MultiTrode MultiSmart Installation & Operation Manual page 45
Pump station manager & rtu
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- Installation & operation manual (260 pages) ,
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MultiSmart Installation & Operation Manual
7.5.4
CAN Bus I/O Expansion
MultiSmart I/O expansion units are connected to the main MultiSmart unit using the CAN Bus network. The
CAN Bus can not be used for other external devices.
Third party external I/O modules are connected through the Ethernet port (See Section 14.7). With custom
engineering, any I/O module that supports DNP3 or Modbus communications can be interfaced to the
MultiSmart.
The CAN Bus baud rate and the device ID are set using the dial switches shown below. The ID must be
unique for each device on the CAN Bus.
The baud rate should be set to the same speed on every device connected to the bus. Select a suitable
speed for the length of cable between devices as shown in the table below.
Figure 48 – CAN Bus Settings
If the CAN Bus baud rate is changed on the unit, the same change must be made in the Advanced menu.
Navigate to:
and select the appropriate value.
MultiSmart_IO_Manual_A4_v2-22_R15.doc
Table 3 – Max. Cable Length at Specific Baud
Rates
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Questions and answers
I have four pumps connected to my multi smart. One jockey and three that rotate with the jockey as needed. My problem is that the jockey pump always shows its running even when it isn't running. the other pumps show actuate run times and starts. only the main pump shows continuous run even when it is turned off. I was wondering if there any advice I could be given to resolve this issue.
The MultiTrode MultiSmart may show the jockey pump as continuously running even when it is turned off due to the "External Run" status. This occurs if the pump is started by an external control method, such as a manual override switch, where the contactor remains closed but no run command was sent by the controller. As a result, the system continues updating run time statistics and generating relevant faults or warnings. Checking for an external control signal or a stuck contactor may help resolve the issue.
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