Honeywell HC900 Installation And User Manual page 44

Components and Architecture - Ethernet Open Connectivity Network
The HC900 Controller uses either Modbus/TCP or Modbus RTU, not ASCII. The Modbus mapping
structure for the HC900 Controller is based on the mapping structure employed in Honeywell's UMC800
Controller, and the function codes and methods for parameter access are also virtually identical.
Modbus Maps
In your controller's configuration certain parameters are each automatically assigned a Modbus address.
These include certain types of function blocks (such as loops and set point programmers), signals and
variables, among other items. Through their addresses these parameters can be accessed or displayed
remotely, such as by a third-party operator interface. Collectively, these Modbus addresses and
parameters are known as the Modbus map.
Two Modbus Mapping options exist: Fixed map and Custom map
Using HC Designer, you can use a pre-defined fixed map where common parameters are mapped out
automatically at fixed addresses, or you can configure a custom map for configurations rev. 4.0 or
higher.
Function blocks added to the controller in release 4.0 and higher are not automatically included in the
Fixed Modbus Map. To access the registers of these function blocks, the Custom Modbus Map must
be used and the block data manually inserted into the custom Modbus map.
HMI Supervisory/SCADA software is available from various suppliers, and functionality and setup
requirements vary with suppliers and with specific products. In all cases, the software selected must be
compatible with Open Modbus/TCP protocol.
The user can use the standard Modbus command set to generate a custom set of drivers for his specific
application, or may purchase additional software (for example, OPC with Modbus /TCP protocol) to
reduce or virtually eliminate development tasks.
HMI software
HMI software available for use with the HC900 Controller includes, but is not necessarily limited to the
following packages.
•
available from Honeywell
−
Plantscape Vista Software, which operates under Windows 2000/XP Pro operating software,
provides PC-based supervisory control and data acquisition. This package includes a large
selection of standard operating display templates, which can reduce development time
significantly. PlantScape includes a full graphic display development environment, enabling
development of custom graphics that include animated responses to changing process conditions.
A batch reporting option is available in release 400, which includes a standard template for
creating batch reports.
−
SpecView32 (SpecView Corporation)
−
OPC Server (works with redundant and non-redundant networks)
•
Other software (available from third-party sources)
The following software, which incorporates Modbus/TCP connectivity, is available from third-party
sources:
−
The Fix Family (Intellution Incorporated)
−
Wonderware (Wonderware Corporation)
−
Citect (CI Technologies)
−
OPC server/client software (various; available from Kepware and others)
: The items in this list are not sold by Honeywell. They have not all been tested and certified by
Note
Honeywell, and are not necessarily recommended or endorsed by Honeywell for any specific use.
32 HC900 Process Controller Installation and User Guide Revision 19
06/14