Carrier RTU-MP, Integration Manual

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Troubleshooting
22 RTU-MP Controller
In the above example, MAC address 16 would know to pass the token back to MAC address 1 instead of
counting up to MAC address 127). Each MS/TP master node on the network must have their Max Masters set
to this same value. The default is 127.
Max Info Frames - defines the maximum number of responses that will be sent when the RTU-MP receives
the token.
Any positive integer is a valid number. The default is 10 and should be ideal for the majority of applications. In
cases where the RTU-MP is the target of many requests, this number could be increased as high as 100 or
200.
NOTES
• MS/TP networks can be comprised of both Master and Slave nodes. Valid MAC addresses for Master
nodes are 0 – 127 and valid addresses for Slave nodes are 0 - 254.
• If the third party attempts to communicate to the controller but does not get a response, make sure the
controller is set as a BACnet MS/TP (m) master. The BACnet software asks the controllers, “Who Is?”
This is to auto-locate devices on the network. Only controllers set as masters will answer this request.
• See Appendix A for Points Mapping tables.
•
See Appendix B for the BACnet Protocol Implementation Conformance Statement (PICS).
Editing MS/TP Properties:
1
From the default screen, press any key to continue.
2
Click the LOGIN button and enter a password of 1111.
3
Click OK .
4
Click the MENU button.
5
Click the right arrow ( > ) to scroll over and down to the Network menu and press the ENTER button. The
BACnet Settings are now shown, Max Masters and Max Info Frames .
If you want to edit
Max Masters:
1
Click the ENTER button to enter edit mode.
2
Use arrow keys and keypad to either type in a new value (1-127), or click the DECR/INCR buttons to
decrease/increase the value, respectively.
3
Click OK to accept the change.
If you want to edit
Max Info Frames:
1
Click the down arrow and then press the ENTER button to enter edit mode.
2
Use arrow keys and keypad to either type in a new value (1-999), or hit the DECR/INCR buttons to
decrease/increase the value, respectively.
3
Click OK button to accept the change.