Honeywell UMC800 User Manual
Page 14
Equipment Identification
Controller Components
6
UMC800 Controller Installation and User Guide
Release F
4/01
I/O modules
Eleven different module types can be installed in the controller to support both analog and digital inputs
and outputs of various types and signal levels. The signal type and I/O capacity for each module type is
indicated in Table 1.
Table 1 Controller plug-in I/O module types
Module Type
Signal Types
Maximum
I/O
I/O per
card
Maximum no.
of cards
Universal Analog Inputs (AI)
mV, V, mA, T/C, RTD, Ohms
64
4
16
Analog Outputs (AO)
0 mA to 20 mA
16
4
4
Digital Inputs (DI) - 4 types:
AC
100/240 Vac
96
6
16
DC
24 Vdc
96
6
16
Logic
Dry contacts
(5 mA - 5 Vdc)
96
6
16
16 point
Dry contacts
48
16
3
Digital Outputs (DO) - 4 types:
AC
100/240 Vac
96
6
16
AC
High current outputs
100/240 Vac
With:
2 outputs rated @ 2 A
4 outputs rated @ 0.5 A
12
2
12
DC
24 Vdc
96
6
16
Relay
SPST normally open (NO) or
normally closed (NC) contact.
(User configurable)
60
6
10
Pulse Input/Frequency Input
24 Vdc
64
4
16
pH Power Module
± 15 Vdc
8
4
2
NOTE: Total combined digital I/O is 96 points.
Control architecture
The UMC800 uses a function block configuration architecture to develop control strategies for both analog
and digital operations. A function block may represent a physical input or output, a group of physical inputs
or outputs, an internal calculation, or an internal function such as a PID algorithm. More than 70 standard
UMC800 function block algorithm types are available for configuring analog and logic functions.
Typically, a function block algorithm type may be used any number of times up to the limit of 250 blocks.
Some of these with specific limitations are:
•
Control loops (i.e., PID, ON/OFF, TPSC, and Carbon potential)—eight or sixteen maximum
•
Setpoint programmer and associated support blocks—four maximum
•
Setpoint Scheduler and associated support blocks—one maximum
•
Time proportioning output blocks—sixteen maximum
•
Pushbutton blocks—four maximum
•
4 Selector Switch blocks—four maximum
•
Modbus Slave blocks—sixteen maximum