This page is used to configure the Analog/Universal inputs. Select the configuration and enter optional qualifier and scaling values.
The
first 12 Modbus objects are assigned to the 12 hardware
inputs. The objects are set to be floating point, meaning they are
read as register pairs starting at register 1. The last input would be
registers 23-24.
Relay
outputs are assigned to the objects immediately following
the Analog inputs, and they are assigned to unsigend 16-bit integer
values. Relay DO1 is Modbus register 25, and DO2 is register 26.
The
"Is Persistent" option means this object will retain its most recent
value through a power outage, with time delay restrictions as noted in
the user guide. The persistent selection does not take effect until
the Reset Persistent button is clicked on the Resources page. For
inputs, this selection is only relevant for "Pulse counter" mode, in
which case it turns the input into a totalizing counter. For any other
type of input, the value will be immediately overwritten by new data and
thus Is Persistent will have no meaning.
The
VP6-1460 contains a coprocessor which handles direct I/O interface and
also provides an i.CanDrawIt programming environment accessed via an
external PC based tool. The status of the server's connection to
the coprocessor along with its firmware revision is indicated here. If
there is a user program running on the coprocessor, that is also
indicated here.