Yaskawa MP900 Series Machine Controller for Standard Operation - Manual (Page 148)

3.5 MP920 Module Definitions
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Count of Retry Input the number of retries (0 to 255) to attempt when a timeout is
detected after execution of the system function (the MSG-SND func-
tion). An error will be returned for the MSG-SND function if a
response is not received after the command is resent by the setting
number of retries.
Input 0 for the Count of Retry if the Response Time (parameter 3) is
set to 0 and the Protocol Type is set to MEMOBUS.
CNO Displays the connection number (1 to 20).
My Port (Local
Station's Port Number) Input the local station's port number (256 to 65,535) for connections.
Be sure to input a port number that is not used for other connections
or for diagnostics. If “0” is input for this parameter, that connection
number's data will be cleared and “-----” will be displayed in the My
Port column.
DST. IP Address
(Remote Station's IP
Address) Input the remote station's IP address for connections.
The input ranges are different for each field of the DST. IP Address:
• Field No. 1: 0 to 255 (excluding 127)
• Field No. 2: 0 to 255
• Field No. 3: 0 to 255
• Field No. 4: 1 to 254
When an unpassive open is being used, input 0 in all four fields.
DST. Port (Remote
Station's Port Number) Input the remote station's port number (0 or 256 to 65,535) for con-
nections. Be sure that the DST. IP Address and DST. Port combina-
tion are not the same as those for another connection.
Connect Type Select the transport-layer protocol.
• TCP: Communications operate according to TCP (Transmission
Control Protocol).
• UDP: Communications operate according to UDP (User Data-
gram Protocol).
Protocol Type Select an application-layer protocol that is supported by the remote
station.
• Extended MEMOBUS: Yaskawa's Extended MEMOBUS protocol
• MEMOBUS: Yaskawa's MEMOBUS protocol
• MELSEC: Mitsubishi's special protocol (control protocol type
1) for use with general-purpose sequencers and com-
puter links.
• No protocol: General-purpose message communications. Data can
be sent or received without being processed into con-
tinuous MW registers.
Setting Item Details