 to 1

(Not used.)

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2

IP address setting error

ON

Unit

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

Unit

OFF when the IP address is normal.

3

IP address table error

ON

Unit

On if the IP address table information is incorrect.

OFF

Unit

OFF when the IP address table is normal.

4

IP router table error

ON

Unit

ON if the IP router table information is incorrect.

OFF

Unit

OFF when the IP address table is normal.

5

DNS server error

ON

Unit

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

Unit

OFF when DNS server operation is normal.

6

Routing table error

ON

Unit

ON if the routing table information is incorrect.

OFF

Unit

OFF when the routing table is normal.

7 to 10

(Not used.)

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