Explanation Of Ethernet Instructions - Delta AH500 Programming Manual

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6.22.2 Explanation of Ethernet Instructions

Instruction code

Explanation:

is 1 if users want to open the TCP socket, and S

is the socket number. The AH500 series PLC as the client sends the TCP connection

request to the server if S

connection request from the client if S

The operand S

should be either 0 or 1; the operand S

and 8; the operand S

Before using the instruction, users have to accomplish the following setting in HWCONFIG of

ISPSoft or using the instruction MOV to transfer the data related to the sockets to the

corresponding special data registers.

PLC Parameter Setting→Ethernet-Basic→Setting the IP addres and the netmask

PLC Parameter Setting→Ethernet-Advance→Socket→Enable Socket Function

PLC Parameter Setting→Ethernet-Advance→Socket→TCP/UDP Socket Connection→

Setting the sockets which are used.

Users can set the sockets which uses the TCP protocol to execute the data exchange. The

values in all registers can be altered except that the transmitted data counter and the received

data counter are read-only counters.

Pulse instruction 16-bit instruction (7 steps) 32-bit instruction

： Socket mode

： Socket number

： Start mode

is 1, and the AH500 series PLC as the sever waits for the TCP

is 0. If users want to start the UDP connection, S

should be either 0 or 1.

Ch a pt er 6 Ap p l i ed I ns t r uc t i ons

is 0 if users want to open the UDP socket.

should be within the range between 1

Opening the socket

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