Omron SYSMAC C200HW-PCS01-EV1, Operation Manual

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140
Socket Service Request Commands
Command
code
Name Description Page
MRC SRC
27 01 UDP OPEN REQUEST Opens the UDP socket. 187
02 UDP RECEIVE REQUEST Receives data at the UDP socket. 188
03 UDP SEND REQUEST Sends data from the UDP socket. 189
04 UDP CLOSE REQUEST Closes the UDP socket and ends communications. 190
10 TCP OPEN REQUEST (PASSIVE) Opens a TCP socket and waits for connection to another
node. 191
11 TCP OPEN REQUEST (ACTIVE) Opens a TCP socket and connects to another node. 192
12 TCP RECEIVE REQUEST Receives data at the TCP socket. 193
13 TCP SEND REQUEST Sends data from the TCP socket. 194
14 TCP CLOSE REQUEST Closes the TCP socket and ends communications. 195
The basic format for FINS commands used for socket services is shown in the
following diagram.
Socket
number
0 1 2 3 4 5 6 7 8 9 10 11 12
Command
code Results storage area Parameters
Command Code:
Specifies the process code requested for the socket.
Socket Number
Specifies the socket number for the process, between 1 and 4.
Results Storage Area
Specifies the area to store the results of the requested process.
Parameters
Specifies the parameters defined for the command code.
Refer to Section 11 FINS Commands and Responses for details about com-
mands.
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 by 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
Basic FINS Command
Format
Using Socket Services
Section 10-2