Passive Tcp Open Request - Omron CS1W-ETN11 Operation Manual

Command/Response Reference
Results Storage Area Response Codes

11-3-13 PASSIVE TCP OPEN REQUEST

Command Block
27 10
Command TCP
code socket
number
Response Block
Results Storage
Format
Parameters
TCP Socket Number
(Command)
Results Storage Area
(Command)
Local TCP Port Number
(Command, Results
Storage Area)
Timeout Value (Command)
Remote IP Address
(Command, Results
Storage Area)
228
Response code
2210 Specified socket is not open.
2211 High traffic at Unit; cannot execute service.
Response code
0000 Normal
Requests processing to open a TCP socket. The socket will wait to be con-
nected to another node.
Results storage area Local
TCP
port
number
27 10
Command Response
code code
Response Remote IP
code address
The TCP socket number to be opened specified as 2 bytes between 1 and 8.
The area in which the results of the command execution are stored. The first
byte specifies the memory area and data type (variable type). The 2nd to 4th
bytes specify the beginning address of the results storage area. Refer to
page 216 for details about the variable types and addresses that can be spec-
ified.
The TCP port number for communications with the socket is specified as 2
bytes (0 cannot be specified). Do not specify the port number of the FTP
server (port #21).
The maximum control time between receiving the open request and storing
the result. If this set time limit is exceeded, the code for a timeout error will be
set as the results storage response code. The value is set in units of 0.1 s.
The timeout time is unlimited if the value is set to 0.
Specify the remote node's IP address. If all zeroes are set, no remote node is
specified and connection is awaited from any node. If any other value is set,
connection is awaited from the specified remote node. The IP address of the
connected remote node will be stored in the results storage area.
Description
Description
Remote IP
Timeout
address
value
Remote port
number
Section 11-3
Remote TCP
port number