Set Up Network Ports and Commissioning E2E Setup and Overview • 25
3. Three (3) fields will become visible underneath
the COM4 Connection that pertain to the way the
device communicates:
a. COM4 DevId - This is the E2E BACnet
Device ID; set this to a unique number from all
other BACnet nodes on the network in the
range of 0-4194303.
b. COM4 MSTP MAC - This is the E2E
BACnet MSTP MAC address; set this to a
unique number for E2E in the range of 1-127.
Each BACnet device on the network must have
its own unique MSTP MAC for successful
communication.
c. COM4 Baud - Default setting is 9600; this
must be changed to 19.2k (all devices
connected to the same COM port should be set
to the same baud rate).
d. After the baud rate setting has been selected,
press the
key to exit and save
selections.
5. Now the BACnet MS/TP specific settings must
be configured. From the Home screen on E2E
press
+ on the keypad to navigate to this
screen.
6. Press
+ at the same time to reach the
BACnet tab.
7. Three settings must be configured on the
BACnet tab:
a. Max Master - The default setting is 127, edit and
change the value to be equal to the highest
BACnet mac address that E2E will communicate
with on any of its three (3) comm ports.
Determine what BACnet MS/TP devices are
connected to E2E’s comm ports, then determine
the highest MS/TP MAC address of all the
devices. Set the E2E Max Master equal to the
highest MS/TP MAC address determined.
b. Max Info Frames - This is the max number of
BACnet frames E2E can transmit per token. Set
to 36.
c. APDU timeout - This is the amount of time in
seconds between retransmissions of an APDU
requiring acknowledgment for which no
acknowledgment has been received. Enter a
value of 30 in this field.
d. APDU retries - This is the maximum amount of
times that an APDU shall be retransmitted. Enter
a value of 3 in this field.
e. TimeSync Period - This is the number of
minutes between time synchronization
broadcasts. Enter a value of 1440.
f. UTC TimeSync - This toggles the time sync
broadcast to use coordinated universal time
mode. Toggle this field to NO.
7. Now the Module can be added to E2E. Press
to access Connected I/O
Boards and Controllers screen.
Figure 4-3 - E2E- TCP/IP Tab
Figure 4-4 - E2E- BACnet Tab
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