Delta AH500 Programming Manual page 687

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Instruction code

Explanation:

Before using the instruction, users have to accomplish the following setting in ISPSoft.

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

Station address

Remote IP address

Remote IP address

Whether to close the

: Function code

For example:

1 (16#01): The AH500 series PLC reads the data from several bit devices which are not

discrete input devices.

2 (16#02): The AH500 series PLC reads the data from several bit devices which are discrete

input devices.

3 (16#03): The AH500 series PLC reads the data from several word devices which are not

input registers.

4 (16#04): The AH500 series PLC reads the data from several word devices which are input

Pulse instruction 16-bit instruction (11 steps) 32-bit instruction

： Unit address

： Function code

： Device address

reading/writing of the data

n ： Data length

The station address should be within the range between

Example: The remote IP address is 172.16.144.230.

0: The connection is closed after the execution of the

instruction is complete.

1: The connection is persistent. (The closing of the

connection depends on the setting of the TCP

keepalive timer.)

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

Reading/Writing the Modbus TCP

Setting range

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