Mitsubishi Electric CR800 Series Ethernet Function Instruction Manual page 21

(10) MONPORT (Real-time monitoring function, port number)
Specify the inbound port number and the outbound port number of the real-time monitoring function. (0 to65535)
First element: Inbound port number
Second element: Outbound port number
Take note that 0 is a special value for the second element, which replies to the sender port number that is set in the UDP
header information of the packet data start that the robot controller has received.
When the Ethernet communication device is a Windows application, if the outbound port number is not designated on the
application side, it remains the initial value of 0.
To explicitly specify the port number to reply to, the value must be set on the Ethernet communication device. (Example:
12000, 12001)
(11) MONMODE (Real-time monitoring function, enable/disable)
Switch to enable or disable real-time monitoring.
0: Disable
1: Enable
CAUTION
If you change a port number from its initial value, be sure that it does not overlap with any
other port numbers. If there is any overlap, an error will occur when the controller starts, and
it will not work properly.
2 Preparation before use
2-7