Control Microsystems SCADAPack LP User Manual

5 Analog Inputs
There are six single ended analog inputs available to the user. These inputs provide 15-bit resolution
over the range of the input. Five of these inputs are selectable for voltage or current inputs. One of
these inputs is a 0 to 32.768-volt input and can be used to monitor battery voltage.
In addition to these analog inputs there are internal analog inputs available to the user. These analog
inputs are used in application programs to monitor, RAM battery voltage, controller board ambient
temperature and DC\DC converter voltage used for VLOOP.
Input Type Description
0 to 4 external Jumper selectable for 0-10V or 0-40mA inputs.
5 external 0-32.768V for battery monitoring
6 internal DC/DC converter output voltage
7 internal Used internally by SCADAPack LP.
Refer to the appropriate software manual for information on using the SCADAPack LP Analog
Inputs in application programs. For TelePACE applications refer to the Register Assignment for
SCADAPack LP I/O module and for ISaGRAF applications refer to the I/O Complex Equipment for
SCADAPack LP I/O.
5.1 Internal Analog Inputs
SCADAPack LP Controllers have two internal analog inputs. These internal analog inputs are
accessed from the user application program.
The ambient temperature input measures the temperature at the controller circuit board. It is useful
for measuring the operating environment of the controller and returns an integer value in the range –
40 to 75 deg C or –40 to 167 deg F. The temperature reading represents temperatures in the range -
40°C to 75°C or -40°F to 167°F. Temperatures outside this range cannot be measured.
• For TelePACE applications use the AIN Controller Temperature register assignment to read the
ambient temperature in degrees C and degrees F.
• For ISaGRAF applications use the aintemp I/O connection to read the ambient temperature in
degrees C and degrees F.
The lithium battery input measures the voltage of the battery that maintains the non-volatile RAM in
the controller. The reading returned from this input is in the range from 0 – 5000 representing the
battery voltage in mV. It is useful in determining if the battery needs replacement. The 3.6V lithium
battery will return a typical value of 3600 or 3700. A reading less than 3000 (3.0V) indicates that the
lithium battery requires replacement.
• For TelePACE applications use the AIN Controller RAM Battery V register assignment to read
the lithium battery voltage.
• For ISaGRAF applications use the ainbatt I/O connection to read the lithium battery voltage.
5.2 I/O Analog Inputs
There are six single ended analog inputs available to the user. These analog inputs provide 15-bit
resolution over the entire range of the input. The analog inputs are transient protected and share a
common return (GND) that is connected to the chassis. Refer to Figure 2: SCADAPack LP Board
Layout for the location of P9.
SCADAPack LP Hardware Manual
May 26, 2006
13

Control Microsystems SCADAPack LP Specifications

General

Model	SCADAPack LP
Digital Inputs	8
Analog Inputs	4
Analog Outputs	2
Communication Protocols	Modbus RTU, Modbus TCP, DNP3
Enclosure Rating	IP20
Certifications	CE, UL, CSA
Type	Programmable Logic Controller
Processor	32-bit
Memory	4 MB Flash
Power Supply	10-30 VDC
Digital Outputs	4
Communication Ports	RS-232, RS-485
Operating Temperature	-40 to 70°C

Summary

Overview

Important Safety Information

Installation

Field Wiring

Explains how to connect field wires to SCADAPack controllers using screw terminals.

Power Supply

System Grounding

Describes connecting the system power supply common to chassis or panel ground.

Power Management Features

Details features like COM3 port power, VLoop, and DC/DC converter control.

COM3 Serial Port Power Control

Explains controlling power to the COM3 serial port for HMI communication.

VLOOP Power Control

Describes controlling the VLOOP output for powering analog input loops.

12V to 24V DC/DC Converter Control

Details controlling the DC/DC converter for VLOOP and analog output modules.

Analog Inputs

Internal Analog Inputs

Covers ambient temperature and lithium battery voltage monitoring.

I/O Analog Inputs

Discusses external analog inputs, their configuration, and wiring.

Analog Input Connections

Details how to connect the six external analog inputs to connector P10.

Analog Input Wiring

Explains wiring for loop-powered and self-powered transmitters.

Analog Input Range Jumpers

Describes using jumper links to configure voltage or current inputs.

Analog Inputs Data Format

Explains the A/D converter resolution and data format for inputs.

Analog Outputs

Current Outputs

Describes the two optional 20mA analog outputs and power boosting.

Voltage Outputs

Explains how to obtain voltage outputs by connecting a load resistor.

Analog Outputs Data Format

Details the 12-bit DAC resolution and output signal range.

Digital Outputs

Digital Inputs

Counter Inputs

Counter Input 0

Details using Counter Input 0 for counting contact closures.

Turbine Meter Counter Inputs 1 and 2

Describes connecting millivolt-level turbine meter sensors to inputs 1 and 2.

Serial Communication

RS-232 Serial Communications Ports

Overview of RS-232 ports COM2 and COM3, including wiring requirements.

COM2 RS-232 Serial Port

Lists serial and protocol parameters and default values for COM2.

COM3 RS-232 Serial Port

Lists serial and protocol parameters for COM3, intended for SCADAPack Vision.

RS-232 Wiring Examples

Provides wiring diagrams for DTE/DCE connections with and without handshaking.

DTE to DTE without Handshaking

Shows a simple 3-wire connection between two DTE devices.

DTE to DTE with Handshaking

Illustrates DTE to DTE connection with common handshaking lines (CTS/RTS).

DTE to DCE with Handshaking

Depicts a connection between a SCADAPack and a DCE device requiring handshaking.

RS-232 Cables

Details cables for connecting RJ-45 ports to DE-9 connectors.

RJ-45 to DE-9S DTE

Describes the cable for connecting SCADAPack RJ-45 to a PC's DE-9P DTE.

RJ-45 to SCADAPack Vision

Details the cable for connecting SCADAPack RJ-45 to a SCADAPack Vision DE-9P.

RJ-45 to DE-9P DCE

Explains the cable for connecting SCADAPack RJ-45 to a DCE device's DE-9S.

COM1 RS-485 Serial Communication Port

Describes the RS-485 port, its parameters, and network specifications.

RS-485 Bias Resistors

Explains the function and value of RS-485 bias resistors.

RS-485 Termination Resistors

Details when and how to install RS-485 termination resistors.

RS-485 Wiring Examples

Provides an example of RS-485 wiring to a multivariable transmitter.

Operation

Operating Modes

Explains different startup modes: RUN, SERVICE, and COLD BOOT.

Run Mode

Describes the normal operating mode where application programs execute.

Service Mode

Details mode for programming and maintenance, allowing reprogramming.

Cold Boot Mode

Explains mode for firmware installation, initializes controller and erases programs.

Sleep Mode

Describes extremely low power operation and conditions for waking up.

LED Indicators

Lists the 23 LEDs on the SCADAPack LP and their functions.

LED Power Control

Explains how to disable LEDs to conserve power using the LED POWER button.

Jumpers

Lists configurable jumpers and their relevant sections in the manual.

Status LED

Describes the STAT LED's function indicating alarm conditions.

I/O Module Error Indication

Explains how the STAT LED indicates communication failures with I/O modules.

Register Assignment Checksum Error

Details how the STAT LED indicates an invalid register assignment.

Maintenance

Fuses

Describes the power supply fuse and replacement procedure.

Lithium Battery

Explains the battery's role in maintaining CMOS memory and real-time clock.

Battery Replacement Procedure

Provides step-by-step instructions for replacing the lithium battery.

Troubleshooting

Analog Inputs

Lists common problems and actions for analog input issues.

Analog Outputs

Lists common problems and actions for analog output issues.

Digital Inputs

Lists common problems and actions for digital input issues.

Digital Outputs

Lists common problems and actions for digital output issues.

Counter Inputs

Lists common problems and actions for counter input issues.

Specifications

General

Covers general specifications like I/O terminations, dimensions, and environment.

Controller

Details controller specifications like processors, memory, and clock.

Communications

Lists specifications for COM1 (RS-485) and COM2 (RS-232) ports.

Visual Indicators

Describes the LEDs for COM ports, Status, I/O, Counters, and Push-button.

Power Supply

Specifies DC power input requirements and turn-on/off voltages.

I/O Capacity

Details expansion capabilities with 5000 Series I/O modules.

Analog Inputs

Lists specifications for analog input points, resolution, and resistance.

Analog Outputs

Details specifications for analog output points, range, resistance, and accuracy.

Counter Inputs

Lists specifications for digital counter inputs and turbine meter inputs.

Digital Inputs/Outputs

Covers specifications for digital I/O points, rating, and input thresholds.

Approvals and Certifications