4-3
Section
CIO Area Allocations
50
4-3
CIO Area Allocations
The various kinds of data are stored in the offset positions shown in the following
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)
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
(Refer to Section 6
Socket Services.)
Mail Function
(Refer to Section 8 Mail.)
Socket Services
(Refer to Section 6
Socket Services.)
Socket Services
(Refer to Section 6
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+
n+25
15
8
7
0
The following items in the diagram can also be checked using the CX-Program-
mer.
•
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.