User`s guide

Overview
UMC800 Overview
Release E UMC800 Control Builder User’s Guide 5
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Recipes
Recipe configuration lets you define up to 50 recipes each containing from 1 to 50. Each recipe carries its
own unique recipe number and a name that identifies it. These sets of variable values can be loaded through
the operator interface or automatically via the recipe load (RCP) function block.
The recipe variable list is configured using the “Control Builder” software. An operator will be able to
change individual item values through the Operator Interface, unless you prohibit access through
configuration.
For automatic loading of a setpoint profile in addition to other variables, a variable representing a profile
number may be included in the recipe.
Data storage
The optional Data Storage feature in the operator interface provides background storage of process
information on a 3.5-inch floppy disk for analysis by an off-line computer equipped with Honeywell Data
Analysis Software (SDA).
The instrument can support both continuous and discontinuous (batching) modes of storage for Trends,
Point Logs (unit data samples), and Alarm/Events.
Digital event recording
Digital event recording is also available in the operator interface to store up to 150 off to on transitions of
digital events from the controller. Event data includes the point tag, a 16-character point description, and
the time and date of event occurrence. The 16 character point description is also displayed on the lower
center of each display when the event turns on.
Modbus communications
An optional Serial communication card is available that provides 2 - RS 485 serial communication ports.
Both ports support the Modbus RTU protocol, one functioning as a slave, the other as a Master.
Slave Communications: The multi-drop slave communication port may be networked with up to 31
UMC800 controllers or other Modbus compatible devices to a single PC or host device. The
communication protocol allows read and write operations to the data parameters of the controller, including
analog and digital inputs and outputs, loop parameters, calculations setpoint programs and schedules.
Master Communications: The Master communication port supports read and write operations for up to 16
Modbus compatible devices. The data transferred via this port is integrated into the users control strategy
through read and write function blocks. A single function block supports reading and writing up to 4
parameters each to a slave device. Two additional blocks are available that each support reading up to 16
parameters or writing up to 8 parameters. Multiple function blocks may be assigned to a single external
device. The data exchanged with external devices is limited to a 2 second maximum rate.
An optional Ethernet communications card is also available. The selection of Modbus RTU via Ethernet
implements the Modbus TCP communications driver.
Remote controller access
The Control Builder and User Utility software supports remote access to the controller via Dial-up Modem.
An external modem is required at the controller and is connected to the standard RS 232 configuration port.
Remote access functions include on-line monitoring, configuration upload and download.
Honeywell has qualified four commercially available modems modems can be used with the UMC800
controller.