6RL SERIES OPERATION MANUAL
SECTION 7: REMOTE PROGRAMMING
Entire Contents Copyright
2018 by Adaptive Power Systems, Inc. (APS) • All Rights Reserved • No reproduction without written authorization from APS.
6RL Series Regenerative DC Load Operation Manual
Page 184 of 204
The error codes used here are the same as with ModBus. See section 7.9.4, “Communication
Errors”.
7.15.3.5
Cyclic reading
The cyclic read feature is an extended function where the unit can automatically send
specific objects to specific IDs and in a specific interval. Cyclic read messages differ from
those of normal read actions.
In order to activate and use cyclic read, the user has to:
1.
Set the separate base ID for cyclic read on the unit (HMI, CAN settings).
2.
Define which of the 5 available objects for cyclic are going to be used and activate
them by setting the interval time to a value other than zero.
The interval times for the 5 objects can be separately and arbitrarily. In case they match or
overlap, the unit will send the corresponding messages subsequently and as fast as possible.
Note: The minimum interval is 20 ms. When using very low CAN bus speed, for example
10-50 kbps, a CAN bus error may occur because of too much traffic.
Once cyclic read is activated by setting the interval time of at least available object to other
than 0 and as soon as a CAN connection is established, the unit will start to automatically
and permanently send messages to the defined IDs. While the CAN connection is open, the
cyclic read feature can be turned off or on at will using the CAN settings on the HMI or the
corresponding commands.
There are 5 IDs to reserve for cyclic read. Starting at the adjustable "Base ID Cyclic Read"
(see Front panel operation of the unit) the data in the messages is defined as follows:
Access: Base ID Cyclic Read (Status).
Bytes 0-3
Device status (32 Bit)
Summary of Contents for 6RL Series
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