Technical Bulletin—TC-9100 Universal Controller
43
Table 22: Auto-dial Conditions
Condition Description
AIH
n
= 1
Analog Input
n
High Alarm (
n
=1-4)
AIL
n
= 1
Analog
Input
n
Low Alarm (
n
=1-4)
WIN = 1
Window
Open
ALM = 1
General
Alarm
AFM = 1
Low Limit (Anti-freeze) Mode Active
The TC-9100 Universal Controller may be monitored and controlled by a
supervisory system via the RS-485 communications bus. In addition to
the reading and writing of operating parameters, detailed in each of the
sections on the configuration of inputs, outputs and programmable
modules, the supervisory system may read and set the operating and
control modes of the controller. These modes are described in the section
Modes of Operation
at the beginning of this manual.
In order to set the operating mode of the controller, the supervisory
system must set the Supervisory System Active Refresh Bit on power-up,
and afterwards once every hour, and the Supervisory Mode Control Bit or
the Manual Operating Mode (MAN) Bit must be set to tell the controller
to use the operating mode command from the supervisory system. When
the manual operating mode is set, the controller always uses the operating
mode given by the supervisory system, ignoring the Local Occupancy
sensor and Alternate Occupancy mode commands. All supervisory
system commands must be sent again after a power failure.
When neither the Supervisory Mode Control Bit nor the Manual
Operating Mode Bit is set, the operating mode can be set by the TM-9180
Room Command Module. If a TM-9180 module is not connected, the
controller will remain in Standalone mode.
For consistency with the DR-9100 series of controllers, the TC-9100
Universal Controller will accept a Shutoff mode command from the
supervisory system. The Shutoff mode in the TC-9100 controller is
synonymous with the OFF mode, and a Shutoff mode command will
override an operating mode command (COMFORT, STANDBY or
NIGHT) and a Startup mode command.
The Startup mode may be used to force the output of a programmable
module configured as a controller algorithm to a maximum (100%) or
minimum (0% or Low Limit value, whichever is lower) level during a
startup phase of control.
The Startup mode command is sent from the supervisory system and is
canceled when the absolute error (
⏐
Process Variable
−
Working Set
Point
⏐
) in Programmable Module 1 is less than 5% of the range of the
process variable.
Supervisory
Functions and
Configuration
Monitoring and
Control
Shutoff Mode
Startup Mode