Vision700 - Using Ethernet

The V700 comprises a special Ethernet card that offers 8 sockets. Note that your V700 applications implement Ethernet differently from applications using other Vision controllers.

Certain Ethernet system operands are not relevant for the V700. The function of some system operands are replaced by a communication function located under the COM>TCP/IP menu, called V700: Read Socket Status.

Note ♦

The COM>TCP/IP menu also contains the function V700 Write Socket Status. This is reserved for use in a future version of VisiLogic.

The V700: Read Socket Status function checks the status of the selected socket according to the specified Socket Status requested, then saves the status indication into the linked operand.

In the next image, the function checks the status of Socket 0. The request is for Socket Status # 22. The result is stored in MI100. The following Compare function checks to see if the status is 23, TCP Connection Established.

The Socket Status request types are listed below.

Socket Status Request #22
Use this to check the current state of the socket.

Indication		Message
HEX	DEC	Message
0	0	Socket Closed
1	1	Socket ARP
13	19	Socket Initialized to TCP
14	20	Socket Listening (TCP Server)
15	21	Socket SYN Sent to TCP Server (Connect Request Sent)
16	22	Socket SYN Received from TCP Client (Connect Request Received)
17	23	Socket TCP Connection Established
18	24	Socket Closing (fin_wait)
1A	26	Socket Closing
1B	27	Socket Closing (time_wait)
1C	28	Socket Closing (Disconnect-request) (FIN packet is received from the peer)
1D	29	Socket Closing (last_ack)
22	34	Socket Open in UDP Mode
32	50	Socket Open IPRAW mode
42	66	Socket Open IMCRAW mode
5F	95	Socket Open PPPoE mode

Socket Status Request #38
Use this to see what communication protocol is running through the socket.

Indication		Message
HEX	DEC	Message
0	0	Pcom
1	1	MODBUS
2	2	Remote I/O
3	3	IP Protocol FB
4	4	UDP Raw
5	5	http
6	6	email
7	7	TCP Raw
8	8	ICMP
9	9	SNMP

Socket Status Request #41
Use this to read the number of messages transmitted via the specified socket into the linked register.
Socket Status Request #42
Use this to read the number of messages received via the specified socket into the linked register.
Socket Status Request #21
This is only relevant if you are troubleshooting a V700 Ethernet application. Check the socket status using #21; if the status is any value other than 0, contact Unitronics support.

Default Socket Settings

The V700 default settings are listed below:

Socket 0- TCP_Slave Port: 20256

Socket 1- TCP_Slave Port: 20257

Socket 2- TCP_Slave Port: 20258

Socket 3- TCP_Slave Port: 20259

Socket 4- TCP_Slave Port: 20260

Socket 5- TCP_Slave Port: 20261

Socket 6- TCP_Slave Port: 20262

Socket 7- TCP_Slave Port: 20263

Relevant Ethernet System Operands

This is the list of Ethernet system operands that are relevant for the V700.

#	Description	Comments
SB 142	Ethernet: Card Initialized	Remains Relevant
SB 147		Replaced by Request # 22
SB 148
SB 149
SB 150
SB 151	Ethernet Link: Communication established	This refers to the physical Ethernet cable
SB 163	Connection Closed	Replaced by Request # 22
SB 164
SB 165
SB 166

#	Description	Comments
SI 141	Protocol Type	Replaced by Request # 38
SI 142
SI 143
SI 144

Parameter	Function	Message
S1 145	Socket Status	Replaced by Request # 22
SI 146
SI 147
SI 148

Parameter	Description	Comments
SDW 14	Number of sent transmissions	Replaced by Request # 41 Request #41 to write the number of Sent Transmissions for the specified socket into the linked register
SDW 15
SDW 16
SDW 17
SDW 18	Number of received transmissions	Replaced by Request # 42 Request #42 to write the number of Received Transmissions for the specified socket into the linked register
SDW 19
SDW 20
SDW 21
SDW 37	MODBUS Slave: Receive bitmap	Increments a 4-bit field each time a slave receives data
SDW 61	MODBUS Slave: Ethernet Receive bitmap	Increments a 4-bit field each time a slave receives data