CTI 2572-B / 2500C-2572-B Installation and Operation Manual 41
The following command block is used for the WRITE command.
Description Hex Decimal
0 Error Word 0000 0
1 Command Code (Write) 0201 513
2 Connection Number (19221 - 19228)
3 Source: Starting V Memory Address in the Local PLC
4 Number of Words to Transfer (1-256)
5 Destination: Starting V Memory Address in Remote PLC
6 Offset 0000 0
7 - 9 Unused (Set to 0) 0000 0
10 IP Address of Remote Device - High 16 bits
(UDP Only: IP Address Location bit in the Create Socket
command must be set to 1)
11 IP Address of Remote Device - Low 16 bits
(UDP Only: IP Address Location bit in the Create Socket
command must be set to 1)
12 UDP Port Number of Remote Device
(UDP Only: IP Address Location bit must be set to 1)
13 - 15 Unused (Set to 0) 0000 0
Offset 0 Error Word - Set to 0 so that any previous error codes are cleared.
Offset 1 Command Code - The Command Code is 513 decimal (or 0201 hexadecimal).
Offset 2 Connection Number - You can specify any connection number that has been previously
established in a C
REATE SOCKET command block.
Offset 3 Source - The starting address of V memory which contains the values you want to transfer.
The address is 1 relative.
Offset 4 Number of Words - This indicates the number of words you want to transfer.
Offset 5 Destination - The starting address of V memory in the remote PLC that you want to update.
This address is 1 relative.
Offset 6 Command Timeout in seconds - When set to 0, the default value of approximately 9 seconds
is selected. A value of 999 specifies an infinite timeout.
Offset 7-9 Unused - Set to 0.
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