Sensaphone SCADA 3000 Users manual - Manual (Page 58)

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SCADA 3000 User’s Manual
mODULe TYPeS
Both input and output modules can be connected to the SCADA 3000. The SCADA 3000 can
operate with as many as 144 I/O points—that is, up to 144 functioning inputs and/or outputs.
Phonetics offers three different types of input and three types of output modules.
Input modules
UNIVERSAL INPUT MODULE: This module provides 8 Universal Inputs. They are identi-
cal to the 16 inputs on the SCADA 3000 main unit. Inputs can be set up and wired as NO/NC
dry contact, thermistor, analog voltage input, or 4–20mA transducer.
PULSE COUNT MODULE: This module will count contact closures from a dry circuit at
a rate of up to 10,800 pulses per second. There are four pulse count channels per module. In
addition, the pulse rate for each channel will be computed on a per second, per minute, or per
hour basis. If a rate computation is not desired, you may also select totalizer overflow to accu-
mulate pulses that exceed 1 million. The most common uses for a pulse count module include
flow rates and rpms.
Output modules
RELAY OUTPUT: This unit offers 8 more output relays, identical to the eight on the main
unit.
ANALOG OUTPUT: This module offers 4 analog output channels. The outputs have 12
bits of resolution and can be configured as 4–20mA, 0–20mA, or 0–10V. Most analog outputs
are used for PID applications (looped information used to maintain conditions) as outlined in
Chapter 17.