Omron SYSMAC C200HW-PCS01-EV1, Руководство по эксплуатации

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11-3-2 Socket Status Area
Each PC Card Unit has four sockets that can be used for TCP or UDP. The status
of each of these sockets can be confirmed from the respective AR bits.
AR Words 08 to 15
Byte
Operating level #0, socket no. 1 status area
Operating level #0, socket no. 2 status area
Operating level #0, socket no. 3 status area
Operating level #0, socket no. 4 status area
Operating level #1, socket no. 1 status area
Operating level #1, socket no. 2 status area
Operating level #1, socket no. 3 status area
Operating level #1, socket no. 4 status area
Bit Configuration The meaning of individual bits in each status word is shown in the following dia-
gram.
Bit
Open Flag
Results Storage Error Flag
Socket Classification Flag Closing Flag
Sending Flag
Receiving Flag
Opening Flag
Bit Flag Value Status Description
Bit 0 Opening Flag 1 Opening ON when an open request is received.
0 Open complete OFF when opening has been completed.
Bit 1 Receiving Flag 1 Receiving ON when a receive request is received.
0 Receive complete OFF when receive has been completed.
Bit 2 Sending Flag
1 Sending ON when a send request is received.
0 Send complete OFF when send has been completed.
Bit 3 Closing Flag 1 Closing ON when a close request is received.
0 Close complete OFF when close has been completed.
Bit 4 to 12 Not used
Bit 13 Socket
Classification 1 TCP socket Indicates that the open socket is a TCP socket.
(This has no meaning if the Open Flag is “0.”)
Flag
0 UDP socket Indicates that the open socket is a UDP socket.
(This has no meaning if the Open Flag is “0.”)
Bit 14 Results Storage
Error Flag 1 Results storage
error ON when the results storage area is incorrectly
defined for a FINS command sent to a PC Card
Unit. This flag will not turn ON until the Opening,
Receiving, Sending, and Closing Flags turn OFF.
0 Results storage
normal OFF when the next service is requested at the
socket.
Bit 15 Open Flag
1 Open (connected) ON when opening has been completed. This flag
indicates the TCP socket is connected.
0 Closed OFF when closing has been completed. Remains
OFF if an error occurs during opening.
FINS Commands Requesting Socket Services
Section 11-3