Specifications

4 - 12
(b) Open settings
Set the protocols and the connection open systems for a data
communication.
Item Setting details
Protocol Set the communication method (TCP or UDP).
Open system
Select the connection open system (Active, Unpassive or Fullpassive) when TCP is selected
for "Protocol". Or, select MELSOFT connection (for connection with MELSOFT products).
Refer to Section 2.3 for details on the connection open system.
Fixed buffer Select any sending or receiving for which the fixed buffer is used.
Fixed buffer communication procedure Select "Procedure exist" or "No procedure".
Pairing open Select whether the paring open is performed or not.
Existence confirmation Select whether the existence of the external device is confirmed or not.
Host station Port No. (*1) Set in hexadecimal the host station port number to be used for data communication.
Transmission target device IP address (*1) Set the IP addresses of the external devices for data communication.
Transmission target device Port No. (*1) Set the port numbers of the external devices for data communication.
*1 Make the following settings according to the setting value of "Protocol" and "Open system".
TCP (Active) TCP (Passive) UDP
ARP function of external ARP function of external
Protocol
open system
Setting item
Yes No
Unpassive Fullpassive
MELSOFT
connection
Yes No
Host station Port No.
Transmission target device IP address
Transmission target device Port No.
: Setting required : Setting not required
POINT
(1) The numerical values (1 to 16) on the left side of the screen correspond to the
connection numbers on the Ethernet module side.
(2) For all the connections to be used, make the open settings.
(3) For the communication with devices without the ARP function, use the OPEN
instruction (dedicated instruction) to perform the open processing. (Set the MAC
address of the external devices in the control data of the OPEN instruction and then
perform the open processing. (refer to Appendix 5.2))