UMAX030211 Version 1.0.2. Preliminary Documentation – May be subject to change
41 - 85
Constant Values
Object 5010h
Constant Field Value
is provided to give the user the option for a fixed value that can
be used by other function blocks. Sub-index 1 is fixed as FALSE (0) and sub-index 2 is always TRUE
(1). There are 13 other sub-indexes provided for user selectable values.
The constants are read as 32-bit real (float) data, so no decimal digit object is provided. When setting
up the constant, make sure to do it with the resolution of the object that will be compared with it.
The False/True constants are provided primarily to be used with the logic block. The variable
constants are also useful with the logic or math blocks.
Fault Detection Objects
Object 5040h
FD Field Value
is a read only object containing the field values of the over
temperature, over and under voltage. Object 5041h
FD Set Threshold
sets the limit values for which
the faults occur when reached. When any of these thresholds are reached, the faults will clear when
the values have lowered to values set in object 5042h
FD Clear Threshold.
For the 12IN-8SOUT-CO controller to begin monitoring fault detections, object 5050h
Error Check
Detection
determines which Fault Detection is enabled through 1-byte data as bits. Once a fault is
detected, object 5051h
Error Response Delay
will determine how long the fault needs to be present
to flag and error.
Startup
The object 5555h
Start in Operational
is provided as a ‘cheat’ when the unit is not intended to work
with a CANopen network (i.e. a stand-alone control), or is working on a network comprised solely as
slaves so the OPERATION command will never be received from a master. By default, this object is
disabled (FALSE).
When using the 12IN-8SOUT-CO as a stand-alone controller where 5555h is set to TRUE, it is
recommended to disable all TPDOs (set the Event Timer to zero) so that it does not run with a
continuous CAN error when not connected to a bus.
