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3 cio area allocations, Cio area allocations – Omron W343-E1-07 User Manual

Page 88

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67

CIO Area Allocations

Section 4-3

4-3

CIO Area Allocations

The various kinds of data are stored in the offset positions shown in the fol-
lowing diagram, from the beginning word in the area for each Unit.

The beginning word n is calculated by the following equation:

Beginning word n = CIO 1500 + (25 x unit number)

The following items in the diagram can also be checked using software switch
settings on the CX-Programmer.

• The status of UDP/TCP sockets 1 to 8 (Opening Flag, Receiving Flag,

Sending Flag, Closing Flag, Results Storage Error Flag, Socket Open
Flag)

• Service status (FTP status)

For explanations of how to use the related communications services listed in
the above diagram, refer to the indicated sections.

Offset

Bit

Data direction

Related communications services

Unit Control Switch

UDP Socket No. 1 Status

TCP Socket No. 1 Status

Service Status

Error Status

Socket Service Re-
quest Switches 5

Socket Service Re-
quest Switches 6

(Not used.)

(Not used.)

CPU Unit to Ethernet Unit

Ethernet Unit to CPU Unit

CPU Unit to Ethernet Unit

Socket Services

Mail Function

Socket Services

Socket Services

FTP Service, etc.

All error conditions

TCP Socket No. 2 Status

TCP Socket No. 3 Status

TCP Socket No. 4 Status

TCP Socket No. 5 Status

TCP Socket No. 6 Status

TCP Socket No. 7 Status

TCP Socket No. 8 Status

UDP Socket No. 2 Status

UDP Socket No. 3 Status

UDP Socket No. 4 Status

UDP Socket No. 5 Status

UDP Socket No. 6 Status

UDP Socket No. 7 Status

UDP Socket No. 8 Status

Socket Service Re-
quest Switches 7

Socket Service Re-
quest Switches 8

Socket Service Re-
quest Switches 1

Socket Service Re-
quest Switches 2

Socket Service Re-
quest Switches 3

Socket Service Re-
quest Switches 4

n

n+1

n+2

n+3

n+4

n+5

n+6

n+7

n+8

nn+9

n+10

n+11

n+12

n+13

n+14

n+15

n+16

n+17

n+18

n+19

n+20

n+21

n+22

n+23

n+24+

15

8

7

0

(Refer to Section 6
Socket Services
.)

(Refer to Section 6
Socket Services
.)

(Refer to Section 8 Mail.)

(Refer to Section 6
Socket Services
.)

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